CentOS7 更改hostname

要修改centos 的主機名為master, 有兩處需要修改

/etc/sysconfig/network

$ sudo vim /etc/sysconfig/network
# 最終結果為
# Created by anaconda
NETWORKING=yes
HOSTNAME=master           

/etc/hosts

将如下内容

$ sudo vim /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6           

修改為

127.0.0.1   localhost master localhost4 localhost4.localdomain4
::1         localhost master localhost6 localhost6.localdomain6           

或者直接執行如下指令

hostnamectl set-hostname newName           

重新開機即可