添加防火墙开放端口 :::info firewall -cmd —permanent —add-port=[端口号]/[协议] ::: 关闭防火墙端口 :::info firewall -cmd —permanent —remove-port=[端口号]/[协议] ::: 重新载入使防火墙生效 :::info firewall-cmd —reload ::: 查询端口是否开放 :::info firewall-cmd —query-port=[端口号]/[协议] ::: 列出所有开放端口 :::info firewall-cmd —zone=public —list-prots :::