chore(deps): bump docker/setup-buildx-action from 3 to 4

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3 to 4.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v3...v4)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: weekly
+
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+

.github/workflows/docker-images.yml

@@ -41,7 +41,7 @@ jobs:
           # henrygd/beszel-agent-nvidia
           - image: henrygd/beszel-agent-nvidia
             dockerfile: ./internal/dockerfile_agent_nvidia
-            platforms: linux/amd64
+            platforms: linux/amd64,linux/arm64
             registry: docker.io
             username_secret: DOCKERHUB_USERNAME
             password_secret: DOCKERHUB_TOKEN
@@ -96,7 +96,7 @@ jobs:
           # ghcr.io/henrygd/beszel-agent-nvidia
           - image: ghcr.io/${{ github.repository }}/beszel-agent-nvidia
             dockerfile: ./internal/dockerfile_agent_nvidia
-            platforms: linux/amd64
+            platforms: linux/amd64,linux/arm64
             registry: ghcr.io
             username: ${{ github.actor }}
             password_secret: GITHUB_TOKEN
@@ -152,7 +152,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Set up bun
         uses: oven-sh/setup-bun@v2
@@ -164,14 +164,14 @@ jobs:
         run: bun run --cwd ./internal/site build
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Docker metadata
         id: metadata
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ${{ matrix.image }}
           tags: ${{ matrix.tags }}
@@ -181,7 +181,7 @@ jobs:
         env:
           password_secret_exists: ${{ secrets[matrix.password_secret] != '' && 'true' || 'false' }}
         if: github.event_name != 'pull_request' && env.password_secret_exists == 'true'
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ matrix.username || secrets[matrix.username_secret] }}
           password: ${{ secrets[matrix.password_secret] }}
@@ -190,11 +190,13 @@ jobs:
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v7
         with:
           context: ./
           file: ${{ matrix.dockerfile }}
           platforms: ${{ matrix.platforms || 'linux/amd64,linux/arm64,linux/arm/v7' }}
           push: ${{ github.ref_type == 'tag' && secrets[matrix.password_secret] != '' }}
+          provenance: mode=max
+          sbom: true
           tags: ${{ steps.metadata.outputs.tags }}
           labels: ${{ steps.metadata.outputs.labels }}

.github/workflows/inactivity-actions.yml

@@ -15,7 +15,7 @@ jobs:
     name: Lock Inactive Issues
     runs-on: ubuntu-24.04
     steps:
-      - uses: klaasnicolaas/action-inactivity-lock@v1.1.3
+      - uses: klaasnicolaas/action-inactivity-lock@v2.0.1
         id: lock
         with:
           days-inactive-issues: 14
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Close Stale Issues
-        uses: actions/stale@v10
+        uses: actions/stale@v11
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
 
@@ -27,12 +27,12 @@ jobs:
         run: bun run --cwd ./internal/site build
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v7
         with:
           go-version: "^1.22.1"
 
       - name: Set up .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: "9.0.x"
 
@@ -42,7 +42,7 @@ jobs:
         shell: bash
 
       - name: GoReleaser beszel
-        uses: goreleaser/goreleaser-action@v6
+        uses: goreleaser/goreleaser-action@v7
         with:
           workdir: ./
           distribution: goreleaser

.github/workflows/vulncheck.yml

@@ -19,11 +19,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Set up Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v7
         with:
-          go-version: 1.26.x
+          go-version: stable
           # cached: false
       - name: Get official govulncheck
         run: go install golang.org/x/vuln/cmd/govulncheck@latest

Makefile

@@ -52,7 +52,7 @@ lint:
 	golangci-lint run
 
 test:
-	go test -tags=testing ./...
+	go test -tags='testing no_ui' ./...
 
 tidy:
 	go mod tidy

agent/battery/battery_linux.go

@@ -102,6 +102,7 @@ func GetBatteryStats() (batteryPercent uint8, batteryState uint8, err error) {
 		if parseErr != nil {
 			continue
 		}
+		cap = min(max(cap, 0), 100)
 		totalPercent += cap
 		count++
 

agent/battery/battery_linux_test.go

@@ -91,6 +91,16 @@ func TestGetBatteryStats_FullBattery(t *testing.T) {
 	assert.Equal(t, stateFull, state)
 }
 
+func TestGetBatteryStats_CapacityClamped(t *testing.T) {
+	_, addBattery := setupFakeSysfs(t)
+	addBattery("BAT0", "105", "Charging")
+
+	pct, state, err := GetBatteryStats()
+	assert.NoError(t, err)
+	assert.Equal(t, uint8(100), pct)
+	assert.Equal(t, stateCharging, state)
+}
+
 func TestGetBatteryStats_EmptyBattery(t *testing.T) {
 	_, addBattery := setupFakeSysfs(t)
 	addBattery("BAT0", "0", "Empty")

agent/client.go

@@ -53,8 +53,8 @@ func newWebSocketClient(agent *Agent) (client *WebSocketClient, err error) {
 	client = &WebSocketClient{}
 
 	client.hubURL, err = url.Parse(hubURLStr)
-	if err != nil {
-		return nil, errors.New("invalid hub URL")
+	if err != nil || client.hubURL.Host == "" {
+		return nil, fmt.Errorf("invalid HUB_URL %q: must include scheme and host (e.g. http://hub.example.com:8090)", hubURLStr)
 	}
 	// get registration token
 	client.token, err = getToken()

agent/client_test.go

@@ -51,11 +51,18 @@ func TestNewWebSocketClient(t *testing.T) {
 			errorMsg:    "HUB_URL environment variable not set",
 		},
 		{
-			name:        "invalid URL",
+			name:        "malformed URL",
 			hubURL:      "ht\ttp://invalid",
 			token:       "test-token",
 			expectError: true,
-			errorMsg:    "invalid hub URL",
+			errorMsg:    "invalid HUB_URL",
+		},
+		{
+			name:        "URL without host",
+			hubURL:      "http:/api",
+			token:       "test-token",
+			expectError: true,
+			errorMsg:    "invalid HUB_URL",
 		},
 		{
 			name:        "missing token",

agent/docker.go

@@ -65,7 +65,6 @@ type dockerManager struct {
 	dockerVersionChecked bool                        // Whether a version probe has completed successfully
 	isWindows            bool                        // Whether the Docker Engine API is running on Windows
 	buf                  *bytes.Buffer               // Buffer to store and read response bodies
-	decoder              *json.Decoder               // Reusable JSON decoder that reads from buf
 	apiStats             *container.ApiStats         // Reusable API stats object
 	excludeContainers    []string                    // Patterns to exclude containers by name
 	usingPodman          bool                        // Whether the Docker Engine API is running on Podman
@@ -374,16 +373,26 @@ func convertContainerPortsToString(ctr *container.ApiInfo) string {
 		return ""
 	}
 	sort.Slice(ctr.Ports, func(i, j int) bool {
-		return ctr.Ports[i].PublicPort < ctr.Ports[j].PublicPort
+		if ctr.Ports[i].PublicPort != ctr.Ports[j].PublicPort {
+			return ctr.Ports[i].PublicPort < ctr.Ports[j].PublicPort
+		}
+		return ctr.Ports[i].IP < ctr.Ports[j].IP
 	})
 	var builder strings.Builder
-	seenPorts := make(map[uint16]struct{})
+	seen := make(map[string]struct{})
 	for _, p := range ctr.Ports {
-		_, ok := seenPorts[p.PublicPort]
-		if p.PublicPort == 0 || ok {
+		if p.PublicPort == 0 {
 			continue
 		}
-		seenPorts[p.PublicPort] = struct{}{}
+		keyIP := p.IP
+		if keyIP == "0.0.0.0" || keyIP == "::" {
+			keyIP = ""
+		}
+		key := keyIP + ":" + strconv.Itoa(int(p.PublicPort))
+		if _, ok := seen[key]; ok {
+			continue
+		}
+		seen[key] = struct{}{}
 		if builder.Len() > 0 {
 			builder.WriteString(", ")
 		}
@@ -747,20 +756,18 @@ func (dm *dockerManager) applyDockerVersionInfo(serverHeader string, versionInfo
 	}
 }
 
-// Decodes Docker API JSON response using a reusable buffer and decoder. Not thread safe.
+// Decodes a Docker API JSON response using a reusable buffer. Not thread safe.
 func (dm *dockerManager) decode(resp *http.Response, d any) error {
 	if dm.buf == nil {
 		// initialize buffer with 256kb starting size
 		dm.buf = bytes.NewBuffer(make([]byte, 0, 1024*256))
-		dm.decoder = json.NewDecoder(dm.buf)
 	}
 	defer resp.Body.Close()
 	defer dm.buf.Reset()
-	_, err := dm.buf.ReadFrom(resp.Body)
-	if err != nil {
+	if _, err := dm.buf.ReadFrom(resp.Body); err != nil {
 		return err
 	}
-	return dm.decoder.Decode(d)
+	return json.Unmarshal(dm.buf.Bytes(), d)
 }
 
 // Test docker / podman sockets and return if one exists

agent/docker_test.go

@@ -804,6 +804,24 @@ func TestGetDockerStatsRetriesVersionCheckUntilSuccess(t *testing.T) {
 	assert.Equal(t, 2, requestCounts["/version"])
 }
 
+// A failed decode must not break later decodes. Previously the reused json.Decoder
+// stayed desynced after one truncated response, breaking decode until restart.
+func TestDecodeRecoversFromError(t *testing.T) {
+	dm := &dockerManager{}
+
+	// truncated JSON: body reads fine, decode fails
+	var bad []container.ApiInfo
+	err := dm.decode(&http.Response{Body: io.NopCloser(strings.NewReader(`[{"Id":"abc`))}, &bad)
+	require.Error(t, err)
+
+	// the next decode must still succeed
+	var good []container.ApiInfo
+	err = dm.decode(&http.Response{Body: io.NopCloser(strings.NewReader(`[{"Id":"abcdef012345","Names":["/ok"]}]`))}, &good)
+	require.NoError(t, err)
+	require.Len(t, good, 1)
+	assert.Equal(t, "abcdef012345", good[0].Id)
+}
+
 func TestCycleCpuDeltas(t *testing.T) {
 	dm := &dockerManager{
 		lastCpuContainer: map[uint16]map[string]uint64{
@@ -1003,6 +1021,44 @@ func TestCpuPercentageCalculationWithRealData(t *testing.T) {
 	assert.InDelta(t, expectedPct, actualPct, 0.01)
 }
 
+func TestCpuPercentageHandlesCounterRollback(t *testing.T) {
+	// If a stats response is processed after a newer one for the same container,
+	// or an accounting counter resets, the current total can be lower than the
+	// stored previous value. Unsigned subtraction wraps to ~2^64 instead of
+	// going negative, so the percentage explodes, validateCpuPercentage rejects
+	// the sample, and the whole collection is discarded - network stats too.
+	stats := &container.ApiStats{
+		CPUStats: container.CPUStats{
+			CPUUsage:    container.CPUUsage{TotalUsage: 1_000_000},
+			SystemUsage: 20_000_000,
+		},
+	}
+
+	// Container counter went backwards.
+	assert.Equal(t, 0.0, stats.CalculateCpuPercentLinux(2_000_000, 10_000_000))
+	// System counter went backwards.
+	assert.Equal(t, 0.0, stats.CalculateCpuPercentLinux(500_000, 30_000_000))
+	// A normal forward sample is unaffected: 500000 / 10000000 * 100 = 5%.
+	assert.InDelta(t, 5.0, stats.CalculateCpuPercentLinux(500_000, 10_000_000), 0.001)
+}
+
+func TestCpuPercentageWindowsHandlesCounterRollback(t *testing.T) {
+	now := time.Now()
+	stats := &container.ApiStats{
+		Read:     now,
+		NumProcs: 4,
+		CPUStats: container.CPUStats{
+			CPUUsage: container.CPUUsage{TotalUsage: 1_000_000},
+		},
+	}
+	prevRead := now.Add(-time.Second)
+
+	// Container counter went backwards.
+	assert.Equal(t, 0.0, stats.CalculateCpuPercentWindows(2_000_000, prevRead))
+	// A normal forward sample is unaffected.
+	assert.Greater(t, stats.CalculateCpuPercentWindows(500_000, prevRead), 0.0)
+}
+
 func TestNetworkStatsCalculationWithRealData(t *testing.T) {
 	// Create synthetic test data to avoid timing issues
 	apiStats1 := &container.ApiStats{
@@ -1864,6 +1920,14 @@ func TestConvertContainerPortsToString(t *testing.T) {
 			},
 			expected: "80, 443",
 		},
+		{
+			name: "ipv4 and ipv6 wildcard bindings are deduplicated",
+			ports: []port{
+				{PublicPort: 80, IP: "0.0.0.0"},
+				{PublicPort: 80, IP: "::"},
+			},
+			expected: "80",
+		},
 		{
 			name: "multiple ports with different IPs",
 			ports: []port{
@@ -1872,6 +1936,22 @@ func TestConvertContainerPortsToString(t *testing.T) {
 			},
 			expected: "80, 1.2.3.4:443",
 		},
+		{
+			name: "same port bound to multiple IPs shows all entries",
+			ports: []port{
+				{PublicPort: 65533, IP: "172.16.151.72"},
+				{PublicPort: 65533, IP: "172.16.156.25"},
+			},
+			expected: "172.16.151.72:65533, 172.16.156.25:65533",
+		},
+		{
+			name: "same port bound to IPv4 and IPv6",
+			ports: []port{
+				{PublicPort: 65534, IP: "172.16.151.72"},
+				{PublicPort: 65534, IP: "fd04:38e2:98c6:3fd::72"},
+			},
+			expected: "172.16.151.72:65534, fd04:38e2:98c6:3fd::72:65534",
+		},
 		{
 			name: "ports slice is nilled after call",
 			ports: []port{

agent/fans.go

@@ -0,0 +1,101 @@
+package agent
+
+import (
+	"log/slog"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+
+	"github.com/henrygd/beszel/agent/utils"
+	"github.com/henrygd/beszel/internal/entities/system"
+)
+
+type fanSensor struct {
+	key, path string
+}
+
+var getFanSensors = newFanSensorCache(hwmonRoot)
+
+func newFanSensorCache(root string) func() ([]fanSensor, error) {
+	return sync.OnceValues(func() ([]fanSensor, error) {
+		return discoverHwmonFans(root)
+	})
+}
+
+// updateFans populates systemStats.Fans from the host's hwmon sysfs tree.
+// No-op on platforms where hwmon isn't available (see fans_other.go).
+func (a *Agent) updateFans(systemStats *system.Stats) {
+	if hwmonRoot == "" {
+		return
+	}
+	sensors, err := getFanSensors()
+	if err != nil {
+		slog.Debug("Error reading fans", "err", err)
+		return
+	}
+	fans := readFanSensors(sensors)
+	if len(fans) == 0 {
+		return
+	}
+	systemStats.Fans = fans
+	// Note: Commented out because we don't currently use this value in the UI.
+	// Compute the single "dashboard" value used by the FanSpeed alert.
+	// Per-sensor RPMs live in Stats.Fans and drive the multi-line FanChart
+	// in the UI; the alert path only needs one number to compare against
+	// the user's threshold, so we use the highest RPM across all fans
+	// a.systemInfo.DashboardFan = 0
+	// for _, rpm := range fans {
+	// 	if rpm > a.systemInfo.DashboardFan {
+	// 		a.systemInfo.DashboardFan = rpm
+	// 	}
+	// }
+}
+
+// readHwmonFans walks the given hwmon root (typically /sys/class/hwmon) and
+// returns a map of "<chip>_<label-or-fan-idx>" → RPM for every fan*_input
+// file it finds. Zero RPM is retained because it can represent a real fan that
+// has stopped; negative and malformed readings are ignored.
+func readHwmonFans(root string) (map[string]uint16, error) {
+	sensors, err := discoverHwmonFans(root)
+	if err != nil {
+		return nil, err
+	}
+	return readFanSensors(sensors), nil
+}
+
+func discoverHwmonFans(root string) ([]fanSensor, error) {
+	entries, err := os.ReadDir(root)
+	if err != nil {
+		return nil, err
+	}
+	var sensors []fanSensor
+	for _, entry := range entries {
+		chipDir := filepath.Join(root, entry.Name())
+		chipName := utils.ReadStringFile(filepath.Join(chipDir, "name"))
+		if chipName == "" {
+			chipName = entry.Name()
+		}
+		inputs, _ := filepath.Glob(filepath.Join(chipDir, "fan*_input"))
+		for _, inputPath := range inputs {
+			base := strings.TrimSuffix(filepath.Base(inputPath), "_input")
+			label := utils.ReadStringFile(filepath.Join(chipDir, base+"_label"))
+			key := chipName + "_" + base
+			if label != "" {
+				key = chipName + "_" + label
+			}
+			sensors = append(sensors, fanSensor{key, inputPath})
+		}
+	}
+	return sensors, nil
+}
+
+func readFanSensors(sensors []fanSensor) map[string]uint16 {
+	fans := make(map[string]uint16, len(sensors))
+	for _, sensor := range sensors {
+		if rpm, ok := utils.ReadUintFile(sensor.path); ok {
+			fans[sensor.key] = uint16(rpm)
+		}
+	}
+	return fans
+}

