How to Change the Hostname on RHEL 6/Centos 6 Server

We can change the hostname of the linux operating system by using two basic methods which using the command line or graphical interface. As a reference, this article will describe how to change the hostname Red Hat Enterprise Linux 6 (RHEL 6) or CentOS 6. Please note that the server reboot is required for both options below.

Option A:
1. Modify /etc/sysconfig/network

[root@localhost ~]# vi /etc/sysconfig/network

2. Edit to your preferred hostname :

NETWORKING=yes
HOSTNAME=MyNewHostname.localdomain

3. Save and reboot your server.

Option B:
1. Type the following command to enter GUI mode.

[root@localhost ~]# system-config-network

2. Go to “DNS Configuration”.
Hostname

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3. Modify your preferred hostname and click OK.
Hostname

4. Click ” Save & Quit”.
Hostname

5.Reboot your server.

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