Configuring DNS problem?

I have configured DNS in 2003 server domain server named abc.doamiserver.com in such a way that let's say
testserver is resloved to 192.168.0.2 which is linux apache server.
Now when we simple browse http://testserver ,default page of Apache will be browsed.

Now in linux i want to exactly configure the same way so that i have to only browsed a word not whole URL. I tried in many ways but doen't get success.

Plz help .

If you want to look at:

machine1.mydomain.com

with just the name:

machine1

then you need to add 'search mydomain.com' to the top of the /etc/resolv.conf file.