Changing host names on fc15

[EclipseSW]

I'm building a replacement service, and in the not to distant future, I'll need to change the host name and IPs (ipv4) (I'll also be doing this on the fedora 10 box I'm replacing)

I can look around and edit a bunch of files to make it happen, but there has to be an easier way. Any hints?

[bodhi.zazen]

set a hostname in /etc/sysconfig/network

make sure to check /etc/hosts as well.

[EclipseSW]

Originally Posted by bodhi.zazen

set a hostname in /etc/sysconfig/network

make sure to check /etc/hosts as well.

With Fedora 15, I noticed the host name is also part of the labels on various slices (by way of the install process), and this change won't screw up the boot process, right?

And things like the host name in prompts, etc, will be taken care of?

[DBelton]

There are a few things that also use the hostname in Fedora.. Like the default label for your LVM created during the install. Changing your hostname won't affect this name, just make sure to leave it the same in the LVM name, /boot/grub/grub.conf and in your /etc/fstab.

What other things have you noticed the host name being a part of the label on?

(and yes, when you get the hostname changed correctly, it will be taken care of in the prompts, etc... )

Also, when changing the host name, if it is currently localhost.localdomain, then add the new hostname to your /etc/hosts file, but leave the localhost name in there as well. Some applications specifically look for localhost, and you could break things by removing that name for your /etc/hosts file. (make sure to change the entries for IPv4 and IPv6 as well.

(example /etc/hosts file below to show what it would look like for a system with host name tower20.home)

127.0.0.1   tower20 tower20.home localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         tower20 tower20.home localhost localhost.localdomain localhost6 localhost6.localdomain6