CentOS开放端口

1.开放端口

firewall-cmd --zone=public --add-port=30000/tcp --permanent

2.查看防火墙状态

systemctl status firewalld

3.reload生效

firewall-cmd --reload

4.查看防火墙端口

firewall-cmd --list-ports

5.启动防火墙

systemctl start firewalld

6.禁用防火墙

systemctl stop firewalld

7.删除某个端口

firewall-cmd --zone=public --remove-port=80/tcp --permanent

8.查看端口情况

lsof -i:8082

9.列出所有端口

netstat -ntlp