Return Short Names in DNS

[Ralph Burnette]

Is there anyway to configure
named so that when a
query is resolved, only the
short name and the IP are
returned?

Example:

nslookup hpserver

Returns:

hpserver.mycompany.com
192.168.1.225

What I would like to see
is it returning:

hpserver
192.168.1.225

Thanks

[Sean OB_1]

I don't know of anyway to do this.

[Rajeev Shukla]

There is no way. It will always rerurn you the full name with domain.
Only query you can specify with short names by specifying search in /etc/resolv.conf.

But when it returns it returns a full name only.
I see only one possibility to trim this is by using your won c program which uses gethostbyaddr() and gethostbyname() library. Using these you can definately return a short name.

Cheers
Rajeev

[Steven Gillard_2]

Would the 'getip' command help? It uses gethostbyname() and returns the IP address only:

$ getip localhost
127.0.0.1
$

Regards,
Steve

[Fred Martin_1]

You could create a shell alias in a user's .profile

alias nslookup=/usr/local/bin/my-nslookup

Then my-nslookup could be a script that would perform an nslookup, then use sed or awk, etc, to make the output appear as you like.

If you only wanted your own domain to go away but display others, a simple sed could do it:

nslookup $1 | sed 's/\.mycompany\.com//'

That's a crude example but it could be done.

[Trever Furnish]

I think all the previous posts are correct - that's not the way it works, ever. But...

It's simple to get just the first word:
nsquery hosts hpserver | grep "^Hostname" | cut -f2 -d" " | cut -f1 -d"."

(Note that the commands above are meant to be a one-liner - your browser may wrap them.)

[Shannon Petry]

Or append awk to nslookup ;

nslookup 3.1.3.1 | awk -F. '{print $1}' would omit domain/sub-domain information.

Regards,
Shannon