centos7 防火牆及端口

查看防火牆狀態：web firewall-cmd -- state 關閉防火牆：sql systemctl stop firewall.service 開啓防火牆：ruby systemctl start firewall.service 禁止開機啓動：服務器 systemctl disable firewall.service 查看開放的端口：tcp firewall-cmd --list-po

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