agent/fans_linux.go

@@ -0,0 +1,8 @@
+//go:build linux
+
+package agent
+
+// hwmonRoot is the sysfs entry point for hardware monitor chips. Each
+// subdirectory (hwmon0, hwmon1, …) is one chip; fan*_input files inside it
+// expose RPM readings.
+const hwmonRoot = "/sys/class/hwmon"

agent/fans_other.go

@@ -0,0 +1,7 @@
+//go:build !linux
+
+package agent
+
+// hwmonRoot is empty on non-Linux platforms — fan RPM reporting via sysfs
+// hwmon is Linux-specific. updateFans() short-circuits when this is empty.
+const hwmonRoot = ""

agent/fans_test.go

@@ -0,0 +1,87 @@
+//go:build testing
+
+package agent
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// writeFile creates path with parents and writes contents.
+func writeFile(t *testing.T, path, contents string) {
+	t.Helper()
+	require.NoError(t, os.MkdirAll(filepath.Dir(path), 0o755))
+	require.NoError(t, os.WriteFile(path, []byte(contents), 0o644))
+}
+
+// TestReadHwmonFans verifies the /sys/class/hwmon walker:
+//   - picks up fan*_input from every chip,
+//   - keys entries by chip name + sensor label (or fan idx if no label),
+//   - retains 0 RPM for stopped fans,
+//   - tolerates chips with no fan files at all.
+func TestReadHwmonFans(t *testing.T) {
+	root := t.TempDir()
+
+	// hwmon0: Raspberry Pi 5 active cooler — one fan, no label.
+	writeFile(t, filepath.Join(root, "hwmon0", "name"), "pwmfan\n")
+	writeFile(t, filepath.Join(root, "hwmon0", "fan1_input"), "6500\n")
+
+	// hwmon1: a thermal-only chip, no fan files. Must not error.
+	writeFile(t, filepath.Join(root, "hwmon1", "name"), "cpu_thermal\n")
+	writeFile(t, filepath.Join(root, "hwmon1", "temp1_input"), "55000\n")
+
+	// hwmon2: two fans — one stopped (0 RPM) and one labeled "chassis".
+	writeFile(t, filepath.Join(root, "hwmon2", "name"), "nct6798\n")
+	writeFile(t, filepath.Join(root, "hwmon2", "fan1_input"), "0\n")
+	writeFile(t, filepath.Join(root, "hwmon2", "fan2_input"), "1200\n")
+	writeFile(t, filepath.Join(root, "hwmon2", "fan2_label"), "chassis\n")
+
+	fans, err := readHwmonFans(root)
+	require.NoError(t, err)
+
+	assert.Equal(t, map[string]uint16{
+		"pwmfan_fan1":     6500,
+		"nct6798_fan1":    0,
+		"nct6798_chassis": 1200,
+	}, fans)
+}
+
+// TestReadHwmonFansMissingRoot returns an error rather than panicking when the
+// hwmon root doesn't exist (e.g. running on a kernel without hwmon support).
+func TestReadHwmonFansMissingRoot(t *testing.T) {
+	_, err := readHwmonFans(filepath.Join(t.TempDir(), "does-not-exist"))
+	assert.Error(t, err)
+}
+
+// TestReadHwmonFansEmpty returns an empty map (not nil error) when the root
+// exists but contains no chips at all.
+func TestReadHwmonFansEmpty(t *testing.T) {
+	root := t.TempDir()
+	fans, err := readHwmonFans(root)
+	require.NoError(t, err)
+	assert.Empty(t, fans)
+}
+
+func TestFanDiscoveryCache(t *testing.T) {
+	root := t.TempDir()
+	input := filepath.Join(root, "hwmon0", "fan1_input")
+	writeFile(t, filepath.Join(root, "hwmon0", "name"), "chip\n")
+	writeFile(t, input, "1000\n")
+
+	getSensors := newFanSensorCache(root)
+	sensors, err := getSensors()
+	require.NoError(t, err)
+	fans := readFanSensors(sensors)
+	assert.Equal(t, uint16(1000), fans["chip_fan1"])
+
+	writeFile(t, input, "1200\n")
+	writeFile(t, filepath.Join(root, "hwmon0", "fan1_label"), "case\n")
+	sensors, err = getSensors()
+	require.NoError(t, err)
+	fans = readFanSensors(sensors)
+	assert.Equal(t, map[string]uint16{"chip_fan1": 1200}, fans)
+}

agent/handlers.go

@@ -166,14 +166,16 @@ type GetSmartDataHandler struct{}
 
 func (h *GetSmartDataHandler) Handle(hctx *HandlerContext) error {
 	if hctx.Agent.smartManager == nil {
-		// return empty map to indicate no data
-		return hctx.SendResponse(map[string]smart.SmartData{}, hctx.RequestID)
+		return hctx.SendResponse(smart.SmartDataResponse{Data: map[string]smart.SmartData{}}, hctx.RequestID)
 	}
-	if err := hctx.Agent.smartManager.Refresh(false); err != nil {
+	complete, err := hctx.Agent.smartManager.Refresh(false)
+	if err != nil {
 		slog.Debug("smart refresh failed", "err", err)
 	}
-	data := hctx.Agent.smartManager.GetCurrentData()
-	return hctx.SendResponse(data, hctx.RequestID)
+	return hctx.SendResponse(smart.SmartDataResponse{
+		Data:     hctx.Agent.smartManager.GetCurrentData(),
+		Complete: complete,
+	}, hctx.RequestID)
 }
 
 ////////////////////////////////////////////////////////////////////////////

agent/handlers_test.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/fxamacker/cbor/v2"
 	"github.com/henrygd/beszel/internal/common"
+	"github.com/henrygd/beszel/internal/entities/smart"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -17,6 +18,18 @@ type MockHandler struct {
 	handleFunc           func(ctx *HandlerContext) error
 }
 
+func TestNewAgentResponseSmartData(t *testing.T) {
+	response := newAgentResponse(smart.SmartDataResponse{
+		Data: map[string]smart.SmartData{
+			"AAA": {SerialNumber: "AAA"},
+		},
+		Complete: true,
+	}, nil)
+
+	assert.Equal(t, "AAA", response.SmartData["AAA"].SerialNumber)
+	assert.True(t, response.SmartComplete)
+}
+
 func (m *MockHandler) Handle(ctx *HandlerContext) error {
 	if m.handleFunc != nil {
 		return m.handleFunc(ctx)

agent/mdraid_linux.go

@@ -180,8 +180,13 @@ func mdraidSmartStatus(health mdraidHealth) string {
 	if health.degraded > 0 {
 		return "FAILED"
 	}
+	if health.mismatchCnt > 0 {
+		return "WARNING"
+	}
+	// "check" scans for consistency problems without repairing mismatches.
+	// With no mismatches, keep it green while reporting progress attributes.
 	switch syncAction {
-	case "check", "repair":
+	case "repair":
 		return "WARNING"
 	}
 	switch state {

agent/mdraid_linux_test.go

@@ -94,6 +94,18 @@ func TestMdraidSmartStatus(t *testing.T) {
 	if got := mdraidSmartStatus(mdraidHealth{arrayState: "active", syncAction: "recover"}); got != "WARNING" {
 		t.Fatalf("mdraidSmartStatus(recover) = %q, want WARNING", got)
 	}
+	if got := mdraidSmartStatus(mdraidHealth{arrayState: "clean", syncAction: "check"}); got != "PASSED" {
+		t.Fatalf("mdraidSmartStatus(clean+check) = %q, want PASSED", got)
+	}
+	if got := mdraidSmartStatus(mdraidHealth{arrayState: "clean", syncAction: "check", mismatchCnt: 1}); got != "WARNING" {
+		t.Fatalf("mdraidSmartStatus(clean+check+mismatch) = %q, want WARNING", got)
+	}
+	if got := mdraidSmartStatus(mdraidHealth{arrayState: "clean", mismatchCnt: 1}); got != "WARNING" {
+		t.Fatalf("mdraidSmartStatus(clean+mismatch) = %q, want WARNING", got)
+	}
+	if got := mdraidSmartStatus(mdraidHealth{arrayState: "clean", syncAction: "repair"}); got != "WARNING" {
+		t.Fatalf("mdraidSmartStatus(repair) = %q, want WARNING", got)
+	}
 	if got := mdraidSmartStatus(mdraidHealth{arrayState: "clean"}); got != "PASSED" {
 		t.Fatalf("mdraidSmartStatus(clean) = %q, want PASSED", got)
 	}

agent/response.go

@@ -21,6 +21,9 @@ func newAgentResponse(data any, requestID *uint32) common.AgentResponse {
 		response.String = &v
 	case map[string]smart.SmartData:
 		response.SmartData = v
+	case smart.SmartDataResponse:
+		response.SmartData = v.Data
+		response.SmartComplete = v.Complete
 	case systemd.ServiceDetails:
 		response.ServiceInfo = v
 	default:

agent/server.go

@@ -29,9 +29,6 @@ type ServerOptions struct {
 	Keys    []gossh.PublicKey // SSH public keys for authentication
 }
 
-// hubVersions caches hub versions by session ID to avoid repeated parsing.
-var hubVersions map[string]semver.Version
-
 // StartServer starts the SSH server with the provided options.
 // It configures the server with secure defaults, sets up authentication,
 // and begins listening for connections. Returns an error if the server
@@ -99,24 +96,15 @@ func (a *Agent) StartServer(opts ServerOptions) error {
 	return a.server.Serve(ln)
 }
 
-// getHubVersion retrieves and caches the hub version for a given session.
-// It extracts the version from the SSH client version string and caches
-// it to avoid repeated parsing. Returns a zero version if parsing fails.
-func (a *Agent) getHubVersion(sessionId string, sessionCtx ssh.Context) semver.Version {
-	if hubVersions == nil {
-		hubVersions = make(map[string]semver.Version, 1)
-	}
-	hubVersion, ok := hubVersions[sessionId]
-	if ok {
-		return hubVersion
-	}
-	// Extract hub version from SSH client version
+// getHubVersion extracts the hub version from the SSH client version string
+// for a given session. Returns a zero version if parsing fails.
+func (a *Agent) getHubVersion(sessionCtx ssh.Context) semver.Version {
 	clientVersion := sessionCtx.Value(ssh.ContextKeyClientVersion)
 	if versionStr, ok := clientVersion.(string); ok {
-		hubVersion, _ = extractHubVersion(versionStr)
+		hubVersion, _ := extractHubVersion(versionStr)
+		return hubVersion
 	}
-	hubVersions[sessionId] = hubVersion
-	return hubVersion
+	return semver.Version{}
 }
 
 // handleSession handles an incoming SSH session by gathering system statistics
@@ -127,9 +115,8 @@ func (a *Agent) handleSession(s ssh.Session) {
 	a.connectionManager.eventChan <- SSHConnect
 
 	sessionCtx := s.Context()
-	sessionID := sessionCtx.SessionID()
 
-	hubVersion := a.getHubVersion(sessionID, sessionCtx)
+	hubVersion := a.getHubVersion(sessionCtx)
 
 	// Legacy one-shot behavior for older hubs
 	if hubVersion.LT(beszel.MinVersionAgentResponse) {

agent/server_test.go

@@ -404,27 +404,23 @@ func TestGetHubVersion(t *testing.T) {
 		clientVersion: "SSH-2.0-beszel_0.12.0",
 	}
 
-	// Test first call - should extract and cache version
-	version := agent.getHubVersion("test-session-123", mockCtx)
+	// Test first call - should extract version
+	version := agent.getHubVersion(mockCtx)
 	assert.Equal(t, "0.12.0", version.String())
 
-	// Test second call - should return cached version
-	mockCtx.clientVersion = "SSH-2.0-beszel_0.11.0" // Change version but should still return cached
-	version = agent.getHubVersion("test-session-123", mockCtx)
-	assert.Equal(t, "0.12.0", version.String()) // Should still be cached version
-
-	// Test different session - should extract new version
-	version = agent.getHubVersion("different-session", mockCtx)
+	// Test that version reflects the current client version (no stale caching)
+	mockCtx.clientVersion = "SSH-2.0-beszel_0.11.0"
+	version = agent.getHubVersion(mockCtx)
 	assert.Equal(t, "0.11.0", version.String())
 
 	// Test with invalid version string (non-beszel client)
 	mockCtx.clientVersion = "SSH-2.0-OpenSSH_8.0"
-	version = agent.getHubVersion("invalid-session", mockCtx)
+	version = agent.getHubVersion(mockCtx)
 	assert.Equal(t, "0.0.0", version.String()) // Should be empty version for non-beszel clients
 
 	// Test with no client version
 	mockCtx.clientVersion = ""
-	version = agent.getHubVersion("no-version-session", mockCtx)
+	version = agent.getHubVersion(mockCtx)
 	assert.True(t, version.EQ(semver.Version{})) // Should be empty version
 }
 
@@ -501,9 +497,6 @@ func TestWriteToSessionEncoding(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			// Reset the global hubVersions map to ensure clean state for each test
-			hubVersions = nil
-
 			agent, err := NewAgent("")
 			require.NoError(t, err)
 
@@ -585,39 +578,28 @@ func createTestCombinedData() *system.CombinedData {
 	}
 }
 
-func TestHubVersionCaching(t *testing.T) {
-	// Reset the global hubVersions map to ensure clean state
-	hubVersions = nil
-
+// TestGetHubVersionConcurrent guards against a regression of the
+// "concurrent map writes" panic previously caused by a shared, unsynchronized
+// hubVersions cache (see https://github.com/henrygd/beszel/issues/2128).
+// getHubVersion no longer shares mutable state between sessions, so calling
+// it concurrently from many goroutines must be safe under `go test -race`.
+func TestGetHubVersionConcurrent(t *testing.T) {
 	agent, err := NewAgent("")
 	require.NoError(t, err)
 
-	ctx1 := &mockSSHContext{
-		sessionID:     "session1",
-		clientVersion: "SSH-2.0-beszel_0.12.0",
+	const goroutines = 50
+	var wg sync.WaitGroup
+	wg.Add(goroutines)
+	for i := 0; i < goroutines; i++ {
+		go func(i int) {
+			defer wg.Done()
+			ctx := &mockSSHContext{
+				sessionID:     fmt.Sprintf("session-%d", i),
+				clientVersion: "SSH-2.0-beszel_0.12.0",
+			}
+			version := agent.getHubVersion(ctx)
+			assert.Equal(t, "0.12.0", version.String())
+		}(i)
 	}
-	ctx2 := &mockSSHContext{
-		sessionID:     "session2",
-		clientVersion: "SSH-2.0-beszel_0.11.0",
-	}
-
-	// First calls should cache the versions
-	v1 := agent.getHubVersion("session1", ctx1)
-	v2 := agent.getHubVersion("session2", ctx2)
-
-	assert.Equal(t, "0.12.0", v1.String())
-	assert.Equal(t, "0.11.0", v2.String())
-
-	// Verify caching by changing context but keeping same session ID
-	ctx1.clientVersion = "SSH-2.0-beszel_0.10.0"
-	v1Cached := agent.getHubVersion("session1", ctx1)
-	assert.Equal(t, "0.12.0", v1Cached.String()) // Should still be cached version
-
-	// New session should get new version
-	ctx3 := &mockSSHContext{
-		sessionID:     "session3",
-		clientVersion: "SSH-2.0-beszel_0.13.0",
-	}
-	v3 := agent.getHubVersion("session3", ctx3)
-	assert.Equal(t, "0.13.0", v3.String())
+	wg.Wait()
 }

agent/smart.go

@@ -55,6 +55,11 @@ type DeviceInfo struct {
 	typeVerified bool
 	// parserType holds the parser type (nvme, sat, scsi) that last succeeded.
 	parserType string
+	// explicitType reports whether Type came from an explicit ":type" hint in
+	// SMART_DEVICES. Such a type is a deliberate user override and must always be
+	// passed to smartctl via -d, even for scsi/ata where a scan-detected type is
+	// otherwise left off (see smartctlArgs and issue #1345).
+	explicitType bool
 }
 
