Centos7防火牆的關閉、開啓、開機定義

關閉防火牆：service systemctl stop firewalld.service防火牆 開啓防火牆：margin systemctl start firewalld.servicetop 關閉開機啓動：di systemctl disable firewalld.servicevi 開啓開機啓動：co systemctl enable firewalld.servicebackgrou

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