case-problem in passwords
Tim Villa - faculties
tim at ecel.uwa.edu.au
Fri Aug 8 00:39:12 GMT 1997
> From: Thomas KIRCHTAG <tkircht at qspr03.tuwien.ac.at>
> Subject: case-problem in passwords
> It all works OK and domain logons from Win95 do what they're supposed to,
> except if I use mixed-case passwords!
> My own password works fine, as long as I do NOT use the samba box as
> domain controller (logon controller).
Use the "password level" setting in smb.conf to fix this problem.
>From the man page:
password level (G)
Some client/server combinations have difficulty with mixed-
case passwords. One offending client is Windows for Work-
groups, which for some reason forces passwords to upper case
when using the LANMAN1 protocol, but leaves them alone when
This parameter defines the maximum number of characters that
may be upper case in passwords.
For example, say the password given was "FRED". If password
level is set to 1 (one), the following combinations would be
tried if "FRED" failed: "Fred", "fred", "fRed", "frEd",
"freD". If password level was set to 2 tried: "FRed",
"FrEd", "FreD", "fREd", "fReD", "frED". And so on.
The higher value this parameter is set to the more likely it
is that a mixed case password will be matched against a sin-
gle case password. However, you should be aware that use of
this parameter reduces security and increases the time taken
to process a new connection.
A value of zero will cause only two attempts to be made -
the password as is and the password in all-lower case.
If you find the connections are taking too long with this
option then you probably have a slow crypt() routine. Samba
now comes with a fast "ufc crypt" that you can select in the
Makefile. You should also make sure the PASSWORD_LENGTH
option is correct for your system in local.h and includes.h.
On most systems only the first 8 chars of a password are
significant so PASSWORD_LENGTH should be 8, but on some
longer passwords are significant. The includes.h file tries
to select the right length for your system.
password level = 0
password level = 4
Tim Villa Faculties of Economics & Commerce, Education and Law
Network/Systems Officer The University of Western Australia
Phone: +61-08-9380-1796 Fax: +61-08-9380-1068
<mailto:tim at ecel.uwa.edu.au> <http://ecel-tim.ecel.uwa.edu.au>
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