What's the downtime limit of a domain controller (DC)?
On my VMware ESXi environment there are 10 VMs running. One of the VMs is the domain controller (Windows Server 2008 R2). The other VMs are configured with a static DHCP and DNS IP address in their network settings.
How long is the downtime limit of my domain controller?
If it is the only DC, there is no limit since it has no replication partners. If there is more than one, other DCs will refuse replication from it after it has been offline longer than the tombstone lifetime, which is 180 days by default.