Centos8 firewall common operations

This article is a personal operation note. For detailed reference, please visit centos8 firewall common commands

Turn off the firewall

systemctl stop firewalld.service
systemctl start firewalld.service

Operation example

firewall-cmd --query-port=8080/tcp # 查询端口是否开放

firewall-cmd --add-port=80/tcp --permanent #永久添加80端口例外(全局)
firewall-cmd --remove-port=80/tcp --permanent #永久删除80端口例外(全局)
firewall-cmd --add-port=65001-65010/tcp --permanent #永久增加65001-65010例外(全局) 
firewall-cmd --zone=public --add-port=80/tcp --permanent #永久添加80端口例外(区域public)
firewall-cmd --zone=public --remove-port=80/tcp --permanent #永久删除80端口例外(区域public)
firewall-cmd --zone=public --add-port=65001-65010/tcp --permanent #永久增加65001-65010例外(区域public)

firewall-cmd --reload #重启防火墙(修改配置后要重启防火墙)