CentOS開放端口
1.開放端口
firewall-cmd --zone=public --add-port=30000/tcp --permanent
2.查看防火墻狀態
systemctl status firewalld
3.reload生效
firewall-cmd --reload
4.查看防火墻端口
firewall-cmd --list-ports
5.啟動防火墻
systemctl start firewalld
6.禁用防火墻
systemctl stop firewalld
7.刪除某個端口
firewall-cmd --zone=public --remove-port=80/tcp --permanent
8.查看端口情況
lsof -i:8082
9.列出所有端口
netstat -ntlp
