IIS FTP Server - 550 Access is denied, but only from some computers

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Author 550 Access is denied, but only from some computers
JSavage@data-mate.com

2005-01-24, 5:52 pm

I have an IIS FTP server on a Windows Server 2003 EE box. We have a
number of clients that all log into the FTP server using the exact same
username and password.

On one particular clients network there are two computers from which
they receive "550 Access is denied" errors when executing 'get', 'put'
and 'mkdir' commands. Other FTP commands such as 'ls' and 'cd' work and
they log in successfully. They are logging into FTP using the same
username and password as all other clients, so should have the same
rights on our server as all other clients.

What puzzles me is that the "550 Access is denied" error looks to the
client like it is coming from our server, but the MKDIR command isn't
logged on our server. It is as if there is an intermediate firewall
that is stripping out those specific FTP commands and sending back the
error without forwarding it to our FTP server.

Am I completely of the mark? Does anyone have any ideas on this? I've
tried everything I can think of and have come up empty. Any help would
be appreciated.

Thanks in advance,
John

Bernard

2005-02-01, 2:47 am

Weird. what ftp client software you using ?
have you try use ftp.exe command line tool ?


--
Regards,
Bernard Cheah
http://www.tryiis.com/
http://support.microsoft.com/
http://www.msmvps.com/bernard/



<JSavage@data-mate.com> wrote in message
news:1106597407.921695.160020@z14g2000cwz.googlegroups.com...
>I have an IIS FTP server on a Windows Server 2003 EE box. We have a
> number of clients that all log into the FTP server using the exact same
> username and password.
>
> On one particular clients network there are two computers from which
> they receive "550 Access is denied" errors when executing 'get', 'put'
> and 'mkdir' commands. Other FTP commands such as 'ls' and 'cd' work and
> they log in successfully. They are logging into FTP using the same
> username and password as all other clients, so should have the same
> rights on our server as all other clients.
>
> What puzzles me is that the "550 Access is denied" error looks to the
> client like it is coming from our server, but the MKDIR command isn't
> logged on our server. It is as if there is an intermediate firewall
> that is stripping out those specific FTP commands and sending back the
> error without forwarding it to our FTP server.
>
> Am I completely of the mark? Does anyone have any ideas on this? I've
> tried everything I can think of and have come up empty. Any help would
> be appreciated.
>
> Thanks in advance,
> John
>



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