Centos 更改主机名

Centos 6.x

vi /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=localhost.localdomain
GATEWAY=192.168.10.1

vi /etc/hosts 127.0.0.1
localhost localhost.localdomain server 

Centos 7.x

[root@localhost log]# hostnamectl status
   Static hostname: localhost.yvsy7
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 68a9a20de8ab4776a88eff33bd41b8ae
           Boot ID: 405ba16753364bad82f4d057a51b6499
    Virtualization: microsoft
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-123.el7.x86_64
      Architecture: x86_64

# 查看主机名
hostnamectl --static  # 静态
hostnamectl --transient #瞬态
hostnamectl --pretty  #灵活 

# 设置主机名
hostnamectl set-hostname server #同时修改三种状态主机名 
hostnamectl --static set-hostname server #永久修改主机名