Linux CentOS7查看、关闭和开启防火墙
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
停止firewall
systemctl stop firewalld.service
禁止firewall开机启动
systemctl disable firewalld.service
启动firewall
systemctl start firewalld.service
开启firewall开机启动
systemctl enable firewalld.service
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