人生若只如初見

跟linux稍有不同
1/hostname newhostname
2/修改/etc/rc.conf内的hostname

1. change hostname – good till nex reboot
#hostname [your_new_hostname]

2. change hostname – good after next reboot
edit /etc/sysconfig/network (RedHat)

3. change ip associated hostname – good till nex reboot
edit /etc/hosts

By finish the combination of 1, 2 and 3 steps you will change your hostname immediatly and permanently.