centos 7+防火墙控制
1、firewalld的基本使用
启动: systemctl start firewalld
查看状态: systemctl status firewalld
停止: systemctl disable firewalld
禁用: systemctl stop firewalld
查看硬盘空间
df -h
查看内存
free -m
centos 7+防火墙控制
转载于:https://www.cnblogs.com/SilenceRet/p/9108347.html