centos 7 firewall(防火牆)開放端口/刪除端口/查看端口

centos 7 firewall(防火牆)開放端口/刪除端口/查看端口 1.firewall的基本啓動/中止/重啓命令centos #centos7啓動防火牆 systemctl start firewalld.service #centos7中止防火牆/關閉防火牆 systemctl stop firewalld.service #centos7重啓防火牆 systemctl restart

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