DNS

I am trying to test and learn Sun Secure Desktop on a testing server.how can I setup dns to resolv the host name it can' t resolv it right.what to configure which file. I thought I had it right but not so.
[227 byte] By [bigd41] at [2007-11-26 7:10:52]
# 1
Try this one: http://www.sun.com/bigadmin/content/submitted/dns_config_tip.html
Red_Oregon at 2007-7-6 16:03:40 > top of Java-index,Desktop,Sun Secure Global Desktop Software...
# 2
I try to do that and it still not resolving right I do an nslookup and nothing this is redhat linux 4
bigd41 at 2007-7-6 16:03:40 > top of Java-index,Desktop,Sun Secure Global Desktop Software...