首先介绍一下我的实验环境。三台配置相同的虚拟机，
[root@test ~]# ip a|grep -w "inet"|grep -vw lo inet 10.0.0.10/24 brd 10.0.0.255 scope global eth0 [root@test ~]# uname -r 2.6.32-754.el6.x86_64 [root@test ~]# cat /etc/redhat-release CentOS release 6.10 (Final) [root@test ~]#