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pam_lastlog

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_SUCCESS
	   Everything was successful.

       PAM_SERVICE_ERR
	   Internal service module error.

       PAM_USER_UNKNOWN
	   User not known.

       PAM_AUTH_ERR
	   User locked out in the auth or account phase due to inactivity.

       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 <morgan@kernel.org>.

       Inactive account lock out added by Toma Mraz <tm@t8m.info>.

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