查看防火墙某个端口是否开放:
firewall-cmd --query-port=80/tcp
开放防火墙端口80:
firewall-cmd --zone=public --add-port=80/tcp --permanent
关闭80端口:
firewall-cmd --zone=public --remove-port=80/tcp --permanent
配置立即生效:
firewall-cmd --reload
查看防火墙状态:
systemctl status firewalld
关闭防火墙:
systemctl stop firewalld
打开防火墙:
systemctl start firewalld
开放一段端口:
firewall-cmd --zone=public --add-port=8121-8124/tcp --permanent
查看开放的端口列表:
firewall-cmd --zone=public --list-ports
参考链接 https://www.cnblogs.com/suhq/p/13539287.html