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   pam_userdb    ( 8 )

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Имя (Name)

pam_userdb - PAM module to authenticate against a db database

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Синопсис (Synopsis)

pam_userdb.so db=/path/database [debug] [crypt=[crypt|none]] [icase] [dump] [try_first_pass] [use_first_pass] [unknown_ok] [key_only]

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Описание (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.

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Параметры (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.

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Предоставляемые типы модулей (Module types provided)

The auth and account module types are provided.

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Возвращаемое значение (Return value)

PAM_AUTH_ERR Authentication failure.

PAM_AUTHTOK_RECOVERY_ERR Authentication information cannot be recovered.

PAM_BUF_ERR Memory buffer error.

PAM_CONV_ERR Conversation failure.

PAM_SERVICE_ERR Error in service module.

PAM_SUCCESS Success.

PAM_USER_UNKNOWN User not known to the underlying authentication module.

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Примеры (Examples)

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

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Смотри также (See also)

crypt(3), pam.conf(5), pam.d(5), pam(8)

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