The Address (A) record associates a domain name or subdomain with an IP address, which is the primary purpose of the DNS system. The @ sign identifies "this domain;" for example, A @ nnn.nnn.nnn ...

Scavenging is a feature that allows the cleanup and removal of stale resource records in DNS zones. A stale resource record will be removed only if scavenging is enabled on: The resource record ...

the A record of the primary server in the zone’s SOA record is unavailable on this DNS Server. In this post, we will see how you can resolve the conflict in Zone and check the DNS Settings.