topic Re: Change Host Name in Operating System - HP-UX

Change Host Name

John Pyle — Wed, 17 Oct 2001 15:36:09 GMT

I need to change the name of one of my servers. I had to change the IP addresses on two servers a year or so back and did not plan for all the problems that could cause, OmniBack broke and I needed new licenses/passwords. I think I have a good procedure for the OmniBack changes but want to insure I have an understanding of what changing the host name will require on the system.

Re: Change Host Name

Sridhar Bhaskarla — Wed, 17 Oct 2001 15:42:14 GMT

1. You can use "set_parms hostname" to change the hostname of the system. Fairly straight forward.

2. Edit /etc/rc.config.d/netconf. Search for HOSTNAME and change it there.
Edit /etc/hosts and replace the old hostname with the new one.
Run /sbin/init.d/hostname start to set the hostname.

Verify the hostname by running the command "hostname" and "uname -n".

-Sri

Re: Change Host Name

eran maor — Wed, 17 Oct 2001 15:42:55 GMT

Hi

if you just want to change the name of the host you can do it my modify the file
/etc/rc.config.d/netconf .

or you can user the command :
set_parms hostname .

if you will change the hostname or the ip of an omniback server you can also go the the
site link : http://www.webware.hp.com/

over there you can change the ip of your license .

Re: Change Host Name

harry d brown jr — Wed, 17 Oct 2001 15:46:52 GMT

You'll might also need to change these files also, and a lot has to do with what software you have installed:

/etc/rc.config.d/netconf
/etc/mail/sendmail.cw
/var/adm/sw/target_hosts
/var/opt/perf/parm

find your other files by using:

find / -type f -size -100000c -exec grep -l {} \;

Re: Change Host Name

Eugen Cocalea — Thu, 18 Oct 2001 05:32:17 GMT

Hi,

/sbin/set_parms hostname

you will have to modify the DNS entry for the server(s) on the DNS server as well.

Changing the hostname of the machine is not causing too much problems anyway. It's like calling your pet with another name. Well, bad example, your pet may not answer another name, but your computer will surely do. Computers are sooo flexible :)

E.

Re: Change Host Name

Santosh Nair_1 — Thu, 18 Oct 2001 08:46:17 GMT

Don't know what other applications you're running on this machine, but if Oracle is one of them, you have to change $ORACLE_HOME/nework/admin/lister.ora and tnsnames.ora to point to the new hostname.

Also, you probably want to update /etc/hosts and run /etc/set_params hostname (which I believe does a reboot).

-Santosh

Re: Change Host Name

Ravi_8 — Thu, 18 Oct 2001 11:03:42 GMT

Hi,
#set_parms hostname
changes the hostname in hosts, netconf files. whereas if you have databases oracle/DB2/sybase you need to change in few files like tnsnames.ora in case of oracle.
ofcourse you need to reboot the system