In <[EMAIL PROTECTED]>, on 04/01/03 
   at 09:37 PM, Sam Varshavchik <[EMAIL PROTECTED]> said:

>Jacob S. Barrett writes:

>> I have noticed that when logging into Courier IMAP that it ignores 
>> password characters past 8.  For example, if my password was "123456789" 
>> I could login with "1234567890".  Also, if my password was "1234567890" 
>> I could login with "123456789" or "123456789X".  Is this normal 
>> behavior?  I searched around on Google and found nothing in previous 
>> posts that suggest this is normal, but maybe I missed something.

>Traditional UNIX system passwords are eight characters, or less.  Excess 
>characters are ignored.

If, as some do, one is using the domain names as UID's in a virtual
hosting environment, and/or wants passphrase (longer strings) capability,
you can use a patch to bump both UID's and passwords to, for example, ca
63-64 characters.  

*IF* users adhere to longer than standard UID's and passwords, this can
have the side effect of complicating a brute-force dictionary attack by
several orders of binary magnitude... 

But it requires a system recompile, and *IS* no longer UNIX legacy
standard, so needs doing at each system upgrade...... 

YMMV.

Bill Hacker



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