RHEL6- (7) CHANGE HOSTNAME

     RHEL6-7 CHANGE HOSTNAME:

HOW TO CHANGE HOSTNAME:RHEL6:

[root@rhel6-server ~]# hostname

rhel6-server

I need to make it client instead of server.

Temporary change:

[root@rhel6-server ~]# hostname rhel6-client1

[root@rhel6-server ~]# hostname

rhel6-client1

It will not sustain reboot.

Let’s make it persistent.

/etc/sysconfig/network

[root@rhel6-server ~]# vi /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=rhel6-client1 çç

GATEWAY=192.168.234.2

[root@rhel6-server ~]# cat /proc/sys/kernel/hostname

rhel6-server

[root@rhel6-server ~]# echo rhel6-client1 >/proc/sys/kernel/hostname

[root@rhel6-server ~]# cat /proc/sys/kernel/hostname

rhel6-client1

[root@rhel6-server ~]# vi /etc/hosts

127.0.0.1   localhost

192.168.234.146 rhel6-client1

192.168.234.147 rhel6-client1

192.168.110.135 rhel6-client1

[root@rhel6-server ~]# service network restart

#reboot

login as: root

root@192.168.110.135's password:

Last login: Wed Feb 15 00:31:33 2017 from 192.168.110.1

[root@rhel6-client1 ~]# hostname

rhel6-client1 çç