I am having big time issues with DNS and pulling my hairs. My mission was to delete stubborn PTR record. When I delete the PTR record and refresh the DNS snap-in the PTR record right comes back up. When it comes to DNS troubleshooting the build in tool we have is NSlookup. (Reverse lookup zone needs to be present for NSlookup tool to work properly). If you need better tool here is NetDig
In my case I was able to delete the record by using DNSCMD. My IP address is 10.160.2.99 and my PTR record is oozugurlupc.archq.ri.smtp25.org
I will go to command line and type following string,
Dnscmd /RecordDelete 10.in-addr.arpa. 99.2.160 PTR
If you notices I have dot after arpa, also my IP Address 10.160.2.99 the first octet which is 10 right after the record delete 10.in-addr.arpa. And the rest (160.2.99) I listed backwards), as 99.2.160, Space PTR.
You will receive Are you sure you want to delete record? (y/n), press Y (yes), than you will receive following statement
Deleted PTR record(s) at 10.in-addr.arpa.
Command completed successfully.
Now the record is gone forever
MCITP (EMA), MCITP (SA),
MCSE 2003 M+ S+ MCDST
Security Project+ Server+