 // deviceKey is a composite key for a device, used to identify a device uniquely.
@@ -65,8 +70,9 @@ type deviceKey struct {
 
 var errNoValidSmartData = fmt.Errorf("no valid SMART data found") // Error for missing data
 
-// Refresh updates SMART data for all known devices
-func (sm *SmartManager) Refresh(forceScan bool) error {
+// Refresh updates SMART data for all known devices and reports whether every
+// discovered device was collected successfully.
+func (sm *SmartManager) Refresh(forceScan bool) (bool, error) {
 	sm.refreshMutex.Lock()
 	defer sm.refreshMutex.Unlock()
 
@@ -87,7 +93,7 @@ func (sm *SmartManager) Refresh(forceScan bool) error {
 		}
 	}
 
-	return sm.resolveRefreshError(scanErr, collectErr)
+	return scanErr == nil && collectErr == nil, sm.resolveRefreshError(scanErr, collectErr)
 }
 
 // devicesSnapshot returns a copy of the current device slice to avoid iterating
@@ -251,8 +257,9 @@ func (sm *SmartManager) parseConfiguredDevices(config string) ([]*DeviceInfo, er
 		}
 
 		devices = append(devices, &DeviceInfo{
-			Name: name,
-			Type: devType,
+			Name:         name,
+			Type:         devType,
+			explicitType: devType != "",
 		})
 	}
 
@@ -558,7 +565,9 @@ func (sm *SmartManager) smartctlArgs(deviceInfo *DeviceInfo, includeStandby bool
 		deviceType = strings.ToLower(deviceInfo.Type)
 		parserType = strings.ToLower(deviceInfo.parserType)
 		// types sometimes misidentified in scan; see github.com/henrygd/beszel/issues/1345
-		if deviceType != "" && deviceType != "scsi" && deviceType != "ata" {
+		// An explicit SMART_DEVICES ":type" hint is a deliberate override, so always
+		// pass it through; otherwise scsi/ata are left off so smartctl can auto-detect.
+		if deviceType != "" && (deviceInfo.explicitType || (deviceType != "scsi" && deviceType != "ata")) {
 			args = append(args, "-d", deviceInfo.Type)
 		}
 	}
@@ -663,6 +672,9 @@ func mergeDeviceLists(existing, scanned, configured []*DeviceInfo) []*DeviceInfo
 		target.Type = prev.Type
 		target.typeVerified = true
 		target.parserType = prev.parserType
+		if prev.explicitType {
+			target.explicitType = true
+		}
 	}
 
 	// applyConfiguredMetadata updates a matched device with any configured
@@ -676,6 +688,9 @@ func mergeDeviceLists(existing, scanned, configured []*DeviceInfo) []*DeviceInfo
 			existingDev.typeVerified = false
 			existingDev.parserType = normalizeParserType(newType)
 		}
+		if configuredDev.explicitType {
+			existingDev.explicitType = true
+		}
 		if configuredDev.InfoName != "" {
 			existingDev.InfoName = configuredDev.InfoName
 		}

agent/smart_test.go

@@ -392,6 +392,81 @@ func TestSmartctlArgs(t *testing.T) {
 	)
 }
 
+// TestSmartctlArgsExplicitType verifies that an explicit SMART_DEVICES type hint
+// is always passed to smartctl via -d, while a scan-detected scsi/ata type is
+// still left off so smartctl can auto-detect it (see issue #1345).
+func TestSmartctlArgsExplicitType(t *testing.T) {
+	sm := &SmartManager{}
+
+	// Scan-detected scsi: -d is intentionally omitted.
+	scanScsi := &DeviceInfo{Name: "/dev/sda", Type: "scsi"}
+	assert.Equal(t,
+		[]string{"-a", "--json=c", "/dev/sda"},
+		sm.smartctlArgs(scanScsi, false),
+	)
+
+	// Explicit scsi from SMART_DEVICES: -d scsi must be passed.
+	explicitScsi := &DeviceInfo{Name: "/dev/sda", Type: "scsi", explicitType: true}
+	assert.Equal(t,
+		[]string{"-d", "scsi", "-a", "--json=c", "/dev/sda"},
+		sm.smartctlArgs(explicitScsi, false),
+	)
+
+	// Explicit ata from SMART_DEVICES: -d ata must be passed (devstat still added).
+	explicitAta := &DeviceInfo{Name: "/dev/sdb", Type: "ata", explicitType: true}
+	assert.Equal(t,
+		[]string{"-d", "ata", "-a", "--json=c", "-l", "devstat", "/dev/sdb"},
+		sm.smartctlArgs(explicitAta, false),
+	)
+}
+
+// TestSmartDevicesExplicitTypeFlowsToSmartctlArgs is a regression test for
+// issue #2072: an explicit SMART_DEVICES type (e.g. /dev/sda:scsi) must win over
+// a wrong scan-detected type (sat) and be handed to smartctl as -d scsi.
+func TestSmartDevicesExplicitTypeFlowsToSmartctlArgs(t *testing.T) {
+	sm := &SmartManager{}
+
+	configured, err := sm.parseConfiguredDevices("/dev/sda:scsi")
+	require.NoError(t, err)
+	require.Len(t, configured, 1)
+	assert.True(t, configured[0].explicitType)
+
+	// smartctl --scan misreports this USB drive as sat, which fails on it.
+	scanned := []*DeviceInfo{
+		{Name: "/dev/sda", Type: "sat", Protocol: "ATA"},
+	}
+
+	merged := mergeDeviceLists(nil, scanned, configured)
+	require.Len(t, merged, 1)
+
+	device := merged[0]
+	assert.Equal(t, "scsi", device.Type, "configured type should win over scan-detected sat")
+	assert.True(t, device.explicitType, "explicit hint must survive the merge")
+
+	assert.Equal(t,
+		[]string{"-d", "scsi", "-a", "--json=c", "/dev/sda"},
+		sm.smartctlArgs(device, false),
+		"explicit scsi type must be passed to smartctl, not dropped",
+	)
+}
+
+// TestMergeDeviceListsPreservesExplicitTypeAcrossRescan ensures a verified,
+// explicitly-typed device keeps its explicit flag when a later scan re-reports
+// it with a different auto-detected type.
+func TestMergeDeviceListsPreservesExplicitTypeAcrossRescan(t *testing.T) {
+	existing := []*DeviceInfo{
+		{Name: "/dev/sda", Type: "scsi", parserType: "scsi", typeVerified: true, explicitType: true},
+	}
+	scanned := []*DeviceInfo{
+		{Name: "/dev/sda", Type: "sat"},
+	}
+
+	merged := mergeDeviceLists(existing, scanned, nil)
+	require.Len(t, merged, 1)
+	assert.Equal(t, "scsi", merged[0].Type)
+	assert.True(t, merged[0].explicitType, "explicit type flag should survive a rescan")
+}
+
 func TestResolveRefreshError(t *testing.T) {
 	scanErr := errors.New("scan failed")
 	collectErr := errors.New("collect failed")

agent/system.go

@@ -169,21 +169,11 @@ func (a *Agent) getSystemStats(cacheTimeMs uint16) system.Stats {
 
 	// memory
 	if v, err := mem.VirtualMemory(); err == nil {
+		used, cacheBuff, swapUsed := calculateHostMemoryUsage(v, a.memCalc == "htop")
 		// swap
 		systemStats.Swap = utils.BytesToGigabytes(v.SwapTotal)
-		systemStats.SwapUsed = utils.BytesToGigabytes(v.SwapTotal - v.SwapFree - v.SwapCached)
-		// cache + buffers value for default mem calculation
-		// note: gopsutil automatically adds SReclaimable to v.Cached
-		cacheBuff := v.Cached + v.Buffers - v.Shared
-		if cacheBuff <= 0 {
-			cacheBuff = max(v.Total-v.Free-v.Used, 0)
-		}
-		// htop memory calculation overrides (likely outdated as of mid 2025)
-		if a.memCalc == "htop" {
-			// cacheBuff = v.Cached + v.Buffers - v.Shared
-			v.Used = v.Total - (v.Free + cacheBuff)
-			v.UsedPercent = float64(v.Used) / float64(v.Total) * 100.0
-		}
+		systemStats.SwapUsed = utils.BytesToGigabytes(swapUsed)
+		v.Used = used
 		// if a.memCalc == "legacy" {
 		// 	v.Used = v.Total - v.Free - v.Buffers - v.Cached
 		// 	cacheBuff = v.Total - v.Free - v.Used
@@ -193,10 +183,14 @@ func (a *Agent) getSystemStats(cacheTimeMs uint16) system.Stats {
 		if a.zfs {
 			if arcSize, _ := zfs.ARCSize(); arcSize > 0 && arcSize < v.Used {
 				v.Used = v.Used - arcSize
-				v.UsedPercent = float64(v.Used) / float64(v.Total) * 100.0
 				systemStats.MemZfsArc = utils.BytesToGigabytes(arcSize)
 			}
 		}
+		if v.Total > 0 {
+			v.UsedPercent = float64(v.Used) / float64(v.Total) * 100.0
+		} else {
+			v.UsedPercent = 0
+		}
 		systemStats.Mem = utils.BytesToGigabytes(v.Total)
 		systemStats.MemBuffCache = utils.BytesToGigabytes(cacheBuff)
 		systemStats.MemUsed = utils.BytesToGigabytes(v.Used)
@@ -216,6 +210,9 @@ func (a *Agent) getSystemStats(cacheTimeMs uint16) system.Stats {
 	// TODO: maybe refactor to methods on systemStats
 	a.updateTemperatures(&systemStats)
 
+	// fan speeds (Linux-only; sysfs hwmon)
+	a.updateFans(&systemStats)
+
 	// GPU data
 	if a.gpuManager != nil {
 		// reset high gpu percent
@@ -263,6 +260,38 @@ func (a *Agent) getSystemStats(cacheTimeMs uint16) system.Stats {
 	return systemStats
 }
 
+// calculateHostMemoryUsage derives counters defensively because /proc/meminfo may
+// change while gopsutil reads it. Invalid unsigned subtractions saturate at zero.
+func calculateHostMemoryUsage(v *mem.VirtualMemoryStat, htop bool) (used, cacheBuff, swapUsed uint64) {
+	used = v.Used
+	if used > v.Total {
+		used = saturatingSub(v.Total, v.Available)
+	}
+
+	// gopsutil automatically adds SReclaimable to Cached.
+	cacheBuff = min(v.Cached, v.Total)
+	cacheBuff += min(v.Buffers, v.Total-cacheBuff)
+	cacheBuff = saturatingSub(cacheBuff, min(v.Shared, v.Total))
+	if v.Cached == 0 && v.Buffers == 0 {
+		cacheBuff = saturatingSub(v.Total, v.Free, used)
+	}
+	if htop {
+		used = saturatingSub(v.Total, v.Free, cacheBuff)
+	}
+	return used, cacheBuff, saturatingSub(v.SwapTotal, v.SwapFree, v.SwapCached)
+}
+
+// saturatingSub subtracts each value, returning zero on underflow.
+func saturatingSub(value uint64, subtrahends ...uint64) uint64 {
+	for _, subtrahend := range subtrahends {
+		if subtrahend > value {
+			return 0
+		}
+		value -= subtrahend
+	}
+	return value
+}
+
 // getOsPrettyName attempts to get the pretty OS name from /etc/os-release on Linux systems
 func getOsPrettyName() (string, error) {
 	file, err := os.Open("/etc/os-release")

agent/system_test.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/henrygd/beszel/internal/common"
 	"github.com/henrygd/beszel/internal/entities/system"
+	"github.com/shirou/gopsutil/v4/mem"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -33,6 +34,59 @@ func TestGatherStatsDoesNotAttachDetailsToCachedRequests(t *testing.T) {
 	assert.Nil(t, secondResponse.Details)
 }
 
+func TestCalculateHostMemoryUsage(t *testing.T) {
+	tests := []struct {
+		name                      string
+		memory                    mem.VirtualMemoryStat
+		htop                      bool
+		used, cacheBuff, swapUsed uint64
+	}{
+		{
+			name:      "normal",
+			memory:    mem.VirtualMemoryStat{Total: 100, Available: 40, Used: 60, Free: 20, Cached: 25, Buffers: 10, Shared: 5, SwapTotal: 20, SwapFree: 8, SwapCached: 2},
+			used:      60,
+			cacheBuff: 30,
+			swapUsed:  10,
+		},
+		{
+			name:      "inconsistent counters saturate",
+			memory:    mem.VirtualMemoryStat{Total: 100, Available: 110, Used: ^uint64(0) - 9, Free: 90, Cached: 5, Buffers: 10, Shared: 20, SwapTotal: 10, SwapFree: 9, SwapCached: 2},
+			used:      0,
+			cacheBuff: 0,
+			swapUsed:  0,
+		},
+		{
+			name:      "htop subtraction saturates",
+			memory:    mem.VirtualMemoryStat{Total: 100, Available: 20, Used: 80, Free: 90, Cached: 20, Buffers: 5, SwapTotal: 30, SwapFree: 10, SwapCached: 5},
+			htop:      true,
+			used:      0,
+			cacheBuff: 25,
+			swapUsed:  15,
+		},
+		{
+			name:      "zero cache from shared cancellation does not fall back",
+			memory:    mem.VirtualMemoryStat{Total: 100, Used: 60, Free: 10, Cached: 20, Buffers: 10, Shared: 30},
+			used:      60,
+			cacheBuff: 0,
+		},
+		{
+			name:      "absent cache counters use fallback",
+			memory:    mem.VirtualMemoryStat{Total: 100, Used: 60, Free: 10},
+			used:      60,
+			cacheBuff: 30,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			used, cacheBuff, swapUsed := calculateHostMemoryUsage(&tt.memory, tt.htop)
+			assert.Equal(t, tt.used, used)
+			assert.Equal(t, tt.cacheBuff, cacheBuff)
+			assert.Equal(t, tt.swapUsed, swapUsed)
+		})
+	}
+}
+
 func TestUpdateSystemDetailsMarksDetailsDirty(t *testing.T) {
 	agent := &Agent{}
 

