linux 下设置防火墙容许得端口

linux7以上使用   systemctl status firewalld 查看状态 systemctl enable firewalld 启用防火墙 永久 systemctl stop firewalld 中止防火墙 重启后失效 systemctl disable firewalld 禁用防火墙 永久 systemctl start firewalld 启动linux systemctl r

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