Re: preventing weak passwords

1999-07-09 Thread Dave Thayer
On Thu, Jul 08, 1999 at 07:39:44AM +0800, Chad A. Adlawan wrote:

 
 hello all,
   im really sick of almost having to remind my users to use 
   non-dictionary passwords.  we provide a web based interface to change
   their passwords and so the checking done by executing /usr/bin/passwd
   is not implemented.

   im thinking of dictionary cracking my users passwords so that i can
   narrow down on those only on those whos passwords need fixing, that 
   is, only those whose passwords can be dictionary cracked.

   does anyone know of an application that can do what i want ?

The first edition of Programming perl had an example script for checking
passwords, but it was dropped in the current edition. Fortunately, O'Reilly
still has the example tarball on their FTP site. Look for ch6/passwd in

ftp://ftp.ora.com/pub/examples/nutshell/programming_perl/perl.tar.Z

HTH,

Your Pal Dave

-- 
Dave Thayer
Denver, Colorado USA
[EMAIL PROTECTED] [EMAIL PROTECTED]


Re: preventing weak passwords

1999-07-09 Thread Carl Mummert

You can get better versions of passwd(1) that prevent users
from setting bad passwords in teh first place - we use
one called npasswd, which works a little TOO well 
(it screens out my attempts to give new users simple passwords).

I can give you the source if you need it, but there is a distro site out
there. 

Carl


Re: preventing weak passwords

1999-07-09 Thread Jean Pierre LeJacq
On Thu, 8 Jul 1999, Chad A. Adlawan wrote:

   im really sick of almost having to remind my users to use
   non-dictionary passwords.  we provide a web based interface to
   change their passwords and so the checking done by executing
   /usr/bin/passwd is not implemented.  im thinking of dictionary
   cracking my users passwords so that i can narrow down on those
   only on those whos passwords need fixing, that is, only those
   whose passwords can be dictionary cracked.  does anyone know of
   an application that can do what i want ?

You may want to consider the debian package for cracklib2.  This is a
library that will check the quality of the passwords as they are set
by the user so it is proactive.

Alternately, the author of cracklib2 has another program named crack
that will check the quality of existing passwords.  Not packaged in
debian yet.

-- 
Jean Pierre



preventing weak passwords

1999-07-08 Thread Chad A. Adlawan
hello all,
  im really sick of almost having to remind my users to use non-dictionary 
passwords.  we provide a web based interface to change their passwords and so 
the checking done by executing /usr/bin/passwd is not implemented.
  im thinking of dictionary cracking my users passwords so that i can narrow 
down on those only on those whos passwords need fixing, that is, only those 
whose passwords can be dictionary cracked.
  does anyone know of an application that can do what i want ?
TIA,
Chad A. Adlawan
System/Network Admin
Pixelia Multimedia Co.
Cebu City Philippines