go.mod

@@ -1,26 +1,27 @@
 module github.com/henrygd/beszel
 
-go 1.26.1
+go 1.26.6
 
 require (
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/coreos/go-systemd/v22 v22.7.0
-	github.com/ebitengine/purego v0.10.0
-	github.com/fxamacker/cbor/v2 v2.9.0
+	github.com/ebitengine/purego v0.10.2
+	github.com/fxamacker/cbor/v2 v2.9.2
 	github.com/gliderlabs/ssh v0.3.8
 	github.com/google/uuid v1.6.0
-	github.com/lxzan/gws v1.9.1
-	github.com/nicholas-fedor/shoutrrr v0.14.3
+	github.com/lxzan/gws v1.10.1
+	github.com/nicholas-fedor/shoutrrr v0.17.0
 	github.com/pocketbase/dbx v1.12.0
-	github.com/pocketbase/pocketbase v0.36.8
-	github.com/shirou/gopsutil/v4 v4.26.3
+	github.com/pocketbase/pocketbase v0.39.10
+	github.com/shirou/gopsutil/v4 v4.26.7
 	github.com/spf13/cast v1.10.0
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
 	github.com/stretchr/testify v1.11.1
-	golang.org/x/crypto v0.49.0
-	golang.org/x/exp v0.0.0-20260312153236-7ab1446f8b90
-	golang.org/x/sys v0.42.0
+	golang.org/x/crypto v0.55.0
+	golang.org/x/exp v0.0.0-20260811152304-ee035b5b010f
+	golang.org/x/net v0.57.0
+	golang.org/x/sys v0.47.0
 	gopkg.in/yaml.v3 v3.0.1
 	howett.net/plist v1.0.1
 )
@@ -34,35 +35,35 @@ require (
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/eclipse/paho.golang v0.23.0 // indirect
 	github.com/fatih/color v1.19.0 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.13 // indirect
-	github.com/ganigeorgiev/fexpr v0.5.0 // indirect
+	github.com/fsnotify/fsnotify v1.10.1 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.15 // indirect
+	github.com/ganigeorgiev/fexpr v0.6.0 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
-	github.com/go-ozzo/ozzo-validation/v4 v4.3.0 // indirect
 	github.com/go-sql-driver/mysql v1.9.1 // indirect
 	github.com/godbus/dbus/v5 v5.2.2 // indirect
 	github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/klauspost/compress v1.18.5 // indirect
-	github.com/lufia/plan9stats v0.0.0-20260324052639-156f7da3f749 // indirect
-	github.com/mattn/go-colorable v0.1.14 // indirect
-	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/klauspost/compress v1.19.2 // indirect
+	github.com/lufia/plan9stats v0.0.0-20260802145828-341c2f0c90b5 // indirect
+	github.com/mattn/go-colorable v0.1.15 // indirect
+	github.com/mattn/go-isatty v0.0.24 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
+	github.com/pocketbase/ozzo-validation/v4 v4.3.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20260805114148-88456608a4f6 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
-	github.com/tklauser/go-sysconf v0.3.16 // indirect
-	github.com/tklauser/numcpus v0.11.0 // indirect
+	github.com/tklauser/go-sysconf v0.4.0 // indirect
+	github.com/tklauser/numcpus v0.12.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
-	golang.org/x/image v0.38.0 // indirect
-	golang.org/x/net v0.52.0 // indirect
+	golang.org/x/image v0.45.0 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
-	golang.org/x/sync v0.20.0 // indirect
-	golang.org/x/term v0.41.0 // indirect
-	golang.org/x/text v0.35.0 // indirect
-	modernc.org/libc v1.70.0 // indirect
+	golang.org/x/sync v0.22.0 // indirect
+	golang.org/x/term v0.45.0 // indirect
+	golang.org/x/text v0.41.0 // indirect
+	modernc.org/libc v1.74.1 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
-	modernc.org/memory v1.11.0 // indirect
-	modernc.org/sqlite v1.48.0 // indirect
+	modernc.org/memory v1.12.0 // indirect
+	modernc.org/sqlite v1.55.0 // indirect
 )

go.sum

@@ -1,7 +1,7 @@
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
-github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1Xbatp0=
-github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
+github.com/Masterminds/semver/v3 v3.5.0 h1:kQceYJfbupGfZOKZQg0kou0DgAKhzDg2NZPAwZ/2OOE=
+github.com/Masterminds/semver/v3 v3.5.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
 github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
 github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
 github.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496/go.mod h1:oGkLhpf+kjZl6xBf758TQhh5XrAeiJv/7FRz/2spLIg=
@@ -21,29 +21,29 @@ github.com/domodwyer/mailyak/v3 v3.6.2 h1:x3tGMsyFhTCaxp6ycgR0FE/bu5QiNp+hetUuCO
 github.com/domodwyer/mailyak/v3 v3.6.2/go.mod h1:lOm/u9CyCVWHeaAmHIdF4RiKVxKUT/H5XX10lIKAL6c=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/ebitengine/purego v0.10.0 h1:QIw4xfpWT6GWTzaW5XEKy3HXoqrJGx1ijYHzTF0/ISU=
-github.com/ebitengine/purego v0.10.0/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/ebitengine/purego v0.10.2 h1:W809HbnvzAxgdm+aOvlSekrM16wGCdT/e76+9tS7gzE=
+github.com/ebitengine/purego v0.10.2/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/eclipse/paho.golang v0.23.0 h1:KHgl2wz6EJo7cMBmkuhpt7C576vP+kpPv7jjvSyR6Mk=
 github.com/eclipse/paho.golang v0.23.0/go.mod h1:nQRhTkoZv8EAiNs5UU0/WdQIx2NrnWUpL9nsGJTQN04=
 github.com/fatih/color v1.19.0 h1:Zp3PiM21/9Ld6FzSKyL5c/BULoe/ONr9KlbYVOfG8+w=
 github.com/fatih/color v1.19.0/go.mod h1:zNk67I0ZUT1bEGsSGyCZYZNrHuTkJJB+r6Q9VuMi0LE=
 github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
-github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM=
-github.com/fxamacker/cbor/v2 v2.9.0/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
-github.com/gabriel-vasile/mimetype v1.4.13 h1:46nXokslUBsAJE/wMsp5gtO500a4F3Nkz9Ufpk2AcUM=
-github.com/gabriel-vasile/mimetype v1.4.13/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s=
-github.com/ganigeorgiev/fexpr v0.5.0 h1:XA9JxtTE/Xm+g/JFI6RfZEHSiQlk+1glLvRK1Lpv/Tk=
-github.com/ganigeorgiev/fexpr v0.5.0/go.mod h1:RyGiGqmeXhEQ6+mlGdnUleLHgtzzu/VGO2WtJkF5drE=
+github.com/fsnotify/fsnotify v1.10.1 h1:b0/UzAf9yR5rhf3RPm9gf3ehBPpf0oZKIjtpKrx59Ho=
+github.com/fsnotify/fsnotify v1.10.1/go.mod h1:TLheqan6HD6GBK6PrDWyDPBaEV8LspOxvPSjC+bVfgo=
+github.com/fxamacker/cbor/v2 v2.9.2 h1:X4Ksno9+x3cz0TZv69ec1hxP/+tymuR8PXQJyDwfh78=
+github.com/fxamacker/cbor/v2 v2.9.2/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
+github.com/gabriel-vasile/mimetype v1.4.15 h1:05iP/CYtZ/w455R/KZM6rZ5ieAdh99UPtd+d3YzLmaI=
+github.com/gabriel-vasile/mimetype v1.4.15/go.mod h1:azpTcoLcDZRNgFou5j+APrqQx9HqVPWa6ijYQIIVswQ=
+github.com/ganigeorgiev/fexpr v0.6.0 h1:Fza3O/QMBKEudUvxV862qe6GjxM60GJjjKytdp+VQus=
+github.com/ganigeorgiev/fexpr v0.6.0/go.mod h1:RyGiGqmeXhEQ6+mlGdnUleLHgtzzu/VGO2WtJkF5drE=
 github.com/gliderlabs/ssh v0.3.8 h1:a4YXD1V7xMF9g5nTkdfnja3Sxy1PVDCj1Zg4Wb8vY6c=
 github.com/gliderlabs/ssh v0.3.8/go.mod h1:xYoytBv1sV0aL3CavoDuJIQNURXkkfPA/wxQ1pL1fAU=
-github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
-github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.4 h1:tG4xh9yMsRCAiodLVTxyrkzSZ9+o0L1Kg/+cPVcbP/8=
+github.com/go-logr/logr v1.4.4/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
 github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
-github.com/go-ozzo/ozzo-validation/v4 v4.3.0 h1:byhDUpfEwjsVQb1vBunvIjh2BHQ9ead57VkAEY4V+Es=
-github.com/go-ozzo/ozzo-validation/v4 v4.3.0/go.mod h1:2NKgrcHl3z6cJs+3Oo940FPRiTzuqKbvfrL2RxCj6Ew=
 github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
 github.com/go-sql-driver/mysql v1.9.1 h1:FrjNGn/BsJQjVRuSa8CBrM5BWA9BWoXXat3KrtSb/iI=
 github.com/go-sql-driver/mysql v1.9.1/go.mod h1:qn46aNg1333BRMNU69Lq93t8du/dwxI64Gl8i5p1WMU=
@@ -56,8 +56,8 @@ github.com/golang-jwt/jwt/v5 v5.3.1/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArs
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
-github.com/google/pprof v0.0.0-20260302011040-a15ffb7f9dcc h1:VBbFa1lDYWEeV5FZKUiYKYT0VxCp9twUmmaq9eb8sXw=
-github.com/google/pprof v0.0.0-20260302011040-a15ffb7f9dcc/go.mod h1:MxpfABSjhmINe3F1It9d+8exIHFvUqtLIRCdOGNXqiI=
+github.com/google/pprof v0.0.0-20260802141513-ef3492d7dac3 h1:LMLX+LgTNWpfvCBdFebv6EsYotImrt/Ppc5cXIriCSo=
+github.com/google/pprof v0.0.0-20260802141513-ef3492d7dac3/go.mod h1:jl5iWTm0/hd5PjEYEOuwAJ57L/CibdZfrqZ5XA5GrCk=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
@@ -66,47 +66,49 @@ github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs
 github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
-github.com/jarcoal/httpmock v1.4.1 h1:0Ju+VCFuARfFlhVXFc2HxlcQkfB+Xq12/EotHko+x2A=
-github.com/jarcoal/httpmock v1.4.1/go.mod h1:ftW1xULwo+j0R0JJkJIIi7UKigZUXCLLanykgjwBXL0=
+github.com/jarcoal/httpmock v1.4.2 h1:dKwiP/9zITCPfBLsDn3kchbSOu16JrnxtVEmL0fPRcI=
+github.com/jarcoal/httpmock v1.4.2/go.mod h1:ftW1xULwo+j0R0JJkJIIi7UKigZUXCLLanykgjwBXL0=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
-github.com/klauspost/compress v1.18.5 h1:/h1gH5Ce+VWNLSWqPzOVn6XBO+vJbCNGvjoaGBFW2IE=
-github.com/klauspost/compress v1.18.5/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
+github.com/klauspost/compress v1.19.2 h1:hMRETovs/pu/dVWN7zIT1PGG8t509MwT6bO7XSi26R8=
+github.com/klauspost/compress v1.19.2/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/lufia/plan9stats v0.0.0-20260324052639-156f7da3f749 h1:Qj3hTcdWH8uMZDI41HNuTuJN525C7NBrbtH5kSO6fPk=
-github.com/lufia/plan9stats v0.0.0-20260324052639-156f7da3f749/go.mod h1:autxFIvghDt3jPTLoqZ9OZ7s9qTGNAWmYCjVFWPX/zg=
-github.com/lxzan/gws v1.9.1 h1:4lbIp4cW0hOLP3ejFHR/uWRy741AURx7oKkNNi2OT9o=
-github.com/lxzan/gws v1.9.1/go.mod h1:gXHSCPmTGryWJ4icuqy8Yho32E4YIMHH0fkDRYJRbdc=
-github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
-github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
-github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
-github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/lufia/plan9stats v0.0.0-20260802145828-341c2f0c90b5 h1:eveIIGn4BGM3qknO74omf6HYr30/exH+eVUTuAgwjZ0=
+github.com/lufia/plan9stats v0.0.0-20260802145828-341c2f0c90b5/go.mod h1:autxFIvghDt3jPTLoqZ9OZ7s9qTGNAWmYCjVFWPX/zg=
+github.com/lxzan/gws v1.10.1 h1:1xG+tDOV0lgDeVPf0wNT74u3cn0K3LpcavRrTPTrMwQ=
+github.com/lxzan/gws v1.10.1/go.mod h1:gXHSCPmTGryWJ4icuqy8Yho32E4YIMHH0fkDRYJRbdc=
+github.com/mattn/go-colorable v0.1.15 h1:+u9SLTRGnXv73cEsnsmoZBom+dMU88B2M0aDcWy0/jY=
+github.com/mattn/go-colorable v0.1.15/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
+github.com/mattn/go-isatty v0.0.24 h1:tGZZoVgT/KiqK1c8ocVLeDS8BSWMRd47J3Lbz7vsReI=
+github.com/mattn/go-isatty v0.0.24/go.mod h1:nMCL3Zebbrt45jsMDgnfIwz6ydEQApk5oEI3HqDio6A=
 github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
 github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
-github.com/nicholas-fedor/shoutrrr v0.14.3 h1:aBX2iw9a7jl5wfHd3bi9LnS5ucoYIy6KcLH9XVF+gig=
-github.com/nicholas-fedor/shoutrrr v0.14.3/go.mod h1:U7IywBkLpBV7rgn8iLbQ9/LklJG1gm24bFv5cXXsDKs=
-github.com/onsi/ginkgo/v2 v2.28.1 h1:S4hj+HbZp40fNKuLUQOYLDgZLwNUVn19N3Atb98NCyI=
-github.com/onsi/ginkgo/v2 v2.28.1/go.mod h1:CLtbVInNckU3/+gC8LzkGUb9oF+e8W8TdUsxPwvdOgE=
-github.com/onsi/gomega v1.39.1 h1:1IJLAad4zjPn2PsnhH70V4DKRFlrCzGBNrNaru+Vf28=
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@@ -120,51 +122,51 @@ github.com/stretchr/objx v0.5.3/go.mod h1:rDQraq+vQZU7Fde9LOZLr8Tax6zZvy4kuNKF+Q
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@@ -175,30 +177,30 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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-modernc.org/libc v1.70.0/go.mod h1:OVmxFGP1CI/Z4L3E0Q3Mf1PDE0BucwMkcXjjLntvHJo=
+modernc.org/libc v1.74.1 h1:bdR4VTKFMC4966QSNZ05XLGI/VwzVa2kTUX51Dm0riQ=
+modernc.org/libc v1.74.1/go.mod h1:uH4t5bOx3G3g9Xcmj10YKlTcVISlRDwv8VoQJG9n8Os=
 modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
 modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
-modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
-modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
-modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8=
-modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/memory v1.12.0 h1:twkmYNkGXCvtYWzoux02jtK6eovjZbdI0uHFUYp6kuU=
+modernc.org/memory v1.12.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
+modernc.org/opt v0.2.0 h1:tGyef5ApycA7FSEOMraay9SaTk5zmbx7Tu+cJs4QKZg=
+modernc.org/opt v0.2.0/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
 modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
 modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
-modernc.org/sqlite v1.48.0 h1:ElZyLop3Q2mHYk5IFPPXADejZrlHu7APbpB0sF78bq4=
-modernc.org/sqlite v1.48.0/go.mod h1:hWjRO6Tj/5Ik8ieqxQybiEOUXy0NJFNp2tpvVpKlvig=
+modernc.org/sqlite v1.55.0 h1:hIFh0MCH0rGinQ/4KYb5/UbCkRkb+UP+OkLCVWa5MTM=
+modernc.org/sqlite v1.55.0/go.mod h1:4ntCLuNmnH8+GNqjka1wNg7KJd5/Hi5FYp8K+XQ7GZw=
 modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
 modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
 modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=

internal/alerts/alerts_quiet_hours_test.go

@@ -322,8 +322,9 @@ func TestAlertSilencedMultiUser(t *testing.T) {
 }
 
 func TestAlertSilencedWithActualAlert(t *testing.T) {
+	hub, user := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		// Create a system

internal/alerts/alerts_status_test.go

@@ -29,8 +29,9 @@ func setStatusAlertEmail(t *testing.T, hub core.App, userID, email string) {
 }
 
 func TestStatusAlerts(t *testing.T) {
+	hub, user := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		systems, err := beszelTests.CreateSystems(hub, 4, user.Id, "paused")
@@ -234,8 +235,9 @@ func TestHandleStatusAlertsDoesNotSendRecoveryWhileDownIsOnlyPending(t *testing.
 }
 
 func TestStatusAlertTimerCancellationPreventsBoundaryDelivery(t *testing.T) {
+	hub, user := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		userSettings, err := hub.FindFirstRecordByFilter("user_settings", "user={:user}", map[string]any{"user": user.Id})
@@ -336,8 +338,9 @@ func TestStatusAlertDownFiresAfterDelayExpires(t *testing.T) {
 }
 
 func TestStatusAlertMultipleUsersRespectDifferentMinutes(t *testing.T) {
+	hub, user1 := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user1 := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		setStatusAlertEmail(t, hub, user1.Id, "user1@example.com")
@@ -423,8 +426,9 @@ func TestStatusAlertMultipleUsersRespectDifferentMinutes(t *testing.T) {
 }
 
 func TestStatusAlertMultipleUsersRecoveryBetweenMinutesOnlyAlertsEarlierUser(t *testing.T) {
+	hub, user1 := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user1 := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		setStatusAlertEmail(t, hub, user1.Id, "user1@example.com")
@@ -816,8 +820,9 @@ func TestResolveStatusAlerts(t *testing.T) {
 }
 
 func TestAlertsHistoryStatus(t *testing.T) {
+	hub, user := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		// Create a system
@@ -882,8 +887,9 @@ func TestAlertsHistoryStatus(t *testing.T) {
 }
 
 func TestStatusAlertClearedBeforeSend(t *testing.T) {
+	hub, user := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		// Create a system

internal/alerts/alerts_system_test.go

@@ -95,11 +95,10 @@ func waitForSystemAlert(d time.Duration) {
 
 func testOneMinuteSystemAlert[T any](t *testing.T, alertName string, threshold float64, setValue systemAlertValueSetter[T], triggerValue, resolveValue T) {
 	t.Helper()
+	fixture := newSystemAlertTestFixture(t, alertName, 1, threshold)
+	defer fixture.cleanup()
 
 	synctest.Test(t, func(t *testing.T) {
-		fixture := newSystemAlertTestFixture(t, alertName, 1, threshold)
-		defer fixture.cleanup()
-
 		submitValue(fixture, t, triggerValue, setValue)
 		waitForSystemAlert(time.Second)
 
