centos7命令:
查看ip : ip addr
怎么重启网络: systemctl restart network
怎么关闭防火墙:systemctl stop firewalld
开启:systemctl start firewalld
https://blog.csdn.net/qq_40087415/article/details/79367151(yiban)
https://blog.csdn.net/ztynet/article/details/51698614(几个)
https://www.cnblogs.com/huiandong/p/9973786.html