Centos7 permanent hostname modification method, centos7hostname

Centos7 permanent hostname modification method, centos7hostname

The modification method of hostname in centos7 has changed. Modification of the/etc/hosts and/etc/sysconfig/network files is no longer effective. The new command used is:
Bash
Shell> hostnamectl set-hostname centos7
Shell> su
Shell> hostname
Centos7
Use this method for versions earlier than centos 7:
Bash
Shell> vi/etc/sysconfig/network

Created by anaconda

NETWORKING = yes
HOSTNAME = centos6
: Wq # Save and exit
Host A/B accesses host B directly through hostname:
Bash

Host A settings

Shell> vi/etc/sysconfig/network
GATEWAY = 192.168.1.100 # Intranet ip address of the current host
: Wq # Save and exit

Host A/B settings

Shell> vi/etc/hosts
192.168.1.100 hostname
: Wq # Save and exit