Package nsdiff

create an "nsupdate" script from DNS zone file differences

https://dotat.at/prog/nsdiff/

The nsdiff program examines the old and new versions of a DNS zone, and
outputs the differences as a script for use by BIND's nsupdate program.
It provides a bridge between static zone files and dynamic updates.

The nspatch script is a wrapper around `nsdiff | nsupdate` that checks
and reports errors in a manner suitable for running from cron.

The nsvi script makes it easy to edit a dynamic zone.

General Commands
Command Description
nsdiff create "nsupdate" script from DNS zone file differences
nspatch run `nsdiff | nsupdate` with error handling
nsvi transfer a zone, edit it, then upload the edits