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PAM_LASTLOG2(8) System Administration PAM_LASTLOG2(8)

NAME

pam_lastlog2 - PAM module to display date of last login

SYNOPSIS

pam_lastlog2.so [debug] [silent] [silent_if=<services>] [database=<file>]

DESCRIPTION

pam_lastlog2 is a PAM module to display a line of information about the last login of the user. The module uses the /var/lib/lastlog/lastlog2.db database file to store all informations.

Compared to pam_lastlog this PAM module is Y2038 safe and uses sqlite3 to store the information.

OPTIONS

debug

Print debug information.

silent

Avoid all messages except errors and don’t inform the user about any previous login, only update the /var/lib/lastlog/lastlog2.db database.

silent_if=<services>

The argument services is a comma separated list of PAM services. If a service is listed here, the last login message will not be shown.

database=<file>

Use file instead of /var/lib/lastlog/lastlog2.db.

MODULE TYPES PROVIDED

The session module type is provided for displaying the information about the last login and updating the lastlog file.

RETURN VALUES

PAM_SUCCESS

Everything was successful.

PAM_SERVICE_ERR

Internal service module error. This includes error reading from or writing to the database.

PAM_USER_UNKNOWN

User not known.

PAM_IGNORE

Returned by service types which do nothing.

EXAMPLES

Add the following line to e.g. /etc/pam.d/login to display the last login time of a user:

session optional pam_lastlog2.so silent_if=gdm,gdm-password

It is up to the administrator to decide if the user can login (optional/required) when pam_lastlog2 has returned an error.

AUTHOR

pam_lastlog2 was written by Thorsten Kukuk <kukuk@suse.com>.

SEE ALSO

liblastlog2(3), pam.conf(5), pam.d(5), pam(8)

REPORTING BUGS

For bug reports, use the issue tracker at <https://github.com/util-linux/util-linux/issues>.

AVAILABILITY

The pam_lastlog2 library is part of the util-linux package since version 2.40. It can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.

2024-05-01 util-linux 2.40.1