powershell 管理防火墙(windows server 2012)

https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/hh831755(v=ws.11) 创建允许telnet的防火墙规则 Netsh netsh advfirewall firewall add rule name="Allow Inbound Telne

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