Change CentOS / RHEL 7 server hostname
Change your hostname without restarting the server with these three easy steps:
1.-Delete the old name and set a new name.
sudo nano /etc/hostname
Ej. 192.681.1.8 midominio.com
2.- Add your hostname or replace the old one.
sudo nano /etc /hosts
midominio.com
3.-Add the following line:
hostname cambiequiporelnombredehostnuevo
With this last step you will not need to restart the server.
