CentOS 6:
1) 永久性生效,重启后不会复原
开启:
chkconfig iptables on
关闭:
chkconfig iptables off
2) 即时生效,重启后复原
开启:
service iptables start
关闭:
service iptables stop
CentOS 7:
systemctl start firewalld.service#启动firewall
systemctl stop firewalld.service#停止firewall
systemctl disable firewalld.service#禁止firewall开机启动
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