How to Change Hostname on CentOS 5.8

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In this post, i will show you the basic guides on how to change the hostname on linux CentOS 5.8 server. Assumed that you have root account access on this CentOS server and this steps may working on RHEL 6, RHEl 5, CentOS 5.5, CentOS 5.6, CentOS 5.7, CentOS 6.0, CentOS 6.1 and CentOS 6.2.

1. Check current hostname :

[root@localhost ~]# hostname
localhost.localdomain

2. Modify “/etc/sysconfig/network” to change hostname :

[root@localhost ~]# vi /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=localhost.localdomain

Change the hostname to the following :

NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=centos58.ehowtuff.local

Alternatively, you can execute the following command :

[root@localhost ~]# hostname centos58.ehowtuff.local

3. Change host file :

[root@localhost ~]# vi /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6

127.0.0.1 centos58.ehowstuff.local centos58

4. Reboot the server.

[root@localhost ~]# reboot
As always if you need any help you can reach us on twitter @ehowstuff or drop us a comment below. Jumping through archives page to read more articles..


Skytech is a part time blogger that has over 6 years experience in servicing, repairing and configuring computers and administering the server systems.

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