Linux modifies host name

Original address

1. Temporarily modify the hostname:
[[email protected]]# hostname host Name
The modification can only be temporary, and the machine restarts and restores.
2. Permanently modify the hostname:
Modify the Hostname file (path:/etc/hostname):
[Email protected]]# Nano/etc/hostname
Change all the original names in the hostname file to the name you want to change.
The hostname is also stored in the/etc/hosts file, and the host name corresponding to the current IP address needs to be modified to the name in the hostname file.
Then restart the machine:
[email protected]]# reboot

Linux modifies host name