CentOS7 更改hostname

要修改centos 的主机名为master, 有两处需要修改

/etc/sysconfig/network

$ sudo vim /etc/sysconfig/network
# 最终结果为
# 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

修改为

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

或者直接执行如下命令

hostnamectl set-hostname newName

重启即可