Just came across an odd situation where one of my Windows 2008 R2 domain controllers does not have a PTR record in the Reverse Lookup Zone of my Active Directory integrated DNS.
I noticed this by doing an nslookup from my workstation. Since my primary DNS is the server I'm referring to above, the nslookup window starts with "Default Server: UNKOWN" and the IP address of the server below it.
All DNS resolution and network functionality is fine. I'm not sure if this existed for a while or whether it has to do with the fact that I just did some Windows Updates on just this one DC and rebooted it.
Will the PTR record come back on its own? Will I cause any problems by simply doing a "ipconfig /registerdns" command on the box. The TCP/IP properties on the DNS tab have the "register this connection in DNS" option selected.
Please provide feedback - thanks! I'd like to correct this the right way (and understand what happened here).