How to change the Linux host name?

The ostname command only temporarily changes the host name. After restart, the host name is restored to the original one.

To change the host name permanently, modify the/etc/sysconfig/network file.

VI

/Etc/sysconfig/network, change the hostname line to "hostname = Host Name"

For example:

Hostname = linuxserver

Gateway = 10.16.255.254

(No? Add this line), and then run the command

"Hostname host name ". You must modify the host name in the/etc/hosts file. In this way, no matter whether you restart or not, the host name is modified successfully.