FAILLOG(8) System Management Commands FAILLOG(8)
faillog - display faillog records or set login failure limits
faillog formats the contents of the failure log from /var/log/faillog
database. It also can be used for maintains failure counters and
limits. Run faillog without arguments display only list of user faillog
records who have ever had a login failure.
The options which apply to the faillog command are:
Display faillog records for all users.
Display help message and exit.
-l, --lock-time SEC
Lock account to SEC seconds after failed login.
-m, --maximum MAX
Set maximum number of login failures after the account is disabled
to MAX. Selecting 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.
Reset the counters of login failures or one record if used with the
-u LOGIN option. Write access to /var/log/faillog is required for
-t, --time DAYS
Display faillog records more recent than DAYS. The -t flag overrides
the use of -u.
-u, --user LOGIN
Display faillog record or maintains failure counters and limits (if
used with -l, -m or -r options) only for user with LOGIN.
faillog only prints out users with no successful login since the last
failure. To print out a user who has had a successful login since their
last failure, you must explicitly request the user with the -u flag, or
print out all users with the -a flag.
Failure logging file.
System Management Commands 02/25/2007 FAILLOG(8)