The options which apply to the faillog command are:
-a, --all
Display (or act on) faillog records for all users having an
entry in the faillog database.
The range of users can be restricted with the -u option.
In display mode, this is still restricted to existing users
but forces the display of the faillog entries even if they
are empty.
With the -l, -m, -r, -t options, the users' records are
changed, even if the user does not exist on the system. This
is useful to reset records of users that have been deleted or
to set a policy in advance for a range of users.
-h, --help
Display help message and exit.
-l, --lock-secs SEC
Lock account for SEC seconds after failed login.
Write access to /var/log/faillog is required for this option.
-m, --maximum MAX
Set the maximum number of login failures after the account is
disabled to MAX.
Selecting a MAX value of 0 has the effect of not placing a
limit on the number of failed logins.
The maximum failure count should always be 0 for root to
prevent a denial of services attack against the system.
Write access to /var/log/faillog is required for this option.
-r, --reset
Reset the counters of login failures.
Write access to /var/log/faillog is required for this option.
-R, --root CHROOT_DIR
Apply changes in the CHROOT_DIR directory and use the
configuration files from the CHROOT_DIR directory.
-t, --time DAYS
Display faillog records more recent than DAYS.
-u, --user LOGIN|RANGE
Display faillog record or maintains failure counters and
limits (if used with -l, -m or -r options) only for the
specified user(s).
The users can be specified by a login name, a numerical user
ID, or a RANGE of users. This RANGE of users can be specified
with a min and max values (UID_MIN-UID_MAX), a max value
(-UID_MAX), or a min value (UID_MIN-).
When none of the -l, -m, or -r options are used, faillog displays
the faillog record of the specified user(s).
