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.db based passwd/shadow files for Linux (BSDi style)






  Hi,



   I am looking for a .db based authentication files solution for Linux,
much like the BSDi solution. My problem to solve is a mail server with
about 42k-50k users, and the issue is delivering the best possible
performance. NIS on Linux reeks for the volume of mail I am talking about
(also pop3/imap/pops/imaps), and LDAP is not an option at the current
installation, nor is kerberos.

   NIS was tested and it's performance on Linux (and Solaris for that
matter) is not satisfactory. We're currently using a plaintext 40k users
file, but the serial lookup in the files, despite nscd caching, is still
non-optimal, and also not serving everyone in the same manner (longer
lookups the more you have to go down the file). Yes, I have considered
using a random algorithm in order to redistribute the users in the file in
a random manner on each update, but this is an overkill.

   So, if anyone knows of a solution that allows PAM to use .db based
authentication files, please share it with me.


--Ariel

--
Ariel Biener
e-mail: ariel@post.tau.ac.il
PGP(6.5.8) public key http://www.tau.ac.il/~ariel/pgp.html


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