Linux 防火墙
作者：互联网
查看防火墙的状况
service iptables status
开启与关闭防火墙
1) 永久生效
开启: chkconfig iptables on
chkconfig ip6tables on ---针对ipv6
关闭: chkconfig iptables off
chkconfig ip6tables off ---针对ipv6
2) 即时生效，重启后失效
开启: service iptables start
关闭: service iptables stop
3) Centos7.0 以后不再使用 service, 而是systemctl
状态：systemctl status firewalld
开启：systemctl start firewalld
关闭：systemctl stop firewalld
标签：iptables,service,防火墙,firewalld,systemctl,Linux,chkconfig 来源： https://www.cnblogs.com/ghostnet/p/15156175.html