Internal DNS
No signal important tier-1 DNSResolves 10.10.0.0/24 names for LAN services.
- Last heartbeat
- never
- Signal source
- probe
- Host
- Home1
- Target RTO
- 20m
Recovery readiness50/100
Why it is no signal
- self No heartbeat has ever been received from this entity.
Failover
mode: automatic-
Secondary resolver on VIN answers when Home1 is unreachable.
Availability class
Estate-critical · target 99%Resolves 10.10.0.0/24 names for LAN services.
- Class
- tier-1 Estate-critical: still serving, but a major capability or recovery is gone.
- RTO (declared)
- 20m
- RTO (achievable)
- 20m
- RPO
- —
- State
- rebuildable
- Redundancy
- active / passive
- Failover
- automatic → vin
- Failure domain
- fd-home-rack
Health check: resolution probe every 300s — proves a known name resolves to the expected address. Observed independently of the service.
Without it: The VIN secondary answers. Clients cache aggressively, so a fixed resolver can still look broken until TTLs expire — use IP addresses directly during recovery.
A failover costs: None: the zone is configuration, replicated ahead of the fault.
Dependencies
blast radius: 0
Depends on
Home1
Depended on by: none