kzonesign – DNSSEC signing utility


kzonesign [options] -c conf_file 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).


-c, --config conf_file

Knot DNS configuration file (same as for knotd).

-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).