Changing your hostname on Solaris

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Written By: Steve Ayotte

Date: 4/27/2007

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Overview

The goal of this tutorial/doc is to guide you through changing the hostname of a given Solaris install so that it will properly function under the new name. It's not meant to be comprehensive--- it's meant to cover only those things needed by Solaris to properly identify itself.

Note that this means it does *not* include updating any references to the hostname in Nameservices/directories such as DNS, NIS, LDAP, etc. In a well fleshed-out network you'll probably need to make updates there as well.

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Files to be edited

  • /etc/hostname.<name of primary network interface>
  • /etc/hosts
  • /etc/inet/ipnodes (Solaris installs that support IPv6)
  • /etc/nodename
  • /etc/dumpadm.conf
  • /etc/net/ticlts/hosts
  • /etc/net/ticots/hosts
  • /etc/net/ticotsord/hosts
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Editing the files

This should probably be done in single-user mode, so that any services which try to resolve the hostname using local files won't disagree mid-stride.

Basically you can use the following lines for each file: 

  vi <filename>
  :%s/<old hostname>/<new hostname>/gc
  :wq!

That having been done, reboot the machine and watch for errors. Be sure to check the logs in /var/log and /var/adm/log for errors as well.

Sayotte 11:08, 27 April 2007 (EDT)

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