linux查看端口,并且新增端口

1.firewall-cmd –list-ports

2.netstat 工具检测开放端口 netstat -anlp | grep 3306 新增8081端口

3. iptables -A INPUT -p tcp –dport 8081 -j ACCEPT #iptables -I INPUT 5 -p tcp –dport 2223 -j ACCEPT #iptables -A OUTPUT -p tcp –dport 2223 -j ACCEPT 4.service iptables save

5.开启80端口 firewall-cmd –zone=public(作用域) –add-port=80/tcp(端口和访问类型) –permanent(永久生效) firewall-cmd –zone=public –add-port=80/tcp –permanent

6.重启防火墙 firewall-cmd –reload

7.停止防火墙 systemctl stop firewalld.service

8.禁止防火墙开机启动 systemctl disable firewalld.service

9.删除 firewall-cmd –zone= public –remove-port=80/tcp –permanent