pam_lastlog - PAM module to display date of last login and perform inactive account lock out
pam_lastlog.so [debug] [silent] [never] [nodate] [nohost] [noterm] [nowtmp] [noupdate] [showfailed] [inactive=<days>] [unlimited]
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.
The module checks LASTLOG_UID_MAX option in /etc/login.defs and does not update or display last login records for users with UID higher than its value. If the option is not present or its value is invalid, no user ID limit is applied.
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. It is also not performed for users with UID higher than the LASTLOG_UID_MAX value.
MODULE TYPES PROVIDED
The auth and account module type allows one to lock out users who 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.
Add the following line to /etc/pam.d/login to display the last login time of a 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
pam_lastlog was written by Andrew G. Morgan <firstname.lastname@example.org>.
Inactive account lock out added by Tomáš Mráz <email@example.com>.