Do you need to reboot after changing hostname? If you entered the command you do not need to restart. The hostname is changed already. But only UNTIL your next restart.
How do I manually change the hostname in Linux?
- Type the following command to edit /etc/hostname using nano or vi text editor: sudo nano /etc/hostname. Delete the old name and setup new name.
- Next Edit the /etc/hosts file: sudo nano /etc/hosts.
- Reboot the system to changes take effect: sudo reboot.
How do you change the hostname in Linux? To change the hostname invoke the hostnamectl command with the set-hostname argument followed by the new hostname. Only the root or a user with sudo privileges can change the system hostname. The hostnamectl command does not produce output. On success, 0 is returned, a non-zero failure code otherwise.
How do I change the hostname in RedHat 7?
- use hostname control utility: hostnamectl.
- use NetworkManager command line tool: nmcli.
- use NetworkManager text user interface tool : nmtui.
- edit /etc/hostname file directly (a reboot afterwards is required)