DNS issue.

[Bill Hassell]

> nslookup hpi.dhq.lr.org
> *** Can't find server name for address 10.5.3.180: Non-existent domain

So this indicates that the DNS nameserver can't even identify itself. nslookup has a nifty feature: You can specify any DNS server on the command line to override nsswitch.conf and resolv.conf:

nslookup hpi.dhq.lr.org 10.5.3.180

You'll likely get the same results but it does allow you to test other DNS servers on the command line. Another useful tool is nsquery:

nsquery hosts hpi.dhq.lr.org

This gives you a step-by-step report of the attempts to resolve the name and the results.

Since you can ping the DNS server yet it does not respond to DNS requests, the port is blocked *OR* you may have subnet mask or route error that is not setup for a valid return path. Do you have multiple LAN cards on this server? nettl (HP-UX trace) or Wireshark (PC based packet trace) may help.

[Jose Mosquera]

Hi again,

Please comment your current "host:" line and set this one:

hosts: files [NOTFOUND=continue UNAVAIL=continue TRYAGAIN=continue] dns [NOTFOUND=continue UNAVAIL=continue TRYAGAIN=return]

And please let me know the current domain definition set at /etc/etc/resolv.conf file.

Rgds.

[kpatel786]

Thanks all the issue has been resolved. It was related to DNS PTR records at the window servers end.

[kpatel786]

Thanks all for your time and assistance.