centos7配置ＬＡＭＰ過程問題及解決

防火牆 採用centos7的防火牆命令： 開啓：systemctl start firewalld 關閉：systemctl stop firewalld 重啓：systemctl restart firewalld 現在狀態：firewall-cmd –state 開放端口：sudo firewall-cmd –zone=public –add-port=3000/tcp –permanent

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