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pam_userdb (8)
  • >> pam_userdb (8) ( Linux man: Команды системного администрирования )
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    NAME

    pam_userdb - PAM module to authenticate against a db database
     
    

    SYNOPSIS

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

    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.
    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.
     

    MODULE SERVICES PROVIDED

    The services auth and account are supported.  

    RETURN VALUES

    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.
     

    EXAMPLES

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

    SEE ALSO

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

    AUTHOR

    pam_userdb was written by Cristian Gafton >[email protected]<.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    MODULE SERVICES PROVIDED
    RETURN VALUES
    EXAMPLES
    SEE ALSO
    AUTHOR


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