防火墙

iptables防火墙

1.安装防火墙

yum install iptables-services

2.查看防火墙状态

service iptables status

systemctl防火墙

1.查看防火墙状态

systemctl status firewalld

2.查看开放端口

firewall-cmd —zone=public —list-ports

3.增加开放端口

firewall-cmd —zone=public —add-port=80/tcp —permanent

4.开启后需要重启防火墙才生效

firewall-cmd —reload