I can't seem to change the hostname on my CentOS 6.5 host.I am following the instructions I found here: http://www.rackspace.com/knowledge_center/article/centos-hostname-changeI set my /etc/hosts like so ...    [root@mig-dev-006 ~]# cat /etc/hosts    127.0.0.1   localhost localhost.localdomain     192.168.32.128  ost-dev-00.domain.com ost-dev-00    192.168.32.129  ost-dev-01.domain.com ost-dev-01... then I make my /etc/sysconfig/network file like so ...    [root@mig-dev-006 ~]# cat /etc/sysconfig/network    NETWORKING=yes    HOSTNAME=ost-dev-00.domain.com    NTPSERVERARGS=iburst... then I run hostname like so ...    [root@mig-dev-006 ~]# hostname ost-dev-00.domain.com... and then I run bash and all seems well ...    [root@mig-dev-006 ~]# bash... but when I restart my network the old hostname comes back:    [root@ost-dev-00 ~]# /etc/init.d/network restart    Shutting down interface eth0:  Device state: 3 (disconnected)                                                               [  OK  ]    Shutting down loopback interface:                          [  OK  ]    Bringing up loopback interface:                            [  OK  ]    Bringing up interface eth0:  Active connection state: activating    Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/6    state: activated    Connection activated                                                               [  OK  ]    [root@ost-dev-00 ~]# bash    [root@mig-dev-006 ~]# ... I can't figure it out.  What am I doing wrong here.
How to change hostname on CentOS 6.5?
centos;hostname
to change the hostname permanently, you need to change it in two places:vi /etc/sysconfig/networkNETWORKING=yesHOSTNAME=newHostNameand:a good idea if you have any applications that need to resolve the IP of the hostname)vi /etc/hosts 127.0.0.1 newHostName127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4::1         localhost localhost.localdomain localhost6 localhost6.localdomain6and then rebooting the system