Change Host Name

[John Pyle]

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.

[Sridhar Bhaskarla]

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

[eran maor]

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 .

[harry d brown jr]

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 {} \;

[Eugen Cocalea]

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.

[Santosh Nair_1 · Accepted solution]

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

[Ravi_8]

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