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pam_userdb -- PAM module to authenticate against a db database

   --------------------------------------------------------------------------

DESCRIPTION

   The pam_userdb module is used to verify a username/password pair against
   values stored in a Berkeley DB database. The database is indexed by the
   username, and the data fields corresponding to the username keys are the
   passwords.

OPTIONS

   crypt=[crypt|none]

           Indicates whether encrypted or plaintext passwords are stored in
           the database. If it is crypt, passwords should be stored in the
           database in crypt(3) form. If none is selected, passwords should
           be stored in the database as plaintext.

   db=/path/database

           Use the /path/database database for performing lookup. There is no
           default; the module will return PAM_IGNORE if no database is
           provided. Note that the path to the database file should be
           specified without the .db suffix.

   debug

           Print debug information.

   dump

           Dump all the entries in the database to the log. Don't do this by
           default!

   icase

           Make the password verification to be case insensitive (ie when
           working with registration numbers and such). Only works with
           plaintext password storage.

   try_first_pass

           Use the authentication token previously obtained by another module
           that did the conversation with the application. If this token can
           not be obtained then the module will try to converse. This option
           can be used for stacking different modules that need to deal with
           the authentication tokens.

   use_first_pass

           Use the authentication token previously obtained by another module
           that did the conversation with the application. If this token can
           not be obtained then the module will fail. This option can be used
           for stacking different modules that need to deal with the
           authentication tokens.

   unknown_ok

           Do not return error when checking for a user that is not in the
           database. This can be used to stack more than one pam_userdb
           module that will check a username/password pair in more than a
           database.

   key_only

           The username and password are concatenated together in the
           database hash as 'username-password' with a random value. if the
           concatenation of the username and password with a dash in the
           middle returns any result, the user is valid. this is useful in
           cases where the username may not be unique but the username and
           password pair are.

EXAMPLES

 auth  sufficient pam_userdb.so icase db=/etc/dbtest


AUTHOR

   pam_userdb was written by Cristian Gafton >gafton@redhat.com<.

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