一,systemctl相关命令
1.查看防火墙的状态
systemctl status firewalld.service
2.打开:
systemctl start firewalld.service
3.停止
systemctl stop firewalld.service
4.开启
systemctl enable firewalld.service
5.停止
systemctl disable firewalld.service
6.重新加载
systemctl reload firewalld.service
二、firewall-cmd相关命令
(1)查看防火墙状态:firewall-cmd --state
(2)重新加载配置:firewall-cmd --reload
(3)查看开放的端口:firewall-cmd --list-ports
(4)开启防火墙端口:firewall-cmd --zone=public --add-port=80/tcp --permanent
命令含义:
–zone #作用域
–add-port=9200/tcp #添加端口,格式为:端口/通讯协议
–permanent #永久生效,没有此参数重启后失效
注意:添加端口后,必须用命令firewall-cmd --reload重新加载一遍才会生效
(5)关闭防火墙端口:firewall-cmd --zone=public --remove-port=9200/tcp --permanent