DOCUMENT:Q103827  04-NOV-1993  [W_NTAS]
TITLE   :RAS and SFM Passwords Are Not Case Sensitive
PRODUCT :Microsoft Windows NT Advanced Server
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:BUGLIST3.10

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The information in this article applies to:
 
 - Microsoft Windows NT Advanced Server version 3.1
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SYMPTOMS
========

Windows NT Remote Access Service (RAS) and Services for Macintosh
(SFM) passwords are not case sensitive.

CAUSE
=====

RAS and SFM do not use the Windows NT password authentication scheme.
Instead, these services use the same password authentication model
that is used by Microsoft LAN Manager. Unlike Windows NT passwords,
LAN Manager passwords are not case sensitive. Therefore, SFM and RAS
client passwords ignore case.

Windows NT stores both a LAN Manager and Windows NT version of your
password in its Security Accounts Manager (SAM) database. RAS and SFM
both have the option to use Windows NT or LAN Manager password
authentication. In Windows NT and Windows NT Advanced Server version
3.1, they always choose LAN Manager password authentication even when
connecting to another Windows NT computer.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT Advanced
Server version 3.1. We are researching this problem and will post new
information here in the Microsoft Knowledge Base as it becomes
available.

MORE INFORMATION
================

For more information on user authentication in Windows NT, how
passwords are stored, RAS password authentication, and the differences
between LAN Manager and Windows NT, query on the following words in
the Microsoft Knowledge Base:

   authentication lan
  
Additional reference words: 3.10 
KBCategory:
KBSubCategory: ntrmt

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Copyright Microsoft Corporation 1993.