CentOS7查看和关闭防火墙
CentOS 7.0默认使用的是firewall作为防火墙
查看防火墙状态
firewall-cmd –state
not running (没有起动)
方法:手动启动它
systemctl start firewalld //启动服务
又出错:
Failed to start firewalld.service: Unit is masked. firewalld
服务被锁定了
方法: systemctl unmask firewalld
systemctl status firewalld //查看是否启动成功
停止firewall
systemctl stop firewalld.service
禁止firewall开机启动
systemctl disable firewalld.service