• Change hostname on Centos6

    There are two ways to change your server hostname :

    1)Temporary :

    You can get your current hostname by typing the following commande into your terminal :

    [root@dhcppc2 ~]# hostname
 localhost.localdomain

    To change the hostname temporarily ,run the following command:

     [root@dhcppc2 ~]# hostname raafat.innovationsol.com

    Note:After reboot these changes will be lost.

    Now ,Check the current hostname with this command :

     [root@dhcppc2 ~]# hostname --fqd
 raafat.innovationsol.com

    2)Permanent hostname change :

    To make a permanent change, you must modify the network file which is read on system boot as following :

    [root@dhcppc2 ~]# nano /etc/sysconfig/network

    Then,Change the value of  hostname to the new one you want.

    Old one :

    NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=localhost.localdomain

    New one:

    NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=raafat.innovationsol.com

    Then, You have to  reboot your network service

    [root@dhcppc2 ~]# /etc/init.d/network restart

    Verify that the hostname has changed by typing :

    [root@dhcppc2 ~]# hostname --fqdn
raafat2.innovationsol.com

    In order for your new hostname to resolve properly, you should also update your /etc/hosts file to reflect the change.
    For an example:

    127.0.0.1               localhost.localdomain localhost raafat.innovationsol.com
::1             localhost6.localdomain6 localhost6

    Categories: Linux

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