红帽7之hostnamectl 实用小命令用法

rhel7 很多命令和rhel6 都不一样了，大家需要学习喽。

先从hostnamectl 开始哈

[root@roidb02 ~]# hostnamectl 

   Static hostname: roidb02

         Icon name: computer-vm

           Chassis: vm

        Machine ID: c3e6a26e2e00481f928f0c38b97cf5ab

           Boot ID: f7d681692d96485ea81b3524c7743647

    Virtualization: kvm

  Operating System: Red Hat Enterprise Linux Server 7.3 (Maipo)

       CPE OS Name: cpe:/o:redhat:enterprise_linux:7.3:GA:server

            Kernel: Linux 3.10.0-514.el7.x86_64

      Architecture: x86-64

[root@roidb02 ~]# hostnamectl status

   Static hostname: roidb02

[root@roidb02 ~]# hostnamectl --help     帮助非常重要啊

hostnamectl [OPTIONS...] COMMAND ...

Query or change system hostname.

  -h --help              Show this help

     --version           Show package version

     --no-ask-password   Do not prompt for password

  -H --host=[USER@]HOST  Operate on remote host

  -M --machine=CONTAINER Operate on local container

     --transient         Only set transient hostname

     --static            Only set static hostname

     --pretty            Only set pretty hostname

Commands:

  status                 Show current hostname settings

  set-hostname NAME      Set system hostname

  set-icon-name NAME     Set icon name for host

  set-chassis NAME       Set chassis type for host

  set-deployment NAME    Set deployment environment for host

  set-location NAME      Set location for host

[root@roidb02 ~]# cat /etc/hostname   --配置文件

roidb02

[root@roidb02 ~]# hostnamectl set-hostname roidb01

[root@roidb02 ~]# cat /etc/hostname    --配置文件直接生效了有没有

roidb01

[root@roidb02 ~]# cat /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

[root@roidb02 ~]# 

[root@roidb02 ~]# init 6  --重启验证

Last login: Sun Oct 15 07:23:33 2017 from gateway

不拉不拉省略.........

..................

[root@roidb01 ~]# 

[root@roidb01 ~]# hostnamectl 

   Static hostname: roidb01

           Boot ID: ec156edd01a84bdf8a4d8c91350a2ef2

[root@roidb01 ~]# cat /etc/hostname

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本文转自 roidba 51CTO博客，原文链接：http://blog.51cto.com/roidba/1972450，如需转载请自行联系原作者