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pam_securetty (8)
  • pam_securetty (8) ( FreeBSD man: Команды системного администрирования )
  • >> pam_securetty (8) ( Linux man: Команды системного администрирования )
  •  

    NAME

    pam_securetty - Limit root login to special devices
     
    

    SYNOPSIS

    pam_securetty.so [debug]
     

    DESCRIPTION

    pam_securetty is a PAM module that allows root logins only if the user is logging in on a "secure" tty, as defined by the listing in /etc/securetty. pam_securetty also checks to make sure that /etc/securetty is a plain file and not world writable.

    This module has no effect on non-root users and requires that the application fills in the PAM_TTY item correctly.

    For canonical usage, should be listed as a required authentication method before any sufficient authentication methods.  

    OPTIONS

    debug
    Print debug information.
     

    MODULE SERVICES PROVIDED

    Only the auth service is supported.  

    RETURN VALUES

    PAM_SUCCESS
    The user is allowed to continue authentication. Either the user is not root, or the root user is trying to log in on an acceptable device.
    PAM_AUTH_ERR
    Authentication is rejected. Either root is attempting to log in via an unacceptable device, or the /etc/securetty file is world writable or not a normal file.
    PAM_INCOMPLETE
    An application error occurred. pam_securetty was not able to get information it required from the application that called it.
    PAM_SERVICE_ERR
    An error occurred while the module was determining the user's name or tty, or the module could not open /etc/securetty.
    PAM_IGNORE
    The module could not find the user name in the /etc/passwd file to verify whether the user had a UID of 0. Therefore, the results of running this module are ignored.
     

    EXAMPLES

    auth  required  pam_securetty.so
    auth  required  pam_unix.so
          
    

     

    SEE ALSO

    securetty(5), pam.conf(5), pam.d(8), pam(8)  

    AUTHOR

    pam_securetty was written by Elliot Lee <[email protected]>.


     

    Index

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


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