centos7开放端口(以8080为例)
1、查看防火墙状态:firewall-cmd —state;
若是未启动(not running),先启动,若已启动,直接下一步,启动命令:systemctl start firewalld.service;
2、开启8080端口:firewall-cmd —zone=public —add-port=8080/tcp —permanent;
3、重启防火墙:systemctl restart firewalld.service;
4、重新加载配置:firewall-cmd —reload;
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