DNS Host Record - Static IP Changes in DNS to DHCP IP
Posted on 2006-06-08
We have an interesting DNS issue on a Windows 2003 domain running AD. We have a web server set with a static IP address. The host address of the web server is initially set in DNS mapped to the static address. What happens is (for some reason) that host address changes in DNS from the static IP address to another IP address (an address distributed by the DHCP server).
Now when you do a ping, for example, DNS resolves the web server name with the incorrect DHCP address. I can still ping the original static address, but for some reason the DNS gets changed and no longer resolves to the correct IP… I can manually change the host in DNS (on the DNS server) back to the static address, but this process continuously repeats and the static map in DNS changes to the same DHCP address. I’ve manually deleted the bogus DHCP address mapping from the DHCP server too.
Like I said the NIC is set to static, to the best of my knowledge there are no other devices on the network with that name, and I haven’t had any IP conflicts.
At this point I’m not sure what else it can be, so I’m posting here.