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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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