@@ -118,11 +117,10 @@ func testOneMinuteSystemAlert[T any](t *testing.T, alertName string, threshold f
 
 func testMultiMinuteSystemAlert[T any](t *testing.T, alertName string, threshold float64, min int, setValue systemAlertValueSetter[T], baselineValue, triggerValue, resolveValue T) {
 	t.Helper()
+	fixture := newSystemAlertTestFixture(t, alertName, min, threshold)
+	defer fixture.cleanup()
 
 	synctest.Test(t, func(t *testing.T) {
-		fixture := newSystemAlertTestFixture(t, alertName, min, threshold)
-		defer fixture.cleanup()
-
 		submitValue(fixture, t, baselineValue, setValue)
 		waitForSystemAlert(time.Minute + time.Second)
 		fixture.assertTriggered(t, false, "Alert should not be triggered yet")

internal/alerts/alerts_test.go

@@ -15,8 +15,9 @@ import (
 )
 
 func TestAlertsHistory(t *testing.T) {
+	hub, user := beszelTests.GetHubWithUser(t)
+
 	synctest.Test(t, func(t *testing.T) {
-		hub, user := beszelTests.GetHubWithUser(t)
 		defer hub.Cleanup()
 
 		// Create systems and alerts

internal/common/common-ws.go

@@ -42,7 +42,8 @@ type AgentResponse struct {
 	SmartData   map[string]smart.SmartData `cbor:"5,keyasint,omitempty,omitzero"` // Legacy (<= 0.17)
 	ServiceInfo systemd.ServiceDetails     `cbor:"6,keyasint,omitempty,omitzero"` // Legacy (<= 0.17)
 	// Data is the generic response payload for new endpoints (0.18+)
-	Data cbor.RawMessage `cbor:"7,keyasint,omitempty,omitzero"`
+	Data          cbor.RawMessage `cbor:"7,keyasint,omitempty,omitzero"`
+	SmartComplete bool            `cbor:"8,keyasint,omitempty,omitzero"`
 }
 
 type FingerprintRequest struct {

internal/entities/container/container.go

@@ -52,6 +52,17 @@ type HostInfo struct {
 }
 
 func (s *ApiStats) CalculateCpuPercentLinux(prevCpuContainer uint64, prevCpuSystem uint64) float64 {
+	// A counter can read lower than the stored previous value when a stats
+	// response is processed after a newer one for the same container, or when an
+	// accounting counter resets. Unsigned subtraction wraps to ~2^64 instead of
+	// going negative: on the container counter that surfaces as an absurd
+	// percentage the caller rejects, discarding the whole sample; on the system
+	// counter it inflates the divisor and silently reports near-zero CPU.
+	// Treat either direction as a new baseline.
+	if s.CPUStats.CPUUsage.TotalUsage < prevCpuContainer || s.CPUStats.SystemUsage < prevCpuSystem {
+		return 0.0
+	}
+
 	cpuDelta := s.CPUStats.CPUUsage.TotalUsage - prevCpuContainer
 	systemDelta := s.CPUStats.SystemUsage - prevCpuSystem
 
@@ -70,7 +81,11 @@ func (s *ApiStats) CalculateCpuPercentWindows(prevCpuUsage uint64, prevRead time
 	possIntervals /= 100                // Convert to number of 100ns intervals
 	possIntervals *= uint64(s.NumProcs) // Multiple by the number of processors
 
-	// Intervals used
+	// Intervals used. Same rollback guard as the Linux path: an out-of-order or
+	// reset counter would wrap the subtraction to ~2^64.
+	if s.CPUStats.CPUUsage.TotalUsage < prevCpuUsage {
+		return 0.0
+	}
 	intervalsUsed := s.CPUStats.CPUUsage.TotalUsage - prevCpuUsage
 
 	// Percentage avoiding divide-by-zero

internal/entities/smart/smart.go

@@ -494,7 +494,7 @@ type SmartInfoForNvme struct {
 	FirmwareVersion string           `json:"firmware_version"`
 	// NVMePCIVendor                 NVMePCIVendor                 `json:"nvme_pci_vendor"`
 	// NVMeIEEEOUIIdentifier         uint32                        `json:"nvme_ieee_oui_identifier"`
-	NVMeTotalCapacity             uint64                        `json:"nvme_total_capacity"`
+	NVMeTotalCapacity uint64 `json:"nvme_total_capacity"`
 	// NVMeUnallocatedCapacity       uint64                        `json:"nvme_unallocated_capacity"`
 	// NVMeControllerID              uint16                        `json:"nvme_controller_id"`
 	// NVMeVersion                   VersionStringInfo             `json:"nvme_version"`
@@ -531,6 +531,13 @@ type SmartData struct {
 	Attributes      []*SmartAttribute `json:"a,omitempty" cbor:"9,keyasint,omitempty"`
 }
 
+// SmartDataResponse contains the collected data and whether every discovered
+// device was collected. Older agents omit Complete, so hubs must not prune from it.
+type SmartDataResponse struct {
+	Data     map[string]SmartData `json:"data" cbor:"0,keyasint"`
+	Complete bool                 `json:"complete" cbor:"1,keyasint,omitempty"` // Whether every discovered device was collected
+}
+
 type SmartAttribute struct {
 	ID         uint16 `json:"id,omitempty" cbor:"0,keyasint,omitempty"`
 	Name       string `json:"n" cbor:"1,keyasint"`

internal/entities/system/system.go

@@ -33,6 +33,7 @@ type Stats struct {
 	MaxNetworkSent float64             `json:"nsm,omitempty" cbor:"-"`
 	MaxNetworkRecv float64             `json:"nrm,omitempty" cbor:"-"`
 	Temperatures   map[string]float64  `json:"t,omitempty" cbor:"20,keyasint,omitempty"`
+	Fans           map[string]uint16   `json:"f,omitempty" cbor:"36,keyasint,omitempty"`
 	ExtraFs        map[string]*FsStats `json:"efs,omitempty" cbor:"21,keyasint,omitempty"`
 	GPUData        map[string]GPUData  `json:"g,omitempty" cbor:"22,keyasint,omitempty"`
 	// LoadAvg1       float64             `json:"l1,omitempty" cbor:"23,keyasint,omitempty"`

internal/ghupdate/checksum.go

@@ -0,0 +1,43 @@
+package ghupdate
+
+import (
+	"bytes"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+)
+
+func verifyAssetChecksum(path, digest string) error {
+	algorithm, expectedHex, ok := strings.Cut(digest, ":")
+	if !ok || algorithm == "" || expectedHex == "" {
+		return fmt.Errorf("invalid release digest %q", digest)
+	}
+	if !strings.EqualFold(algorithm, "sha256") {
+		return fmt.Errorf("unsupported release digest algorithm %q", algorithm)
+	}
+
+	expected, err := hex.DecodeString(expectedHex)
+	if err != nil || len(expected) != sha256.Size {
+		return fmt.Errorf("invalid SHA-256 release digest %q", digest)
+	}
+
+	file, err := os.Open(path)
+	if err != nil {
+		return fmt.Errorf("failed to open release for checksum verification: %w", err)
+	}
+	defer file.Close()
+
+	hash := sha256.New()
+	if _, err := io.Copy(hash, file); err != nil {
+		return fmt.Errorf("failed to calculate release checksum: %w", err)
+	}
+	actual := hash.Sum(nil)
+	if !bytes.Equal(actual, expected) {
+		return fmt.Errorf("release checksum mismatch: expected %s, got %s", expectedHex, hex.EncodeToString(actual))
+	}
+
+	return nil
+}

internal/ghupdate/checksum_test.go

@@ -0,0 +1,57 @@
+package ghupdate
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestVerifyAssetChecksum(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "asset")
+	if err := os.WriteFile(path, []byte("beszel release asset"), 0600); err != nil {
+		t.Fatal(err)
+	}
+
+	tests := []struct {
+		name    string
+		digest  string
+		wantErr string
+	}{
+		{
+			name:   "valid",
+			digest: "sha256:2316f86af2c3af2f0ef595ad5359cdd19b329d4829a5425460ca9ffbf92671ab",
+		},
+		{
+			name:    "mismatch",
+			digest:  "sha256:0316f86af2c3af2f0ef595ad5359cdd19b329d4829a5425460ca9ffbf92671ab",
+			wantErr: "checksum mismatch",
+		},
+		{
+			name:    "malformed",
+			digest:  "sha256:not-a-checksum",
+			wantErr: "invalid SHA-256",
+		},
+		{
+			name:    "missing",
+			wantErr: "invalid release digest",
+		},
+		{
+			name:    "unsupported algorithm",
+			digest:  "sha512:2316f86af2c3af2f0ef595ad5359cdd19b329d4829a5425460ca9ffbf92671ab",
+			wantErr: "unsupported",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := verifyAssetChecksum(path, tt.digest)
+			if tt.wantErr == "" && err != nil {
+				t.Fatalf("expected checksum to verify, got %v", err)
+			}
+			if tt.wantErr != "" && (err == nil || !strings.Contains(err.Error(), tt.wantErr)) {
+				t.Fatalf("expected error containing %q, got %v", tt.wantErr, err)
+			}
+		})
+	}
+}

internal/ghupdate/extract.go

@@ -46,18 +46,23 @@ func extractTarGz(srcPath, destDir string) error {
 			return err
 		}
 
+		path, err := archivePath(destDir, header.Name)
+		if err != nil {
+			return err
+		}
+
 		if header.Typeflag == tar.TypeDir {
-			if err := os.MkdirAll(filepath.Join(destDir, header.Name), 0755); err != nil {
+			if err := os.MkdirAll(path, 0755); err != nil {
 				return err
 			}
 			continue
 		}
 
-		if err := os.MkdirAll(filepath.Dir(filepath.Join(destDir, header.Name)), 0755); err != nil {
+		if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
 			return err
 		}
 
-		outFile, err := os.Create(filepath.Join(destDir, header.Name))
+		outFile, err := os.Create(path)
 		if err != nil {
 			return err
 		}
@@ -72,6 +77,14 @@ func extractTarGz(srcPath, destDir string) error {
 	return nil
 }
 
+// archivePath returns a path within destDir, rejecting path traversal entries.
+func archivePath(destDir, name string) (string, error) {
+	if !filepath.IsLocal(name) {
+		return "", fmt.Errorf("invalid file path: %q", name)
+	}
+	return filepath.Join(destDir, name), nil
+}
+
 // extractZip extracts the zip archive at "src" to "dest".
 //
 // Note that only dirs and regular files will be extracted.
@@ -84,9 +97,6 @@ func extractZip(src, dest string) error {
 	}
 	defer zr.Close()
 
-	// normalize dest path to check later for Zip Slip
-	dest = filepath.Clean(dest) + string(os.PathSeparator)
-
 	for _, f := range zr.File {
 		err := extractFile(f, dest)
 		if err != nil {
@@ -100,11 +110,9 @@ func extractZip(src, dest string) error {
 // extractFile extracts the provided zipFile into "basePath/zipFileName" path,
 // creating all the necessary path directories.
 func extractFile(zipFile *zip.File, basePath string) error {
-	path := filepath.Join(basePath, zipFile.Name)
-
-	// check for Zip Slip
-	if !strings.HasPrefix(path, basePath) {
-		return fmt.Errorf("invalid file path: %s", path)
+	path, err := archivePath(basePath, zipFile.Name)
+	if err != nil {
+		return err
 	}
 
 	r, err := zipFile.Open()

internal/ghupdate/ghupdate.go

@@ -135,21 +135,33 @@ func (p *updater) update() (updated bool, err error) {
 		return false, err
 	}
 
-	releaseDir := filepath.Join(p.config.DataDir, ".beszel_update")
+	if err := os.MkdirAll(p.config.DataDir, 0755); err != nil {
+		return false, fmt.Errorf("failed to create update data directory: %w", err)
+	}
+	releaseDir, err := os.MkdirTemp(p.config.DataDir, ".beszel_update-")
+	if err != nil {
+		return false, fmt.Errorf("failed to create update directory: %w", err)
+	}
 	defer os.RemoveAll(releaseDir)
 
 	ColorPrintf(ColorYellow, "Downloading %s...", asset.Name)
 
 	// download the release asset
-	assetPath := filepath.Join(releaseDir, asset.Name)
+	assetPath, err := archivePath(releaseDir, asset.Name)
+	if err != nil {
+		return false, err
+	}
 	if err := downloadFile(p.config.Context, p.config.HttpClient, asset.DownloadUrl, assetPath, p.config.UseMirror); err != nil {
 		return false, err
 	}
+	ColorPrint(ColorYellow, "Verifying checksum...")
+	if err := verifyAssetChecksum(assetPath, asset.Digest); err != nil {
+		return false, err
+	}
 
 	ColorPrintf(ColorYellow, "Extracting %s...", asset.Name)
 
-	extractDir := filepath.Join(releaseDir, "extracted_"+asset.Name)
-	defer os.RemoveAll(extractDir)
+	extractDir := filepath.Join(releaseDir, "extracted")
 
