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Tailscale: Device key expiring within 7 days
Description
Identifies tailnet devices whose machine key expires within the next 7 days and where key expiry is not disabled. Surface proactively so renewal can be scheduled rather than forced during an outage.
- Rule type
- Scheduled
- Version
- 1.0.0
- Declared status
- Available
- Query frequency
- 6h
- Query period
- 6h
- Trigger
- gt 0
Declared MITRE coverage
Declared sources
Metadata from the source file. No dependencies inferred from KQL.
Connectors
Data types
KQL query
Original query, unchanged.
Tailscale_Devices_CL
| where TimeGenerated > ago(6h)
| summarize arg_max(TimeGenerated, *) by DeviceId
| where KeyExpiryDisabled == false
| where isnotnull(Expires)
| where Expires between (now() .. now() + 7d)
| extend DaysToExpiry = datetime_diff('day', Expires, now())
| project TimeGenerated, DeviceName, Hostname, User, Os, DaysToExpiry, Expires, LastSeen
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
9800e51↗- Source identifier
b1a2c3d4-1234-5678-90ab-cdef12345001
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC