Hi,

i'm not aware of the changes to IIS 5.1 (shame on me ;-)

but

IIS 5.0 does NOT need to run on a DC either.

bye
dominick baier
ernw

-----Ursprungliche Nachricht-----
Von: dotnet discussion [mailto:[EMAIL PROTECTED]]Im Auftrag von
John Lam
Gesendet: Montag, 29. April 2002 00:21
An: [EMAIL PROTECTED]
Betreff: Re: [DOTNET] AW: [DOTNET] Windows authentication and Netscape -
How Digest Auth works


This is only true in pre-XP implementations. In Windows XP, Digest
Authentication is implemented as a Security Support Provider (SSP).
Under XP, the IIS 5.1 web server does not need to run on a DC (actually
you can't since that's a server function, and Windows .NET Server isn't
released yet).

-John
http://www.iunknown.com


-----Original Message-----
From: Dominick Baier [mailto:[EMAIL PROTECTED]]
Sent: Sunday, April 28, 2002 5:34 PM
To: [EMAIL PROTECTED]
Subject: [DOTNET] AW: [DOTNET] Windows authentication and Netscape - How
Digest Auth works

Hi,

to clear things up -

digest authentication works in the following way -

the browser sends an username and a hashed password to IIS - IIS checks
this
username/password against a domain account - to accomplish this IIS
needs
access to Active Directory - so IIS has to be member of the
corresponding
domain.

Active Directory stores passwords in its domain database (extensible
storage
engine). passwords are usually stored in this database using a
non-reversible hash.

The hash used by digest auth and AD is different.

So IIS has to retrieve the user-password in clear text to hash it and
compare the hash to the data sent by the browser.

A pre-requisite for using digest auth is to change AD to use "reversible
hashs" - to make it possible for IIS to retrieve clear text.

This is a big security issue.

bye
dominick baier
ernw

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