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Q216760: IIS: FTP Users Will Still Be Prompted for Credentials Even From

Article: Q216760
Product(s): Internet Information Server
Version(s): winnt:3.0,4.0,5.0
Operating System(s): 
Keyword(s): 
Last Modified: 08-MAY-1999

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The information in this article applies to:

- Microsoft Internet Information Server versions 3.0, 4.0, 5.0 
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SYMPTOMS
========

When users connect to an IIS FTP server from a restricted IP address, they will
still be prompted for credentials.
For example, you have an FTP site at 192.168.1.1 with IP Address and Domain
Restrictions, by default, set to denied access. If a user from a denied IP
connects to your FTP server, he will be prompted for credentials. Once the user
logs into the server, he will receive an access denied message from the server.

CAUSE
=====

Once an FTP connection is established, a client/server handshake must take place
before anything else can be done. Part of this handshake is obtaining the
username and password to be used for the connection. Once the necessary
handshake is finished, then the IP restrictions are checked.
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Keywords          :  
Technology        : kbiisSearch kbiis500 kbiis400 kbiis300
Version           : winnt:3.0,4.0,5.0

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