authck - Checks internal consistency of the authentication databases
/tcb/bin/authck [ options ]
NOTE: At least one of the -a, -p, -t, or -f flags is required.
-a Turns on the -p, -t, and -f flags collectively.
-f Examines the file control database for syntax and value specification
errors. Each entry is examined to verify that the syntax is correct and
that values such as user names, group names, modes, object types, and
other security attributes, depending on the system configuration, are
valid. Checks are also made to ensure that continuation lines are han-
dled properly in ASCII files and that each entry is terminated with the
chkent field. Errors detected in the file control database cannot be
corrected by authck since in most cases the command is unable to deter-
mine what the entry should contain. Instead, errors are detected and
correction of these errors is left to the system administrator.
-p Checks the protected password database (user profiles). The cross-
references between the protected password database and /etc/passwd are
checked to make sure that they are mutually consistent. Then fields in
the protected password database are checked for reasonable values. For
instance, all timestamps of past events are checked to make sure that
they have times less than the times returned by time().
-t Checks the fields in the terminal control database for reasonable
values. All timestamps of past events are checked to make sure they
have times less than those returned by time().
-v Provides running diagnostics as the program proceeds. It also produces
warnings on unusual conditions that may not cause program errors.
The authck program checks both the overall structure and internal field
consistency of all components of the authentication databases. It reports
all problems it finds. To invoke this program you must log in as root.
If authck did not detect any inconsistencies, it exits with a status of 0
(zero). If the user is not authorized, authck exits with a status of 1.
If the user specifies the wrong argument syntax, authck exits with a status
of 2. Otherwise, authck exits with status equal to the number of incon-
Specifies the command path.
System password file.
Protected password database.
File control database.
Terminal control database.
System defaults database.
Functions: getprdfent(3), getprpwent(3), getprtcent(3), getprfient(3)
Files: authcap(4), default(4), files(4), prpasswd(4), ttys(4)