Changing hostname and IP on Solaris 10

We have a Solaris 10 machine and need to change the hostname and the IP address. I have worked primarily with Solaris 8 and this is my first experience with Solaris 10. I am fairly sure I will get the basics, but I have the vague recollection that there was something under /etc/opt or similar. Now, I cannot find it. So, I was wondering if someone knew of a checklist of things to change to make sure that I do not miss anything.

Any info would be greatly appreaciated.

I dunno if it is still in Sol 10, but there WAS a command/script called sys_unconfig which you could use to do this.

Changing the IP on Solaris 10 requires editing two files:

1. /etc/hosts
2. /etc/inet/ipnodes

If you are changing network address, you will need to change the router address in the file:
1. /etc/defaultrouter

Changing the hostname now only requires editing these files:

1. /etc/hosts
2. /etc/nodename
3. /etc/hostname.<interface name>

<interface name> is the driver name followed by the instance number of the interface. ie. hme0, bge0, ce0, qfe0

You can find all your network interfaces by drivername and instance# by running the following command: prtconf -D | grep network

Note: the following hosts files are no longer used in solaris 10.
/etc/net/ticlts/hosts
/etc/net/ticots/hosts
/etc/net/ticotsord/hosts

Rebooting the computer should bring up the new ip and hostname.

Hi,

I tried modifying the hostanme and IPAddress using sys-unconfig command but in vain. After feeding all the configuration details of the system, at the end the following error is observed.
"System Identification Error-------
An error occured while trying to set the IP address XX.XXX.XX.XX on the network interface.

- Kraja

Your help on this is greatly appreciated....as i have imp deliverables.

I tried editing the three files suggested by shiv--- to no avail. I've tried as well editing all the meaningful /etc* files as prescribed by "the book" and still no luck. Running 5.10 on a new x86 Toshiba laptop and so far everything else seems fine. Installed as 'network' computer and using DHCP (as req'd by router); which gives no opportunity to name the host, so it's "unknown". Ask away if you need to know what some of the files or prtconf looks like. Thanks in advance.

In addition to changing the /etc/hosts file you need to do a uname -S `hostname` and that should do the trick.

imho, a sys-adm should know what he is doing, forget tools for this
jos - or an other issue like add or delete users - follow shiv729 instructions,
so you will learn how to do it, even if tools are NOT installed

btw: my experience NEVER DELETE AN USER, just disable it, setting
an inpossible pwd or changing his login-shell to a non existing-shell.
why?
if you have to restore data .......... imagine what could happen

Thanks shiv729. To change the IP steps 1 and 2 were all that was needed. I found another post that referenced a lot more files (probably for older Solaris) but for Solaris 10, your instructions were spot on.