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PAM_LASTLOG(8)                                     Linux-PAM Manual                                    PAM_LASTLOG(8)



NAME
       pam_lastlog - PAM module to display date of last login and perform inactive account lock out

SYNOPSIS
       pam_lastlog.so [debug] [silent] [never] [nodate] [nohost] [noterm] [nowtmp] [noupdate] [showfailed]
                      [inactive=<days>]

DESCRIPTION
       pam_lastlog is a PAM module to display a line of information about the last login of the user. In addition,
       the module maintains the /var/log/lastlog file.

       Some applications may perform this function themselves. In such cases, this module is not necessary.

       If the module is called in the auth or account phase, the accounts that were not used recently enough will be
       disallowed to log in. The check is not performed for the root account so the root is never locked out.

OPTIONS
       debug
           Print debug information.

       silent
           Don't inform the user about any previous login, just update the /var/log/lastlog file.

       never
           If the /var/log/lastlog file does not contain any old entries for the user, indicate that the user has
           never previously logged in with a welcome message.

       nodate
           Don't display the date of the last login.

       noterm
           Don't display the terminal name on which the last login was attempted.

       nohost
           Don't indicate from which host the last login was attempted.

       nowtmp
           Don't update the wtmp entry.

       noupdate
           Don't update any file.

       showfailed
           Display number of failed login attempts and the date of the last failed attempt from btmp. The date is not
           displayed when nodate is specified.

       inactive=<days>
           This option is specific for the auth or account phase. It specifies the number of days after the last
           login of the user when the user will be locked out by the module. The default value is 90.

MODULE TYPES PROVIDED
       The auth and account module type allows to lock out users which did not login recently enough. The session
       module type is provided for displaying the information about the last login and/or updating the lastlog and
       wtmp files.

RETURN VALUES

       PAM_IGNORE
           There was an error during reading the lastlog file in the auth or account phase and thus inactivity of the
           user cannot be determined.

EXAMPLES
       Add the following line to /etc/pam.d/login to display the last login time of an user:

               session  required  pam_lastlog.so nowtmp


       To reject the user if he did not login during the previous 50 days the following line can be used:

               auth  required  pam_lastlog.so inactive=50


FILES
       /var/log/lastlog
           Lastlog logging file

SEE ALSO
       pam.conf(5), pam.d(5), pam(8)

AUTHOR
       pam_lastlog was written by Andrew G. Morgan <[email protected]>.

       Inactive account lock out added by Tomáš Mráz <[email protected]>.



Linux-PAM Manual                                      09/19/2013                                       PAM_LASTLOG(8)