Hostname Settings

Hostname Settings in CentOS 6

vim /etc/sysconfig/network

# HOSTNAME=<HOSTNAME>

vim /etc/hosts

# append：127.0.0.1   <HOSTNAME>

hostname <HOSTNAME>

exec bash

Hostname Settings in CentOS 7

hostnamectl set-hostname <HOSTNAME>

vim /etc/hosts

# append：127.0.0.1   <HOSTNAME>

exec bash