kzonesign – DNSSEC signing utility


kzonesign [config_option config_argument] [options] zone_name


This utility reads the zone's zone file, signs the zone according to given configuration, and writes the signed zone file back. An alternative mode is DNSSEC validation of the given zone. The signing or validation can run in parallel if enabled in the configuration (see policy.signing-threads and zone.adjust-threads).

Config options

-c, --config file
Use a textual configuration file (default is @config_dir@/knot.conf).
-C, --confdb directory
Use a binary configuration database directory (default is @storage_dir@/confdb). The default configuration database, if exists, has a preference to the default configuration file.


-o, --outdir dir_name
Write the output zone file to the specified directory instead of the configured one.
-r, --rollover
Allow key roll-overs and NSEC3 re-salt. In order to finish possible KSK submission, set the KSK's active timestamp to now (+0) using keymgr.
-v, --verify
Instead of (re-)signing the zone, just verify that the zone is correctly signed.
-t, --time timestamp
Sign/verify the zone (and roll the keys if necessary) as if it was at the time specified by timestamp.
-h, --help
Print the program help.
-V, --version
Print the program version.


A name of the zone to be signed.

Exit values

Exit status of 0 means successful operation. Any other exit status indicates an error.

See Also

knot.conf(5), keymgr(8).