nsd-checkzone man page
nsd-checkzone — NSD zone file syntax checker.
nsd-checkzone [-h] zonename zonefile
nsd-checkzone reads a DNS zone file and checks it for errors. It prints errors to stderr. On failure it exits with nonzero exit status.
This is used to check files before feeding them to the nsd(8) daemon.
Print usage help information and exit.
The name of the zone to check, eg. "example.com".
The file to read, eg. "zones/example.com.zone.signed".
NSD was written by NLnet Labs and RIPE NCC joint team. Please see CREDITS file in the distribution for further details.