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faillog - Unix, Linux Command
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NAME
faillog - display faillog records or set login failure limits
SYNOPSIS
Tag | Description |
faillog [options]
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DESCRIPTION
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.
OPTIONS
The options which apply to the
faillog
command are:
Tag | Description |
-a, --all
| |
Display faillog records for all users.
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-h, --help
| |
Display help message and exit.
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-l, --lock-time SEC
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Lock account to
SEC
seconds after failed login.
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-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.
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-r, --reset
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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 this option.
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-t, --time DAYS
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Display faillog records more recent than
DAYS. The
-t
flag overrides the use of
-u.
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-u, --user LOGIN
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Display faillog record or maintains failure counters and limits (if used with
-l,
-m
or
-r
options) only for user with
LOGIN.
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CAVEATS
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.
FILES
Tag | Description |
/var/log/faillog
| |
Failure logging file.
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SEE ALSO
login(1),
faillog(5).
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