testing nslookup - ptr record

[kaizer]

hello
i am testing 2003 AD etc - DC is also DNS server in test domain with no internet connection
1)does doing a ping -a (dns server ip) verify that the DNS ptr record is ok?
2)how do i use nslookup to verify the reverse lookup record?
thanks

 

[mwiner]

To check to see if the A name record is ok you do:

nslookup server


To check to see if the PTR recrd is ok you do:

nslookup ipaddres

 

[RicardoPereira]

When i check the reverse lookup record with nslookup server i got a non-existent domain error. What should be done to correct this?

Thanks in advanced

Ricardo

 

[mwiner]

Does the reverse zone exist?

If you you have server.domain.com with an IP of 192.168.100.20

You should have a 100.168.192.in.arpa. zone. That is assuming you have a C class.

To create the in.arpa zone if you don't have one: in DNS you should see two folders. A forward lookup and a reverse lookup. Right click reverse and add a new reverse lookup zone

In there you will have your PTR records from 192.168.100.20 to server.domain.com

Once the in.arpa zone is created and you are creating new A Name records in your forward lookup domain you can check the box that says "Create PTR record for reverse lookup"

-Matt