In environments where DNS records are updated frequently, it is advisable to consider configuring DNS Aging and Scavenging settings to remove stale records automatically.
By default, Windows OS caches DNS records for one day. The MaxCacheTtl registry value may be adjusted on the Veeam Backup & Replication server in environments with frequent DNS changes to reduce invalid cached information.
The example below demonstrates how to set the DNS Cache TTL to 1 second, essentially disabling all DNS caching.
Key Location: HKLM\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters\
Value Name: MaxCacheTtl
Value Type: DWORD (32-Bit) Value
Value Data: 1