How do I permanently change the hostname on Solaris 10?

Question

I want to permanently change the hostname on a Solaris box. How do I do that?

Answer 1

Assuming that you have allowed the operating system to configure the primary interface for you, there are three (3) files you must change:

/etc/hosts
/etc/nodename
/etc/hostname.<interface>

<interface> will be the primary ethernet interface for the system. Some examples (depending on your architecture) will be bge0, hme0, e1000g0, eri0, qfe0. Here's an ad-free answer for future reference.

Answer 2

They don't make it easy, do they?

Answer here: http://www.tech-faq.com/change-hostname-solaris.shtml

Answer 3

The supported way of doing this is to run the sys-unconfig command, then reconfigure the host with the desired name.

Answer 4

to piggyback off gary chambers--here's a more authoritative source! His answer is correct though, I give him all the credit for that, but I take a Reaganistic approach to external sources...trust--but verify!

http://docs.oracle.com/cd/E19253-01/816-4554/gbwxb/index.html

section 5.1: Modifying the IPv4 Address and Other Network Parameters to Persist Across Reboots

taken from: System Administration Guide: IP Services > Part II TCP/IP Administration > Chapter 5 Configuring TCP/IP Network Services and IPv4 Addressing (Tasks) > Configuring Systems on the Local Network > How to Change the IPv4 Address and Other Network Configuration Parameters

Also in versions earlier than 11/06, do the following:

# vi /etc/inet/ipnodes

<IPoflocalhost> <updatedhostname>

Answer 5

sys-unconfig may be the supported way of doing this, but it completely hoses the entire configuration of the machine and you have to re-configure a reboot (from the LOM or system controller). What a pain.

also issue the command hostname new_hostname and a reboot is not required. You must also rename the /var/cras/hostname file and update the /etc/dumpadm.conf file and change the hostname.

Answer 6

Use:
uname -S <new-hostname>
to change the hostname of a running system. Beware that the change will be lost upon reboot. To make them permanent, modify the files indicated by Gary Chambers.

Answer 7

#ifconfig -a

lo: 127.0.0.1  e1000g0 : 192.168.1.2 <----- Ur interface Name

#vi /etc/hostname.<interface>
192.168.1.2 hostname hostname

save and exit

#svcadm restart network