dtconfchk man page

dtconfchk — Check a DNSSEC-Tools configuration file for sanity

Synopsis

dtconfchk [options] [config_file]

Description

dtconfchk checks a DNSSEC-Tools configuration file to determine if the entries are valid. If a configuration file isn't specified, the system configuration file will be verified.

Without any display options, dtconfchk displays error messages for problems found, followed by a summary line. Display options will increase or decrease the amount of detail about the configuration file's sanity. In all cases, the exit code is the count of errors found in the file.

The tests are divided into five groups: key-related checks, zone-related checks, path checks, rollover checks, and miscellaneous checks. The checks in each of these self-explanatory groups are described below.

The default_keyrec configuration entry is not checked. This entry specifies the default keyrec file name and isn't necessarily expected to exist in any particular place.

Boolean Values

The DNSSEC-Tools configuration file has a number of fields that are expected to hold boolean values. The recognized values for booleans are as follows:

true values  - 1, true,  t, yes, y
false values - 0, false, f, no,  n

Positive values greater than 1 are recognized as true values, but it probably would be best to use 1.

Text values that aren't in the set above are not valid and will translate to false values.

Path Checks

Path checks are performed for several DNSSEC-Tools commands, several BIND commands, and a few miscellaneous files.

The following path checks are performed for DNSSEC-Tools commands:

genkrf
Ensure the genkrf field is valid. If the filename starts with a '/', the file must be a regular executable file.
keyarch
Ensure the keyarch field is valid. If the filename starts with a '/', the file must be a regular executable file.
rollchk
Ensure the rollchk field is valid. If the filename starts with a '/', the file must be a regular executable file.
rollctl
Ensure the rollctl field is valid. If the filename starts with a '/', the file must be a regular executable file.
zonesigner
Ensure the zonesigner field is valid. If the filename starts with a '/', the file must be a regular executable file.

The following path checks are performed for BIND tools:

keygen
Ensure the keygen field is valid. If the filename starts with a '/', the file must be a regular executable file.
rndc
Ensure the rndc field is valid. If the filename starts with a '/', the file must be a regular executable file.
zonecheck
Ensure the zonecheck field is valid. If the filename starts with a '/', the file must be a regular executable file.
zonesign
Ensure the zonesign field is valid. If the filename starts with a '/', the file must be a regular executable file.

The following path checks are performed for miscellaneous files and directories:

random
Ensure the random field is valid. The file must be a character device file.
roll_logfile
Ensure the roll_logfile field is a regular file.
taresolvconf
Ensure the taresolvconf field is a regular file.
tatmpdir
Ensure the tatmpdir field is a directory.

Rollover Daemon Checks

The following checks are performed for rollerd values:

autosign
Ensure that the autosign flag is a valid boolean.
log_tz
Ensure the log_tz field is either 'gmt' or 'local'.
prog_normal
prog_ksk1 ... prog_ksk7
prog_zsk1 ... prog_zsk4
Ensure that the rollover phase commands are valid paths. Each of these fields is a semicolon-separated command list. The file checks are run on the commands to ensure the commands exist and are executable. Options and arguments to the commands are ignored, as is the default keyword.
roll_loadzone
Ensure that the roll_loadzone flag is a valid boolean.
roll_logfile
Ensure that the log file for the rollerd is valid. If the file exists, it must be a regular file.
roll_loglevel

Ensure that the logging level for the rollerd is reasonable. The log level must be one of the following text or numeric values:

tmi        1       Overly verbose informational messages.
expire     3       A verbose countdown of zone expiration is given.
info       4       Informational messages.
phase      6       Current state of zone.
err        8       Error messages.
fatal      9       Fatal errors.

Specifying a particular log level will causes messages of a higher numeric value to also be displayed.

roll_sleeptime
Ensure that the rollerd's sleep-time is reasonable. rollerd's sleep-time must be at least one minute.
roll_username
Ensure that the username for rollerd is valid. If it's a username, it must be translatable to a uid; if it's a uid, it must translate to a known username.
zone_errors
Ensure that the zone error count is numeric and 0 or greater.

NSEC3 Checks

The following checks are performed for NSEC3-related values:

nsec3iter
Ensure that the nsec3iter iteration count falls within the range used by dnssec-signzone. The current values are from 1 - 65535.
nsec3optout
Ensure that the nsec3optout flag is a valid boolean.
usensec3
Ensure that the usensec3 flag is a valid boolean.

Miscellaneous Checks

The following miscellaneous checks are performed:

admin-email
Ensure that the admin-email field is defined and has a value. dtconfchk does not try to validate the email address itself.
archivedir
Ensure that the archivedir directory is actually a directory. This check is only performed if the savekeys flag is set on.
entropy_msg
Ensure that the entropy_msg flag is a valid boolean.
savekeys
Ensure that the savekeys flag is a valid boolean. If this flag is set to 1, then the archivedir field will also be checked.
usegui
Ensure that the usegui flag is a valid boolean.
zonefile-parser
Ensure that the zonefile-parser flag is a valid Perl module. This is checked by using the Perl "require" facility to load the specified module.

Options

-expert

This option will bypass the following checks:

- KSK has a longer lifespan than the configuration
  file's default minimum lifespan
- KSK has a shorter lifespan than the configuration
  file's default maximum lifespan
- ZSKs have a longer lifespan than the configuration
  file's default minimum lifespan
- ZSKs have a shorter lifespan than the configuration
  file's default maximum lifespan
-quiet
No output will be given. The number of errors will be used as the exit code.
-summary
A final summary of success or failure will be printed. The number of errors will be used as the exit code.
-verbose
Success or failure status of each check will be given. A + or - prefix will be given for each valid and invalid entry. The number of errors will be used as the exit code.
-Version
Displays the version information for dtconfchk and the DNSSEC-Tools package.
-help
Display a usage message.

Author

Wayne Morrison, tewok@tislabs.com

See Also

dtdefs(8), dtinitconf(8), rollerd(8), zonesigner(8)

Net::DNS::SEC::Tools::conf.pm(3), Net::DNS::SEC::Tools::defaults.pm(3)

dnssec-tools.conf(5)

Info

2015-06-30 perl v5.24.0 User Contributed Perl Documentation