I have a bunch of linux servers. I have a Windows Server 2008 DC/DHCP/DNS server.
The DHCP server is set to do authenticated updates to DNS, and it works well enough. When you renew DHCP on the linux box, the A record shows up in DNS.
However, at some point 2-3 days after that, the records are disappearing. Running "service network restart" on the CentOS boxes fixes it (and dhclient -r on ubuntu), but I'd like to figure out why they're disappearing in the first place.
I don't have stale record scavenging enabled on the DNS server, and the DHCP lease time is 8 days.
How can I prevent my DNS records from disappearing?