 	// Extract the archive (automatically detects format)
 	if err := extract(assetPath, extractDir); err != nil {

internal/ghupdate/ghupdate_test.go

@@ -1,6 +1,9 @@
 package ghupdate
 
 import (
+	"archive/tar"
+	"compress/gzip"
+	"os"
 	"path/filepath"
 	"testing"
 )
@@ -43,3 +46,59 @@ func TestExtractFailure(t *testing.T) {
 		t.Fatal("Expected Extract to fail due to missing tar.gz file")
 	}
 }
+
+func TestArchivePath(t *testing.T) {
+	destDir := t.TempDir()
+	for _, name := range []string{
+		"",
+		"..",
+		filepath.Join("..", "file"),
+		filepath.Join("dir", "..", "..", "file"),
+		string(os.PathSeparator) + filepath.Join("tmp", "file"),
+	} {
+		if _, err := archivePath(destDir, name); err == nil {
+			t.Errorf("expected %q to be rejected", name)
+		}
+	}
+
+	name := filepath.Join("dir", "file")
+	if path, err := archivePath(destDir, name); err != nil || path != filepath.Join(destDir, name) {
+		t.Errorf("archivePath(%q) = %q, %v", name, path, err)
+	}
+}
+
+func TestExtractTarGzRejectsPathTraversal(t *testing.T) {
+	testDir := t.TempDir()
+	archivePath := filepath.Join(testDir, "malicious.tar.gz")
+	destDir := filepath.Join(testDir, "extract")
+	escapedPath := filepath.Join(testDir, "escaped")
+
+	archive, err := os.Create(archivePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	gz := gzip.NewWriter(archive)
+	tw := tar.NewWriter(gz)
+	if err := tw.WriteHeader(&tar.Header{Name: "../escaped", Mode: 0600, Size: 1}); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := tw.Write([]byte("x")); err != nil {
+		t.Fatal(err)
+	}
+	if err := tw.Close(); err != nil {
+		t.Fatal(err)
+	}
+	if err := gz.Close(); err != nil {
+		t.Fatal(err)
+	}
+	if err := archive.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := extract(archivePath, destDir); err == nil {
+		t.Fatal("expected path traversal archive to be rejected")
+	}
+	if _, err := os.Stat(escapedPath); !os.IsNotExist(err) {
+		t.Fatalf("path traversal wrote %s", escapedPath)
+	}
+}

internal/ghupdate/release.go

@@ -8,6 +8,7 @@ import (
 type releaseAsset struct {
 	Name        string `json:"name"`
 	DownloadUrl string `json:"browser_download_url"`
+	Digest      string `json:"digest"`
 	Id          int    `json:"id"`
 	Size        int    `json:"size"`
 }

internal/hub/agent_connect.go

@@ -317,6 +317,9 @@ func getRealIP(r *http.Request) string {
 	if ip := r.Header.Get("CF-Connecting-IP"); ip != "" {
 		return ip
 	}
+	if ip := r.Header.Get("X-Real-IP"); ip != "" {
+		return ip
+	}
 	if ip := r.Header.Get("X-Forwarded-For"); ip != "" {
 		// X-Forwarded-For can contain a comma-separated list: "client_ip, proxy1, proxy2"
 		// Take the first one

internal/hub/agent_connect_test.go

@@ -1796,6 +1796,24 @@ func TestGetRealIP(t *testing.T) {
 			remoteAddr: "127.0.0.1:12345",
 			expectedIP: "192.168.1.8",
 		},
+		{
+			name:       "X-Real-IP header",
+			headers:    map[string]string{"X-Real-IP": "10.8.0.4"},
+			remoteAddr: "172.21.0.1:12345",
+			expectedIP: "10.8.0.4",
+		},
+		{
+			name:       "X-Real-IP takes precedence over X-Forwarded-For",
+			headers:    map[string]string{"X-Real-IP": "10.8.0.4", "X-Forwarded-For": "10.8.0.5"},
+			remoteAddr: "172.21.0.1:12345",
+			expectedIP: "10.8.0.4",
+		},
+		{
+			name:       "CF-Connecting-IP takes precedence over X-Real-IP",
+			headers:    map[string]string{"CF-Connecting-IP": "1.2.3.4", "X-Real-IP": "10.8.0.4"},
+			remoteAddr: "172.21.0.1:12345",
+			expectedIP: "1.2.3.4",
+		},
 	}
 
 	for _, tc := range testCases {

internal/hub/config/config_test.go

@@ -64,7 +64,7 @@ func createConfigTestFingerprint(app core.App, systemID, token, fingerprint stri
 
 // TestConfigSyncWithTokens tests the config.SyncSystems function with various token scenarios
 func TestConfigSyncWithTokens(t *testing.T) {
-	testHub, err := tests.NewTestHub()
+	testHub, err := tests.NewTestHub(t.TempDir())
 	require.NoError(t, err)
 	defer testHub.Cleanup()
 

internal/hub/systems/ssh_timeout_test.go

@@ -0,0 +1,56 @@
+//go:build testing
+
+package systems
+
+import (
+	"errors"
+	"testing"
+	"testing/synctest"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// TestRunWithTimeout covers the guard added for issue #2041: the per-system SSH
+// data exchange must never block the updater indefinitely on a dead connection.
+func TestRunWithTimeout(t *testing.T) {
+	t.Run("returns the operation result when it completes before the timeout", func(t *testing.T) {
+		synctest.Test(t, func(t *testing.T) {
+			wantErr := errors.New("boom")
+			onTimeoutCalled := false
+
+			retry, err := runWithTimeout(10*time.Second, func() (bool, error) {
+				return true, wantErr
+			}, func() { onTimeoutCalled = true })
+
+			assert.True(t, retry, "should return the operation's retry value")
+			assert.Equal(t, wantErr, err, "should return the operation's error")
+			assert.False(t, onTimeoutCalled, "onTimeout must not fire when the op completes")
+		})
+	})
+
+	t.Run("times out and tears down the connection when the op blocks", func(t *testing.T) {
+		synctest.Test(t, func(t *testing.T) {
+			// unblock simulates a half-open connection: the op is stuck reading a
+			// response that never arrives until the connection is torn down.
+			unblock := make(chan struct{})
+			onTimeoutCalled := false
+			start := time.Now()
+
+			retry, err := runWithTimeout(5*time.Second, func() (bool, error) {
+				<-unblock
+				return false, nil
+			}, func() {
+				onTimeoutCalled = true
+				close(unblock) // tearing down the connection releases the blocked read
+			})
+
+			assert.Equal(t, 5*time.Second, time.Since(start), "should return exactly at the timeout")
+			assert.True(t, retry, "a timeout should be retryable so the next tick re-dials")
+			assert.Error(t, err, "a timeout must surface an error so the system is set down")
+			assert.True(t, onTimeoutCalled, "onTimeout must fire so the dead connection is closed")
+
+			synctest.Wait() // ensure the released op goroutine exits cleanly
+		})
+	})
+}

internal/hub/systems/system.go

@@ -388,6 +388,7 @@ func (sys *System) setDown(originalError error) error {
 	if originalError != nil {
 		sys.manager.hub.Logger().Error("System down", "system", record.GetString("name"), "err", originalError)
 	}
+	sys.detailsFetched.Store(false)
 	record.Set("status", down)
 	return sys.manager.hub.SaveNoValidate(record)
 }
@@ -531,11 +532,16 @@ func (sys *System) FetchSystemdInfoFromAgent(serviceName string) (systemd.Servic
 	return result, err
 }
 
-// FetchSmartDataFromAgent fetches SMART data from the agent
-func (sys *System) FetchSmartDataFromAgent() (map[string]smart.SmartData, error) {
+// FetchSmartDataFromAgent fetches SMART data from the agent.
+func (sys *System) FetchSmartDataFromAgent() (smart.SmartDataResponse, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
 	defer cancel()
-	var result map[string]smart.SmartData
+	if sys.agentVersion.LT(beszel.MinVersionAgentResponse) {
+		var data map[string]smart.SmartData
+		err := sys.request(ctx, common.GetSmartData, nil, &data)
+		return smart.SmartDataResponse{Data: data}, err
+	}
+	var result smart.SmartDataResponse
 	err := sys.request(ctx, common.GetSmartData, nil, &result)
 	return result, err
 }
@@ -623,10 +629,17 @@ func (sys *System) runSSHOperation(timeout time.Duration, retries int, operation
 			continue
 		}
 
-		retry, opErr := func() (bool, error) {
+		// Bound the whole operation. A half-open TCP connection (a dead peer that
+		// never sends RST/FIN) or a wedged agent that accepts the session but
+		// never writes a response would otherwise block the read forever. Because
+		// StartUpdater runs update() synchronously on its ticker, that stalls the
+		// per-system updater indefinitely with no error and no re-dial until the
+		// hub is restarted (issue #2041). On timeout we tear down the connection
+		// so the blocked read unwinds and the system is re-dialed on the next tick.
+		retry, opErr := runWithTimeout(sshOperationTimeout, func() (bool, error) {
 			defer session.Close()
 			return operation(session)
-		}()
+		}, sys.closeSSHConnection)
 
 		if opErr == nil {
 			return nil
@@ -645,6 +658,43 @@ func (sys *System) runSSHOperation(timeout time.Duration, retries int, operation
 	return fmt.Errorf("ssh operation failed")
 }
 
+// sshOperationTimeout bounds a single SSH data exchange (send request, read
+// response, wait for the remote command to exit). It is more generous than the
+// session-creation timeout to tolerate briefly slow agents, but is kept well
+// under the collection interval so a stalled connection is detected and
+// re-dialed within one cycle (see issue #2041).
+const sshOperationTimeout = 20 * time.Second
+
+// runWithTimeout runs op in a goroutine and returns its result, or, if op does
+// not finish within timeout, calls onTimeout (used to tear down the connection
+// so a blocked op can unwind) and returns a retryable timeout error. This
+// guarantees the caller can never block indefinitely on a dead SSH connection.
+func runWithTimeout(timeout time.Duration, op func() (bool, error), onTimeout func()) (retry bool, err error) {
+	type opResult struct {
+		retry bool
+		err   error
+	}
+	// Buffered so the op goroutine never leaks even when we return on timeout.
+	done := make(chan opResult, 1)
+	go func() {
+		r, e := op()
+		done <- opResult{retry: r, err: e}
+	}()
+
+	timer := time.NewTimer(timeout)
+	defer timer.Stop()
+
+	select {
+	case res := <-done:
+		return res.retry, res.err
+	case <-timer.C:
+		if onTimeout != nil {
+			onTimeout()
+		}
+		return true, fmt.Errorf("ssh operation timed out after %s", timeout)
+	}
+}
+
 // createSSHClient creates a new SSH client for the system
 func (s *System) createSSHClient() error {
 	if s.manager.sshConfig == nil {
@@ -660,7 +710,7 @@ func (s *System) createSSHClient() error {
 		host = net.JoinHostPort(host, s.Port)
 	}
 	var err error
-	s.client, err = ssh.Dial(network, host, s.manager.sshConfig)
+	s.client, err = dialSSHWithKeepAlive(network, host, s.manager.sshConfig)
 	if err != nil {
 		return err
 	}
@@ -669,6 +719,34 @@ func (s *System) createSSHClient() error {
 	return nil
 }
 
+// sshKeepAliveInterval is the TCP keep-alive idle interval for SSH connections
+// to agents. Enabling OS-level keep-alives lets the hub eventually detect a
+// dead peer on an otherwise idle connection instead of trusting it forever.
+// This is a backstop for genuine network death; an application-level wedge
+// (agent process hung while its kernel keeps ACKing) is caught by the
+// per-operation timeout in runSSHOperation instead (see issue #2041).
+const sshKeepAliveInterval = 30 * time.Second
+
+// dialSSHWithKeepAlive dials an SSH connection like ssh.Dial, but enables TCP
+// keep-alive on the underlying connection so half-open connections are
+// eventually detected by the operating system.
+func dialSSHWithKeepAlive(network, addr string, config *ssh.ClientConfig) (*ssh.Client, error) {
+	dialer := net.Dialer{
+		Timeout:   config.Timeout,
+		KeepAlive: sshKeepAliveInterval,
+	}
+	conn, err := dialer.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	sshConn, chans, reqs, err := ssh.NewClientConn(conn, addr, config)
+	if err != nil {
+		_ = conn.Close()
+		return nil, err
+	}
+	return ssh.NewClient(sshConn, chans, reqs), nil
+}
+
 // createSessionWithTimeout creates a new SSH session with a timeout to avoid hanging
 // in case of network issues
 func (sys *System) createSessionWithTimeout(timeout time.Duration) (*ssh.Session, error) {

internal/hub/systems/system_smart.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/henrygd/beszel/internal/entities/smart"
+	"github.com/pocketbase/dbx"
 	"github.com/pocketbase/pocketbase/core"
 )
 
@@ -17,13 +18,13 @@ type smartFetchState struct {
 
 // FetchAndSaveSmartDevices fetches SMART data from the agent and saves it to the database
 func (sys *System) FetchAndSaveSmartDevices() error {
-	smartData, err := sys.FetchSmartDataFromAgent()
+	response, err := sys.FetchSmartDataFromAgent()
 	if err != nil {
 		sys.recordSmartFetchResult(err, 0)
 		return err
 	}
-	err = sys.saveSmartDevices(smartData)
-	sys.recordSmartFetchResult(err, len(smartData))
+	err = sys.saveSmartDevices(response.Data, response.Complete)
+	sys.recordSmartFetchResult(err, len(response.Data))
 	return err
 }
 
@@ -61,8 +62,9 @@ func (sys *System) smartFetchInterval() time.Duration {
 	return time.Hour
 }
 
-// saveSmartDevices saves SMART device data to the smart_devices collection
-func (sys *System) saveSmartDevices(smartData map[string]smart.SmartData) error {
+// saveSmartDevices saves SMART device data and, after a complete refresh,
+// removes rows for devices that are no longer reported.
+func (sys *System) saveSmartDevices(smartData map[string]smart.SmartData, complete bool) error {
 	if len(smartData) == 0 {
 		return nil
 	}
@@ -73,20 +75,49 @@ func (sys *System) saveSmartDevices(smartData map[string]smart.SmartData) error
 		return err
 	}
 
-	for deviceKey, device := range smartData {
-		if err := sys.upsertSmartDeviceRecord(collection, deviceKey, device); err != nil {
-			return err
-		}
+	currentIDs := make(map[string]struct{}, len(smartData))
+	for deviceKey := range smartData {
+		currentIDs[makeStableHashId(sys.Id, deviceKey)] = struct{}{}
 	}
 
-	return nil
+	err = hub.RunInTransaction(func(txApp core.App) error {
+		if complete {
+			existing, err := txApp.FindRecordsByFilter(
+				collection,
+				"system = {:system}",
+				"",
+				0,
+				0,
+				dbx.Params{"system": sys.Id},
+			)
+			if err != nil {
+				return err
+			}
+			for _, record := range existing {
+				if _, ok := currentIDs[record.Id]; ok {
+					continue
+				}
+				if err := txApp.Delete(record); err != nil {
+					return err
+				}
+			}
+		}
+
+		for deviceKey, device := range smartData {
+			if err := sys.upsertSmartDeviceRecord(txApp, collection, deviceKey, device); err != nil {
+				return err
+			}
+		}
+
+		return nil
+	})
+	return err
 }
 
-func (sys *System) upsertSmartDeviceRecord(collection *core.Collection, deviceKey string, device smart.SmartData) error {
-	hub := sys.manager.hub
+func (sys *System) upsertSmartDeviceRecord(app core.App, collection *core.Collection, deviceKey string, device smart.SmartData) error {
 	recordID := makeStableHashId(sys.Id, deviceKey)
 
-	record, err := hub.FindRecordById(collection, recordID)
+	record, err := app.FindRecordById(collection, recordID)
 	if err != nil {
 		if !errors.Is(err, sql.ErrNoRows) {
 			return err
@@ -114,7 +145,7 @@ func (sys *System) upsertSmartDeviceRecord(collection *core.Collection, deviceKe
 	record.Set("cycles", powerCycles)
 	record.Set("attributes", device.Attributes)
 
-	return hub.SaveNoValidate(record)
+	return app.SaveNoValidate(record)
 }
 
 // extractPowerMetrics extracts power on hours and power cycles from SMART attributes

internal/hub/systems/system_smart_test.go

@@ -7,10 +7,53 @@ import (
 	"testing"
 	"time"
 
+	"github.com/henrygd/beszel/internal/entities/smart"
+	esystem "github.com/henrygd/beszel/internal/entities/system"
 	"github.com/henrygd/beszel/internal/hub/expirymap"
+	_ "github.com/henrygd/beszel/internal/migrations"
+
+	"github.com/pocketbase/pocketbase/core"
+	pbtests "github.com/pocketbase/pocketbase/tests"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"golang.org/x/crypto/ssh"
 )
 
