Different Outputs from nslookup

[KPS]

Hi,

I'm seeing some differences in the way nslookup shows Resolved IP and Host info...

On RedHat 2.1, I use nslookup for look up on an IP and get: (Reverse Address DNS Address and Hostname resolved)

Example:) 52.205.102.10.in-addr.arpa

If I do this on an HP-UX 11.11 I only get the forward IP.

What I'm wondering is if this is correct behavior consistent with what each OS shows you or could there be something wrong with my Host Configurations in /etc/resolv.conf or /etc/nsswitch.conf on either one of these nodes specifically?

[Sundar_7 · Accepted solution]

Ken,

As far as I know, that is exactly the behaviour you can expect from HP-UX implementation of nslookup.

I cannot tell you about RedHat nslookup, but HP-UX nslookup doesnt use the standard gethostbyaddr() and gethostbyname() functions. It uses its own functions and has its own default criteria (if nsswitch.conf file is not there).

- Sundar.

[Geoff Wild]

Depends on version of resolver on hosts...could also be your host configs - are they the same?

Maybe try dig instead.

dig -x 10.102.205.52

Comes with bind 9, else install HP-UX version from here:

http://hpux.ee.ualberta.ca/hppd/hpux/Networking/Admin/dig-2.0/

Rgds...Geoff