3. Linux 主机名设置

查看主机名:

uname

[root@centos6 ~]# uname
Linux
[root@centos6 ~]# uname -a
Linux centos6.magedu.com 2.6.32-696.el6.x86_64 #1 SMP Tue Mar 21 19:29:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@centos6 ~]# uname -r
2.6.32-696.el6.x86_64
[root@centos6 ~]# cat /etc/centos-release
CentOS release 6.9 (Final)