Modify the hostname of Linux (CentOS)

Article Title: Modify the hostname of Linux (CentOS. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

How can I modify the host name of linux?

There are two methods:

1. Use the hostname command to modify the host name. The modification is temporary and will be restored to the previous one after restart. If you want to change the host name permanently, please refer to the following method.

2. Use vi to open/etc/sysconfig/network. The command is vi/etc/sysconfig/network. Then, you can see that there is a hostname = *** in it ***, you can modify the host name you want, so that the host name will not be restored after it is saved and restarted.