Can't access FTP even the ports are open in Windows Firewall

buhong

Environment:
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　　Windows Server 2008 R2 / FTP
　　
　　Problem/Question:
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　　Installed and configured FTP on Windows 2008 R2. It works if the Windows Firewall is disabled, however if enabled the firewall, no one could access the FTP.
　　
Cause analysis:
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This issue can occur if Windows firewall has been blocked the FTP ports. Note: By default the Windows firewall will block the FTP traffic. Here, we need to manually enable the FTP ports.

Solution/Workaround:
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·Run the following commands on the FTP server to open the related FTP ports:
·
Using Windows Firewall with non-secure FTP traffic
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netsh advfirewall firewall add rule name="FTP (non-SSL)" action=allow protocol=TCP dir=in localport=21
netsh advfirewall set global StatefulFtp enable

Using Windows Firewall with secure FTP over SSL (FTPS) traffic
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netsh advfirewall firewall add rule name="FTP for IIS7" service=ftpsvc action=allow protocol=TCP dir=in
netsh advfirewall set global StatefulFtp disable

References:
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How to Configure Windows Firewall for a Passive Mode FTP Server
http://technet.microsoft.com/hu-hu/library/dd421710(WS.10).aspx

Configuring FTP Firewall Settings
http://learn.iis.net/page.aspx/309/configuring-ftp-firewall-settings/