Linux Modify hostname

1, if only modify hostname can be by the following command

Hostname

Note: This modification is only valid until the server restarts and the hostname expires, returning to the original hostname.

2. If you need to permanently modify hostname, you can use the following command

Modify the hostname entry, but this method requires a reboot to take effect.

3, so do not restart and can permanently modify the way hostname is combined with the above two, so that you can do not restart the current also effective, restart after the effective.

Linux Modify hostname