hostname is unknown after reboot

[LeThien]

I have a trouble with my OS.  After i configured DNS and i can not see my hostname after it reboot.  Please help me to fix it :( Thank you !!!

[Dennis Handly]

What OS are you using?  HP-UX?

[Bill Hassell]

What version of HP-UX are you using?

You wrote:

After I configured DNS...

What exactly did you do?
Did you change /etc/hosts or /etc/nsswitch.conf?
What were the changes?

and i can not see my hostname after it reboot

What are you doing to 'see' the hostname?
Is the hostname incorrect or not found?
Are you using the hostname command?
Did you use the nslookup or nsquery command?
Did you use ping from an outside system?
Have you tested your DNS server for a correct entry?
    hint: nsquery $(hostname) myDNSserver

[LeThien]

I use HP UX 11.31 BOE

[LeThien]

I configure /etc/resolv.conf and vi NSS via SMH. After that my server can not found the hostname. It just " unknown" after i reboot. But when i "set_parms hostname" it still announce the real name of OS ( not unknown )