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iis ftp : wierd problem!


Vasu
11/7/2005 12:00:00 AM
Hello,
I am using Windows Server 2003 which is running AD, DNS, DHCP, RRAS and
IIS. I also have two network adapters on server, one connected to my local
LAN and other connected to private DSL internet line. For my local network I
have ip addresses on the clients ranging from 192.168.0.1 to 192.168.0.100.
Now recently I setup IIS to support web based RDP and this works fine from
local LAN and also outside my network through internet. But now I recently
setup FTP using the following settings:
IP Address to use: All Unassigned
Port: 21 (Default)

User Isolation: (Here actually I wanted the "Isolate Users" option but since
this was giving problem I tried with normal default option)
Do not isolate users (Users can access the FTP home directory of other
users)

Path: to a local folder with Security permissions set on folder as follows:
Administrators: Full Control
System: Full Control
Authenticated Users: Read and Execute, List Folder Contents, Read,
Write

FTP Permissions: Read and Write

Now I am able to access this FTP Server in my local LAN using the IP address
192.168.0.x, but I am having trouble when I try to access the FTP Server
through its DSL Provided IP address. I am getting the following Error
Message:

Message Window Title: FTP Folder Error
Details:
200 Type set to A.
227 Entering Passive Mode (85.176.113.25,12,81)
426 Connection closed; transfer aborted

The strange thing is if I try to connect to the ftp server from local
network, everything works fine. Can anyone please tell me what did I miss.

Thanks in advance.
Vasu

jbongran
11/9/2005 12:00:00 AM
[quoted text, click to view]

Surely a firewall issue, since after the pasv command is issued, the client
tries to connect to an unpriviledged port (> to 1024) of your ftp server.
Could you try from a command line to ftp at your server, after opening port
20 from your server to the outside ?

Vasu
11/10/2005 12:00:00 AM
Yes, from command line ftp works fine. The problem is only when i try
connecting using Internet Explorer or Filezilla.
And about firewall, in my RAS/NAT settings i have checked the "FTP Server"
and set the private address to my server ip address.
So , setting this shouldn't forward the request to the FTP Server???

Vasu

JimMcGowanInlet
11/10/2005 12:00:00 AM

You may want to check out

START/PROGRAMS/ADMINISTRATIVE TOOLS\Routing and Remote Access
look for an object called "Nat Basic Firewall".

Check the properties on this object. It caused me problems on my bo
and I deleted the object. Microsoft has some internal docs relating t
problems with RRAS and SP1. But if your server is a nat server you ma
not be able to do that. I also came across some articles on Dual Ni
problems. I think it suggested KB89806
http://support.microsoft.com/defaul...kb;en-us;898060

Ji

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JimMcGowanInle
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