IIS FTP Server - 500 Invalid PORT Command.

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Author 500 Invalid PORT Command.
Jacob C. Mann

2005-09-18, 5:54 pm

I am getting this error on any FTP site I try to setup that isn't running on
port 21. Username and passwords are correct, as just by changing the port,
everything works fine.

I am running Windows Firewall, and have IPSec to block a few ports in one
direction (incoming SMTP for example)

I don't know how to allow the FTP service through the firewall, or to know
which port is going to be used when a client connects. I also don't
understand how port 21 works every single time!

So confused....
Bernard Cheah [MVP]

2005-09-19, 2:49 am

Sounds like your NAT device issue again.
FTP Error: 500 Invalid PORT Command
http://support.microsoft.com/?id=281193
--
Regards,
Bernard Cheah
http://www.iis-resources.com/
http://www.iiswebcastseries.com/
http://www.msmvps.com/bernard/


"Jacob C. Mann" <Jacob C. Mann@discussions.microsoft.com> wrote in message
news:9F4FE70C-A228-45C6-8CFC-35BF160C49E7@microsoft.com...
>I am getting this error on any FTP site I try to setup that isn't running
>on
> port 21. Username and passwords are correct, as just by changing the
> port,
> everything works fine.
>
> I am running Windows Firewall, and have IPSec to block a few ports in one
> direction (incoming SMTP for example)
>
> I don't know how to allow the FTP service through the firewall, or to know
> which port is going to be used when a client connects. I also don't
> understand how port 21 works every single time!
>
> So confused....



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