1.查看防火墙状态
systemctl status firewalld
2.暂时关闭防火墙
systemctl stop firewalld
3. 永久关闭防火墙
systemctl disable firewalld
4.开启防护墙
systemctl start firewalld
5.永久开启防火墙
systemctl enable firewalld
6.开放指定端口(如:8080)
firewall-cmd --zone=public --add-port=8080/tcp --permanent
7.关闭指定端口(如:8080)
firewall-cmd --zone=public --remove-port=8080/tcp --permanent
8.立即生效
firewall-cmd --reload
9.查看开放端口
firewall-cmd --zone=public --list-ports
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