CentOS 6
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Set Hostname2013/01/18
 
The example for setting Hostname of your system.
[1] Change hostname with a commnad (but if rebooting, it will be back).
[root@dlp ~]#
hostname
# show current hostname

rx-7.srv.world
[root@dlp ~]#
hostname rx-8.srv.world
# change hostname

[root@dlp ~]#
hostname

rx-8.srv.world
# changed
[2] Change hostname permanently.
[root@dlp ~]#
vi /etc/sysconfig/network
# change

HOSTNAME=
rx-8.srv.world
[root@dlp ~]#
exit
CentOS release 6.3 (Final)
Kernel 2.6.32-279.5.2.el6.x86_64 on an x86_64
rx-8.srv.world.info login:
# changed
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