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pam_unix (8)
  • pam_unix (5) ( Solaris man: Форматы файлов )
  • pam_unix (5) ( Русские man: Форматы файлов )
  • pam_unix (5) ( Linux man: Форматы файлов )
  • >> pam_unix (8) ( FreeBSD man: Команды системного администрирования )
  • pam_unix (8) ( Linux man: Команды системного администрирования )

  • BSD mandoc
     

    NAME

    
    
    pam_unix
    
     - UNIX PAM module
    
     
    

    SYNOPSIS

    [service-name ] module-type control-flag pam_unix [options ]  

    DESCRIPTION

    The UNIX authentication service module for PAM, provides functionality for three PAM categories: authentication, account management, and password management. In terms of the module-type parameter, they are the ``auth '' ``account '' and ``password '' features. It also provides a null function for session management.  

    UNIX

    The UNIX authentication component provides functions to verify the identity of a user (Fn pam_sm_authenticate ) which obtains the relevant passwd(5) entry. It prompts the user for a password and verifies that this is correct with crypt(3).

    The following options may be passed to the authentication module:

    debug
    syslog(3) debugging information at LOG_DEBUG level.
    use_first_pass
    If the authentication module is not the first in the stack, and a previous module obtained the user's password, that password is used to authenticate the user. If this fails, the authentication module returns failure without prompting the user for a password. This option has no effect if the authentication module is the first in the stack, or if no previous modules obtained the user's password.
    try_first_pass
    This option is similar to the use_first_pass option, except that if the previously obtained password fails, the user is prompted for another password.
    auth_as_self
    This option will require the user to authenticate himself as the user given by getlogin(2), not as the account they are attempting to access. This is primarily for services like su(1), where the user's ability to retype their own password might be deemed sufficient.
    nullok
    If the password database has no password for the entity being authenticated, then this option will forgo password prompting, and silently allow authentication to succeed.
    local_pass
    Use only the local password database, even if NIS is in use. This will cause an authentication failure if the system is configured to only use NIS.
    nis_pass
    Use only the NIS password database. This will cause an authentication failure if the system is not configured to use NIS.

     

    UNIX

    The UNIX account management component provides a function to perform account management, pam_sm_acct_mgmt (.);
    The function verifies that the authenticated user is allowed to log into the local user account by checking the following criteria:

    locked status of the account compatible with
    pw(8) lock
    the password expiry date from
    passwd(5);
    login.conf5
    restrictions on the remote host, login time, and tty.

    The following options may be passed to the management module:

    debug
    syslog(3) debugging information at LOG_DEBUG level.

     

    UNIX

    The UNIX password management component provides a function to perform password management, pam_sm_chauthtok (.);
    The function changes the user's password.

    The following options may be passed to the password module:

    debug
    syslog(3) debugging information at LOG_DEBUG level.
    no_warn
    suppress warning messages to the user. These messages include reasons why the user's authentication attempt was declined.
    local_pass
    forces the password module to change a local password in favour of a NIS one.
    nis_pass
    forces the password module to change a NIS password in favour of a local one.

     

    FILES

    /etc/master.passwd
    default UNIX password database.

     

    SEE ALSO

    passwd(1), getlogin(2), crypt(3), getpwent(3), syslog(3), nsswitch.conf5, passwd(5), pam(8), pw(8), yp(8)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    Ux Ss Authentication Module
    Ux Ss Account Management Module
    Ux Ss Password Management Module
    FILES
    SEE ALSO


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