+// stubHub implements hubLike using a plain pocketbase test app, so
+// smart-device DB tests can run in-package without an import cycle to
+// internal/hub (which imports this package).
+type stubHub struct{ core.App }
+
+func (stubHub) GetSSHKey(dataDir string) (ssh.Signer, error) { return nil, nil }
+func (stubHub) HandleSystemAlerts(systemRecord *core.Record, data *esystem.CombinedData) error {
+	return nil
+}
+func (stubHub) HandleStatusAlerts(status string, systemRecord *core.Record) error { return nil }
+func (stubHub) CancelPendingStatusAlerts(systemID string)                         {}
+
+// newTestSystemWithHub creates a System backed by a real (temp) database, along
+// with a matching "systems" record, for tests that need to exercise DB reads/writes.
+func newTestSystemWithHub(t *testing.T) (*System, *pbtests.TestApp) {
+	t.Helper()
+	testApp, err := pbtests.NewTestApp(t.TempDir())
+	require.NoError(t, err)
+	t.Cleanup(testApp.Cleanup)
+
+	sm := &SystemManager{hub: stubHub{testApp}, smartFetchMap: expirymap.New[smartFetchState](time.Hour)}
+	t.Cleanup(sm.smartFetchMap.StopCleaner)
+
+	col, err := testApp.FindCachedCollectionByNameOrId("systems")
+	require.NoError(t, err)
+	systemRecord := core.NewRecord(col)
+	systemRecord.Set("name", "test-system")
+	systemRecord.Set("host", "127.0.0.1")
+	systemRecord.Set("port", "45876")
+	require.NoError(t, testApp.SaveNoValidate(systemRecord))
+
+	sys := &System{Id: systemRecord.Id, manager: sm}
+	return sys, testApp
+}
+
 func TestRecordSmartFetchResult(t *testing.T) {
 	sm := &SystemManager{smartFetchMap: expirymap.New[smartFetchState](time.Hour)}
 	t.Cleanup(sm.smartFetchMap.StopCleaner)
@@ -92,3 +135,95 @@ func TestResetFailedSmartFetchState(t *testing.T) {
 	_, ok = sm.smartFetchMap.GetOk("system-1")
 	assert.True(t, ok, "expected successful smart fetch state to be preserved")
 }
+
+// countSmartDeviceRecords returns the number of smart_devices rows for the given system.
+func countSmartDeviceRecords(t *testing.T, app core.App, systemID string) []*core.Record {
+	t.Helper()
+	records, err := app.FindAllRecords("smart_devices", nil)
+	require.NoError(t, err)
+	var forSystem []*core.Record
+	for _, r := range records {
+		if r.GetString("system") == systemID {
+			forSystem = append(forSystem, r)
+		}
+	}
+	return forSystem
+}
+
+func TestSaveSmartDevices_RemovesStaleDevices(t *testing.T) {
+	sys, testApp := newTestSystemWithHub(t)
+
+	// first fetch reports two devices: sda (serial AAA) and sdb (serial BBB)
+	err := sys.saveSmartDevices(map[string]smart.SmartData{
+		"AAA": {SerialNumber: "AAA", DiskName: "sda", ModelName: "Disk A"},
+		"BBB": {SerialNumber: "BBB", DiskName: "sdb", ModelName: "Disk B"},
+	}, true)
+	require.NoError(t, err)
+
+	records := countSmartDeviceRecords(t, testApp, sys.Id)
+	require.Len(t, records, 2, "expected both devices to be saved")
+
+	var recordA *core.Record
+	for _, r := range records {
+		if r.GetString("serial") == "AAA" {
+			recordA = r
+		}
+	}
+	require.NotNil(t, recordA, "expected to find device AAA")
+	originalID := recordA.Id
+
+	deleteEvents := 0
+	testApp.OnRecordAfterDeleteSuccess("smart_devices").BindFunc(func(e *core.RecordEvent) error {
+		deleteEvents++
+		return e.Next()
+	})
+
+	// A complete refresh confirms that BBB is gone, so remove it through
+	// PocketBase and notify realtime subscribers.
+	err = sys.saveSmartDevices(map[string]smart.SmartData{
+		"AAA": {SerialNumber: "AAA", DiskName: "sda", ModelName: "Disk A", Temperature: 42},
+	}, true)
+	require.NoError(t, err)
+
+	records = countSmartDeviceRecords(t, testApp, sys.Id)
+	require.Len(t, records, 1, "expected stale device BBB to be removed")
+	assert.Equal(t, "AAA", records[0].GetString("serial"))
+	assert.Equal(t, originalID, records[0].Id, "expected existing device to be updated in place, not recreated")
+	assert.EqualValues(t, 42, records[0].GetInt("temp"))
+	assert.Equal(t, 1, deleteEvents, "expected PocketBase delete hooks to run")
+}
+
+func TestSaveSmartDevices_IncompleteDataDoesNotRemoveDevices(t *testing.T) {
+	sys, testApp := newTestSystemWithHub(t)
+
+	require.NoError(t, sys.saveSmartDevices(map[string]smart.SmartData{
+		"AAA": {SerialNumber: "AAA", DiskName: "sda"},
+		"BBB": {SerialNumber: "BBB", DiskName: "sdb"},
+	}, true))
+
+	// AAA was collected but BBB failed. The response is useful for updating AAA,
+	// but it is not authoritative enough to remove BBB.
+	require.NoError(t, sys.saveSmartDevices(map[string]smart.SmartData{
+		"AAA": {SerialNumber: "AAA", DiskName: "sda", Temperature: 42},
+	}, false))
+
+	assert.Len(t, countSmartDeviceRecords(t, testApp, sys.Id), 2)
+	recordA, err := testApp.FindRecordById("smart_devices", makeStableHashId(sys.Id, "AAA"))
+	require.NoError(t, err)
+	assert.EqualValues(t, 42, recordA.GetInt("temp"))
+}
+
+func TestSaveSmartDevices_EmptyDataIsNoop(t *testing.T) {
+	sys, testApp := newTestSystemWithHub(t)
+
+	err := sys.saveSmartDevices(map[string]smart.SmartData{
+		"AAA": {SerialNumber: "AAA", DiskName: "sda"},
+	}, true)
+	require.NoError(t, err)
+
+	err = sys.saveSmartDevices(map[string]smart.SmartData{}, true)
+	require.NoError(t, err)
+
+	records := countSmartDeviceRecords(t, testApp, sys.Id)
+	assert.Len(t, records, 1, "empty fetch result should not delete existing devices")
+}

internal/hub/transport/transport.go

@@ -88,15 +88,23 @@ func unmarshalLegacyResponse(resp common.AgentResponse, action common.WebSocketA
 		*d = *resp.String
 		return nil
 	case common.GetSmartData:
-		d, ok := dest.(*map[string]smart.SmartData)
-		if !ok {
+		switch d := dest.(type) {
+		case *map[string]smart.SmartData:
+			if resp.SmartData == nil {
+				return errors.New("no SMART data in response")
+			}
+			*d = resp.SmartData
+			return nil
+		case *smart.SmartDataResponse:
+			if resp.SmartData == nil {
+				return errors.New("no SMART data in response")
+			}
+			d.Data = resp.SmartData
+			d.Complete = resp.SmartComplete
+			return nil
+		default:
 			return fmt.Errorf("unexpected dest type for GetSmartData: %T", dest)
 		}
-		if resp.SmartData == nil {
-			return errors.New("no SMART data in response")
-		}
-		*d = resp.SmartData
-		return nil
 	case common.GetSystemdInfo:
 		d, ok := dest.(*systemd.ServiceDetails)
 		if !ok {

internal/hub/transport/transport_test.go

@@ -0,0 +1,33 @@
+package transport
+
+import (
+	"testing"
+
+	"github.com/henrygd/beszel/internal/common"
+	"github.com/henrygd/beszel/internal/entities/smart"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUnmarshalSmartDataResponse(t *testing.T) {
+	for _, test := range []struct {
+		name     string
+		complete bool
+	}{
+		{name: "complete response", complete: true},
+		{name: "older agent defaults to incomplete", complete: false},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			response := common.AgentResponse{
+				SmartData: map[string]smart.SmartData{
+					"AAA": {SerialNumber: "AAA"},
+				},
+				SmartComplete: test.complete,
+			}
+			var result smart.SmartDataResponse
+			require.NoError(t, UnmarshalResponse(response, common.GetSmartData, &result))
+			assert.Equal(t, test.complete, result.Complete)
+			assert.Equal(t, "AAA", result.Data["AAA"].SerialNumber)
+		})
+	}
+}

internal/records/records.go

@@ -3,7 +3,7 @@ package records
 
 import (
 	"encoding/json"
-	"log"
+	"log/slog"
 	"math"
 	"time"
 
@@ -68,15 +68,18 @@ func (rm *RecordManager) CreateLongerRecords() {
 		},
 	}
 	// wrap the operations in a transaction
+	// Pocketbase cron does not handle errors, log them here.
 	rm.app.RunInTransaction(func(txApp core.App) error {
 		var err error
 		collections := [2]*core.Collection{}
 		collections[0], err = txApp.FindCachedCollectionByNameOrId("system_stats")
 		if err != nil {
+			slog.Error("Error finding cached collection using system stats:", "err", err)
 			return err
 		}
 		collections[1], err = txApp.FindCachedCollectionByNameOrId("container_stats")
 		if err != nil {
+			slog.Error("Error finding cached collection using container stats:", "err", err)
 			return err
 		}
 		var systems RecordIds
@@ -142,7 +145,7 @@ func (rm *RecordManager) CreateLongerRecords() {
 						longerRecord.Set("stats", rm.AverageContainerStats(db, recordIds))
 					}
 					if err := txApp.SaveNoValidate(longerRecord); err != nil {
-						log.Println("failed to save longer record", "err", err)
+						slog.Error("failed to save longer record", "err", err)
 					}
 				}
 			}
@@ -188,6 +191,8 @@ func AverageSystemStatsSlice(records []system.Stats) system.Stats {
 	// accumulate cpu breakdown [user, system, iowait, steal, idle]
 	var cpuBreakdownSums []float64
 	tempCount := float64(0)
+	var fanSums map[string]uint64
+	fanCount := uint64(0)
 
 	// Accumulate totals
 	for i := range records {
@@ -279,6 +284,17 @@ func AverageSystemStatsSlice(records []system.Stats) system.Stats {
 			}
 		}
 
+		// Accumulate fan speeds
+		if stats.Fans != nil {
+			if fanSums == nil {
+				fanSums = make(map[string]uint64, len(stats.Fans))
+			}
+			fanCount++
+			for key, value := range stats.Fans {
+				fanSums[key] += uint64(value)
+			}
+		}
+
 		// Accumulate extra filesystem stats
 		if stats.ExtraFs != nil {
 			if sum.ExtraFs == nil {
@@ -384,6 +400,14 @@ func AverageSystemStatsSlice(records []system.Stats) system.Stats {
 		}
 	}
 
+	// Average fan speeds
+	if fanSums != nil && fanCount > 0 {
+		sum.Fans = make(map[string]uint16, len(fanSums))
+		for key, value := range fanSums {
+			sum.Fans[key] = uint16(value / fanCount)
+		}
+	}
+
 	// Average extra filesystem stats
 	if sum.ExtraFs != nil {
 		for key := range sum.ExtraFs {

internal/records/records_averaging_test.go

@@ -291,6 +291,28 @@ func TestAverageSystemStatsSlice_Temperatures(t *testing.T) {
 	assert.Equal(t, 80.0, result.Temperatures["gpu"])
 }
 
+// Tests that fan speeds are averaged and records without fan data are excluded.
+func TestAverageSystemStatsSlice_Fans(t *testing.T) {
+	input := []system.Stats{
+		{
+			Fans: map[string]uint16{"cpu": 60_000, "case": 1_000},
+		},
+		{
+			Fans: map[string]uint16{"cpu": 50_000, "case": 2_000},
+		},
+		{
+			// No fan data - should not affect fan averaging
+			Cpu: 30.0,
+		},
+	}
+
+	result := records.AverageSystemStatsSlice(input)
+
+	require.NotNil(t, result.Fans)
+	assert.Equal(t, uint16(55_000), result.Fans["cpu"])
+	assert.Equal(t, uint16(1_500), result.Fans["case"])
+}
+
 func TestAverageSystemStatsSlice_NetworkInterfaces(t *testing.T) {
 	input := []system.Stats{
 		{

internal/records/records_deletion.go

@@ -12,6 +12,7 @@ import (
 
 // Delete old records
 func (rm *RecordManager) DeleteOldRecords() {
+	// Pocketbase cron does not handle errors, log them here.
 	rm.app.RunInTransaction(func(txApp core.App) error {
 		err := deleteOldSystemStats(txApp)
 		if err != nil {

internal/site/src/components/login/auth-form.tsx

@@ -175,8 +175,8 @@ export function UserAuthForm({
 	 */
 	function redirectToOauthProvider(provider: AuthProviderInfo) {
 		const url = new URL(provider.authURL)
-		// url.searchParams.set("redirect_uri", `${window.location.origin}${basePath}`)
-		sessionStorage.setItem("provider", JSON.stringify(provider))
+		url.searchParams.set("redirect_uri", `${window.location.origin}${basePath}`)
+		localStorage.setItem("provider", JSON.stringify(provider))
 		window.location.href = url.toString()
 	}
 
@@ -186,12 +186,13 @@ export function UserAuthForm({
 		const code = params.get("code")
 		if (code) {
 			const state = params.get("state")
-			const provider: AuthProviderInfo = JSON.parse(sessionStorage.getItem("provider") ?? "{}")
+			const provider: AuthProviderInfo = JSON.parse(localStorage.getItem("provider") ?? "{}")
+		    localStorage.removeItem("provider")
+			window.history.replaceState({}, "", window.location.pathname)
 			if (!state || provider.state !== state) {
 				showLoginFaliedToast()
 			} else {
 				setIsOauthLoading(true)
-				window.history.replaceState({}, "", window.location.pathname)
 				pb.collection("users")
 					.authWithOAuth2Code(provider.name, code, provider.codeVerifier, `${window.location.origin}${basePath}`)
 					.then(() => $authenticated.set(pb.authStore.isValid))
@@ -285,7 +286,7 @@ export function UserAuthForm({
 									{errors?.passwordConfirm && <p className="px-1 text-xs text-red-600">{errors.passwordConfirm}</p>}
 								</div>
 							)}
-							<div className="sr-only">
+							<div className="sr-only" aria-hidden="true">
 								{/* honeypot */}
 								<label htmlFor="website">Website</label>
 								<input
@@ -293,6 +294,7 @@ export function UserAuthForm({
 									type="text"
 									name="website"
 									tabIndex={-1}
+									readOnly
 									autoComplete="off"
 									data-1p-ignore
 									data-lpignore="true"

internal/site/src/components/routes/settings/tokens-fingerprints.tsx

@@ -139,6 +139,7 @@ const SectionUniversalToken = memo(() => {
 	const [isLoading, setIsLoading] = useState(true)
 	const [checked, setChecked] = useState(false)
 	const [isPermanent, setIsPermanent] = useState(false)
+	const publicKey = $publicKey.get()
 
 	async function updateToken(enable: number = -1, permanent: number = -1) {
 		// enable: 0 for disable, 1 for enable, -1 (unset) for get current state
@@ -191,6 +192,25 @@ const SectionUniversalToken = memo(() => {
 							<ActionsButtonUniversalToken token={token} checked={checked} />
 						</div>
 
+						{checked && (
+							<div className="flex items-center gap-4 min-w-0 border-t pt-3">
+								<span className="text-sm text-muted-foreground whitespace-nowrap">
+									<Trans>Public key</Trans>
+								</span>
+								<div className="min-w-0 flex-1 truncate">
+									<span className="text-sm text-primary font-mono">{publicKey}</span>
+								</div>
+								<Button
+									variant="ghost"
+									size="icon"
+									onClick={() => copyToClipboard(publicKey)}
+									title={t`Copy public key`}
+								>
+									<CopyIcon className="w-4" />
+								</Button>
+							</div>
+						)}
+
 						{checked && (
 							<div className="border-t pt-3">
 								<div className="text-sm font-medium">

internal/site/src/components/routes/system.tsx

@@ -9,7 +9,7 @@ import { CpuChart, ContainerCpuChart } from "./system/charts/cpu-charts"
 import { MemoryChart, ContainerMemoryChart, SwapChart } from "./system/charts/memory-charts"
 import { RootDiskCharts, ExtraFsCharts } from "./system/charts/disk-charts"
 import { BandwidthChart, ContainerNetworkChart } from "./system/charts/network-charts"
-import { TemperatureChart, BatteryChart } from "./system/charts/sensor-charts"
+import { TemperatureChart, FanChart, BatteryChart } from "./system/charts/sensor-charts"
 import { GpuPowerChart, GpuDetailCharts } from "./system/charts/gpu-charts"
 import { LazyContainersTable, LazySmartTable, LazySystemdTable } from "./system/lazy-tables"
 import { LoadAverageChart } from "./system/charts/load-average-chart"
@@ -123,6 +123,8 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 
 					<TemperatureChart {...coreProps} />
 
