Converts passive DNS data from NMSG format to MTBL format. The input NMSG data in NMSG-FILE must be encoded using the SIE/dnsdedupe message schema, and the output data will be written to two separate MTBL files: the DB-FILE containing "plain" DNS records, and the DB-DNSSEC-FILE, containing DNSSEC-related records. (Specifically, all resource records of type DS, RRSIG, NSEC, DNSKEY, NSEC3, NSEC3PARAM, and DLV are stored in the DB-DNSSEC-FILE, and resource records of all other types are stored in the DB-FILE.)
The output files produced by dnstable_convert are suitable for use with other dnstable tools like dnstable_dump(1) and dnstable_merge(1), or with the dnstable_reader(3) API. Since they are in MTBL format, they can also be read with the mtbl_reader(3) API.