查看firewall服务状态：systemctl status firewalld
查看firewall的状态：firewall-cmd –state
查看防火墙规则：firewall-cmd –list-all
查询端口是否开放：firewall-cmd –query-port=19999/tcp
开放19999端口：firewall-cmd –permanent –add-port=19999/tcp
移除端口：firewall-cmd –permanent –remove-port=8080/tcp
重启防火墙(修改配置后要重启防火墙)： firewall-cmd –reload
Last Update:
2023-01-16
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