+					<FanChart {...coreProps} />
+
 					<BatteryChart {...coreProps} />
 
 					{hasGpuPowerData && <GpuPowerChart chartData={chartData} grid={grid} dataEmpty={dataEmpty} />}
@@ -188,6 +190,7 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 						<LoadAverageChart chartData={chartData} grid={grid} dataEmpty={dataEmpty} />
 						<BandwidthChart {...coreProps} systemStats={systemStats} />
 						<TemperatureChart {...coreProps} setPageBottomExtraMargin={setPageBottomExtraMargin} />
+						<FanChart {...coreProps} />
 						<BatteryChart {...coreProps} />
 						<SwapChart chartData={chartData} grid={grid} dataEmpty={dataEmpty} systemStats={systemStats} />
 						{pageBottomExtraMargin > 0 && <div style={{ marginBottom: pageBottomExtraMargin }}></div>}

internal/site/src/components/routes/system/charts/memory-charts.tsx

@@ -108,7 +108,7 @@ export function ContainerMemoryChart({
 				dataPoints={dataPoints}
 				tickFormatter={(val) => {
 					const { value, unit } = formatBytes(val, false, Unit.Bytes, true)
-					return `${toFixedFloat(value, val >= 10 ? 0 : 1)} ${unit}`
+					return `${toFixedFloat(value, value >= 10 ? 0 : 1)} ${unit}`
 				}}
 				contentFormatter={(item) => {
 					const { value, unit } = formatBytes(item.value, false, Unit.Bytes, true)

internal/site/src/components/routes/system/charts/sensor-charts.tsx

@@ -1,7 +1,7 @@
 import { t } from "@lingui/core/macro"
 import AreaChartDefault from "@/components/charts/area-chart"
 import { batteryStateTranslations } from "@/lib/i18n"
-import { $temperatureFilter, $userSettings } from "@/lib/stores"
+import { $fanFilter, $temperatureFilter, $userSettings } from "@/lib/stores"
 import { cn, decimalString, formatTemperature, toFixedFloat } from "@/lib/utils"
 import type { ChartData, SystemStatsRecord } from "@/types"
 import { ChartCard, FilterBar } from "../chart-card"
@@ -209,3 +209,102 @@ export function TemperatureChart({
 		</div>
 	)
 }
+
+export function FanChart({
+	chartData,
+	grid,
+	dataEmpty,
+}: {
+	chartData: ChartData
+	grid: boolean
+	dataEmpty: boolean
+}) {
+	const showFanChart = chartData.systemStats.at(-1)?.stats.f
+
+	const filter = useStore($fanFilter)
+
+	const statsRef = useRef(chartData.systemStats)
+	statsRef.current = chartData.systemStats
+
+	// Stable key derived from current sensor names (sorted) so the memo only
+	// recomputes when the set of fans changes — not on every data point.
+	let sensorNamesKey = ""
+	for (let i = chartData.systemStats.length - 1; i >= 0; i--) {
+		const f = chartData.systemStats[i].stats?.f
+		if (f) {
+			sensorNamesKey = Object.keys(f).sort().join("\0")
+			break
+		}
+	}
+
+	const { colorMap, dataKeys, sortedKeys } = useMemo(() => {
+		const stats = statsRef.current
+		const sums = {} as Record<string, number>
+		for (const data of stats) {
+			const f = data.stats?.f
+			if (!f) continue
+			for (const key of Object.keys(f)) {
+				sums[key] = (sums[key] ?? 0) + f[key]
+			}
+		}
+		const sorted = Object.keys(sums).sort((a, b) => sums[b] - sums[a])
+		const colorMap = {} as Record<string, string>
+		const dataKeys = {} as Record<string, (d: SystemStatsRecord) => number | undefined>
+		for (let i = 0; i < sorted.length; i++) {
+			const key = sorted[i]
+			colorMap[key] = `hsl(${((i * 360) / sorted.length) % 360}, 60%, 55%)`
+			dataKeys[key] = (d: SystemStatsRecord) => d.stats?.f?.[key]
+		}
+		return { colorMap, dataKeys, sortedKeys: sorted }
+	}, [sensorNamesKey])
+
+	const dataPoints = useMemo(() => {
+		return sortedKeys.map((key) => {
+			const filterTerms = filter
+				? filter
+						.toLowerCase()
+						.split(" ")
+						.filter((term) => term.length > 0)
+				: []
+			const filtered = filterTerms.length > 0 && !filterTerms.some((term) => key.toLowerCase().includes(term))
+			const strokeOpacity = filtered ? 0.1 : 1
+			return {
+				label: key,
+				dataKey: dataKeys[key],
+				color: colorMap[key],
+				strokeOpacity,
+				activeDot: !filtered,
+			}
+		})
+	}, [sortedKeys, filter, dataKeys, colorMap])
+
+	if (!showFanChart) {
+		return null
+	}
+
+	const legend = dataPoints.length < 12
+
+	return (
+		<div className={cn("odd:last-of-type:col-span-full", { "col-span-full": !grid })}>
+			<ChartCard
+				empty={dataEmpty}
+				grid={grid}
+				title={t`Fans`}
+				description={t`System fan speeds (RPM)`}
+				cornerEl={<FilterBar store={$fanFilter} />}
+				legend={legend}
+			>
+				<LineChartDefault
+					chartData={chartData}
+					itemSorter={(a, b) => b.value - a.value}
+					domain={["auto", "auto"]}
+					legend={legend}
+					tickFormatter={(val) => `${toFixedFloat(val, 0)}`}
+					contentFormatter={(item) => `${decimalString(item.value, 0)} RPM`}
+					dataPoints={dataPoints}
+					filter={filter}
+				></LineChartDefault>
+			</ChartCard>
+		</div>
+	)
+}

internal/site/src/components/systems-table/systems-table-columns.tsx

@@ -470,7 +470,7 @@ function TableCellWithMeter(info: CellContext<SystemRecord, unknown>) {
 			STATUS_COLORS.down
 	)
 	return (
-		<div className="flex gap-2 items-center tabular-nums tracking-tight w-full">
+		<div className="flex gap-2 items-center tabular-nums tracking-tight w-full min-w-0">
 			<span className="min-w-8 shrink-0">{decimalString(val, val >= 10 ? 1 : 2)}%</span>
 			<span className="flex-1 min-w-8 grid bg-muted h-[1em] rounded-sm overflow-hidden">
 				<span className={meterClass} style={{ width: `${val}%` }}></span>

internal/site/src/components/systems-table/systems-table.tsx

@@ -477,7 +477,7 @@ const SystemCard = memo(
 						</div>
 					</CardHeader>
 					<CardContent className="text-sm px-5 pt-3.5 pb-4">
-						<div className="grid gap-2.5" style={{ gridTemplateColumns: "24px minmax(80px, max-content) 1fr" }}>
+						<div className="grid gap-2.5" style={{ gridTemplateColumns: "24px minmax(80px, max-content) minmax(0, 1fr)" }}>
 							{table.getAllColumns().map((column) => {
 								if (!column.getIsVisible() || column.id === "system" || column.id === "actions") return null
 								const cell = row.getAllCells().find((cell) => cell.column.id === column.id)
@@ -496,7 +496,7 @@ const SystemCard = memo(
 										<div key={`${column.id}-label`} className="flex items-center text-muted-foreground pr-3">
 											{name()}:
 										</div>
-										<div key={`${column.id}-value`} className="flex items-center">
+										<div key={`${column.id}-value`} className="flex items-center min-w-0">
 											{flexRender(cell.column.columnDef.cell, cell.getContext())}
 										</div>
 									</>

internal/site/src/lib/stores.ts

@@ -64,6 +64,9 @@ export const $containerFilter = atom("")
 /** Temperature chart filter */
 export const $temperatureFilter = atom("")
 
+/** Fan-speed chart filter */
+export const $fanFilter = atom("")
+
 /** Fallback copy to clipboard dialog content */
 export const $copyContent = atom("")
 

internal/site/src/types.d.ts

@@ -143,6 +143,8 @@ export interface SystemStats {
 	bm?: [number, number]
 	/** temperatures */
 	t?: Record<string, number>
+	/** fan speeds (RPM) — keyed by `<chip>_<label-or-fan-idx>` */
+	f?: Record<string, number>
 	/** extra filesystems */
 	efs?: Record<string, ExtraFsStats>
 	/** GPU data */
@@ -208,7 +210,7 @@ interface ContainerStats {
 	n: string
 	/** cpu percent */
 	c: number
-	/** memory used (gb) */
+	/** memory used (mb) */
 	m: number
 	// network sent (mb)
 	ns?: number

readme.md

@@ -16,7 +16,7 @@ It has a friendly web interface, simple configuration, and is ready to use out o
 - **Lightweight**: Smaller and less resource-intensive than leading solutions.
 - **Simple**: Easy setup with little manual configuration required.
 - **Docker stats**: Tracks CPU, memory, and network usage history for each container.
-- **Alerts**: Configurable alerts for CPU, memory, disk, bandwidth, temperature, load average, and status.
+- **Alerts**: Configurable alerts for CPU, memory, disk, bandwidth, temperature, fan speed, load average, and status.
 - **Multi-user**: Users manage their own systems. Admins can share systems across users.
 - **OAuth / OIDC**: Supports many OAuth2 providers. Password auth can be disabled.
 - **Automatic backups**: Save to and restore from disk or S3-compatible storage.
@@ -48,6 +48,7 @@ The [quick start guide](https://beszel.dev/guide/getting-started) and other docu
 - **Network usage** - Host system and containers.
 - **Load average** - Host system.
 - **Temperature** - Host system sensors.
+- **Fan speed** - Host system sensors (Linux, via `/sys/class/hwmon`).
 - **GPU usage / power draw** - Nvidia, AMD, and Intel.
 - **Battery** - Host system battery charge.
 - **Containers** - Status and metrics of all running Docker / Podman containers.

supplemental/scripts/install-agent.sh

@@ -5,7 +5,7 @@ is_alpine() {
 }
 
 is_openwrt() {
-  grep -qi "OpenWrt" /etc/os-release
+  [ -f /etc/os-release ] && grep -qi "OpenWrt" /etc/os-release
 }
 
 is_freebsd() {
@@ -16,6 +16,10 @@ is_opnsense() {
   [ -f /usr/local/sbin/opnsense-version ] || [ -f /usr/local/etc/opnsense-version ] || [ -f /etc/opnsense-release ]
 }
 
+is_pfsense() {
+  [ -f /etc/rc.bootup ] && grep -qi "pfSense" /etc/rc.bootup
+}
+
 is_glibc() {
   # Prefer glibc-enabled agent (NVML via purego) on linux/amd64 glibc systems.
   # Check common dynamic loader paths first (fast + reliable).
@@ -183,6 +187,21 @@ run_rc_command "$1"
 EOF
 }
 
+# Generate the boot hook used by the firewall appliances, neither of which
+# starts an enabled rc.d service at boot. The script body is identical for
+# both; only the install path differs (see the boot hook installation below).
+# The running-check guards against a double start, since pfSense may also run
+# the hook again during network events.
+generate_appliance_boot_script() {
+  cat <<'EOF'
+#!/bin/sh
+
+if ! /usr/sbin/service beszel-agent status >/dev/null 2>&1; then
+    /usr/sbin/service beszel-agent onestart
+fi
+EOF
+}
+
 # Detect system architecture
 detect_architecture() {
   local arch=$(uname -m)
@@ -437,14 +456,19 @@ if [ "$UNINSTALL" = true ]; then
 
     echo "Removing the FreeBSD service files..."
     rm -f /usr/local/etc/rc.d/beszel-agent
+    rm -f /usr/local/etc/rc.d/beszel-agent-start.sh
+
+    # Remove the OPNsense boot hook if it exists
+    rm -f /usr/local/etc/rc.syshook.d/start/99-beszel-agent
 
     # Remove the daily update cron job if it exists
     echo "Removing the daily update cron job..."
     rm -f /etc/cron.d/beszel-agent
 
-    # Remove log files
+    # Remove log files. The rc script derives its logfile from $name
+    # (beszel_agent), not from the script filename (beszel-agent).
     echo "Removing log files..."
-    rm -f /var/log/beszel-agent.log
+    rm -f /var/log/beszel_agent.log
 
     # Remove env file and directories
     echo "Removing environment configuration file..."
@@ -595,8 +619,8 @@ elif is_openwrt; then
   fi
 
 elif is_freebsd; then
-  if is_opnsense; then
-    echo "OPNsense detected: skipping user creation (using daemon user instead)"
+  if is_opnsense || is_pfsense; then
+    echo "Firewall appliance detected: skipping user creation (using daemon user instead)"
     AGENT_USER="daemon"
   else
     if ! id -u beszel >/dev/null 2>&1; then
@@ -716,7 +740,7 @@ if [ -f "$BIN_PATH" ]; then
 fi
 
 mv beszel-agent "$BIN_PATH"
-chown beszel:beszel "$BIN_PATH"
+chown "${AGENT_USER}:${AGENT_USER}" "$BIN_PATH"
 chmod 755 "$BIN_PATH"
 
 # Set SELinux context if needed
@@ -779,7 +803,7 @@ EOF
 
   # Create log files with proper permissions
   touch /var/log/beszel-agent.log /var/log/beszel-agent.err
-  chown beszel:beszel /var/log/beszel-agent.log /var/log/beszel-agent.err
+  chown "${AGENT_USER}:${AGENT_USER}" /var/log/beszel-agent.log /var/log/beszel-agent.err
 
   # Start the service
   rc-service beszel-agent restart
@@ -908,11 +932,11 @@ KEY="$KEY"
 TOKEN=$TOKEN
 HUB_URL=$HUB_URL
 EOF
-    chmod 640 "$AGENT_DIR/env"
-    chown "root:${AGENT_USER}" "$AGENT_DIR/env"
   else
     echo "FreeBSD environment file already exists. Skipping creation."
   fi
+  chmod 640 "$AGENT_DIR/env"
+  chown "root:${AGENT_USER}" "$AGENT_DIR/env"
   
   # Create the rc service file if it doesn't exist
   if [ ! -f /usr/local/etc/rc.d/beszel-agent ]; then
@@ -924,10 +948,43 @@ EOF
     echo "FreeBSD rc service file already exists. Skipping creation."
   fi
 
+  if is_pfsense; then
+    echo "Creating pfSense boot script..."
+    generate_appliance_boot_script > /usr/local/etc/rc.d/beszel-agent-start.sh
+    chmod 755 /usr/local/etc/rc.d/beszel-agent-start.sh
+  elif is_opnsense; then
+    # OPNsense does not execute /usr/local/etc/rc.d/*.sh at boot, so the
+    # pfSense hook above would never run. Install the same script as a syshook.
+    echo "Creating OPNsense boot script..."
+    mkdir -p /usr/local/etc/rc.syshook.d/start
+    generate_appliance_boot_script > /usr/local/etc/rc.syshook.d/start/99-beszel-agent
+    chmod 755 /usr/local/etc/rc.syshook.d/start/99-beszel-agent
+  fi
+
   # Enable and start the service
   echo "Enabling and starting the agent service..."
   sysrc beszel_agent_enable="YES"
   sysrc beszel_agent_user="${AGENT_USER}"
+
+  # sysrc writes to /etc/rc.conf, but rc.subr sources /etc/rc.conf.d/beszel_agent
+  # afterwards, so a stale or third-party file there silently overrides the value
+  # we just set. The service then refuses to start, and rc.subr's own error points
+  # at /etc/rc.conf, which looks correct. Verify the flag actually took effect.
+  # An empty value means this rc.subr does not support "rcvar"; skip the check.
+  rcvar_value=$(service beszel-agent rcvar 2>/dev/null | sed -n 's/^beszel_agent_enable="\(.*\)"$/\1/p')
+  if [ -n "$rcvar_value" ]; then
+    case "$rcvar_value" in
+    [Yy][Ee][Ss] | [Tt][Rr][Uu][Ee] | [Oo][Nn] | 1) ;;
+    *)
+      echo "Error: beszel_agent_enable resolves to \"${rcvar_value}\" even though it was just set to YES in /etc/rc.conf."
+      echo "Another rc configuration file is overriding it. The most likely cause is a leftover:"
+      echo "  /etc/rc.conf.d/beszel_agent"
+      echo "Remove or correct that file, then re-run this installer."
+      exit 1
+      ;;
+    esac
+  fi
+
   service beszel-agent restart
   
   # Check if service started successfully