Edit: /usr/share/doc/pam/txts/README.pam_lastlog (2597B)
pam_lastlog -- PAM module to display date of last login and perform inactive
account lock out
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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. This option does not affect display of bad
login attempts.
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=
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.
unlimited
If the fsize limit is set, this option can be used to override it,
preventing failures on systems with large UID values that lead
lastlog to become a huge sparse file.
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
AUTHOR
pam_lastlog was written by Andrew G. Morgan .
Inactive account lock out added by Tomas Mraz .