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.
If you use BIND 9.7 or 9.8, you can use nsdiff as an alternative to the DNSSEC inline-signing
feature which appeared in BIND 9.9. The server updates the DNSSEC records dynamically, but you can continue to manage the unsigned static zone file as before and use `nsdiff | nsupdate`
to push changes to the server.
There are other situations where you have a zone which is partly dynamic and partly static, for example, a reverse DNS zone mostly updated by a DHCP server, which also has a few static entries. You can use nsdiff to update the static part of the zone.
To run nsdiff you need perl-5.10 or newer, and BIND version 9.7 or newer, specifically the dig, named-compilezone, and nsupdate utilities.
- Documentation
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The nsdiff homepage is http://dotat.at/prog/nsdiff/
Read the nsdiff manual: http://dotat.at/prog/nsdiff/nsdiff.html
- Code
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Download the bare perl source: http://dotat.at/prog/nsdiff/nsdiff
Download the full source archives:
- Source repositories
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You can clone or browse the repository from:
Please send bug reports or patches to me at <[email protected]>.
You may do anything with nsdiff. It has no warranty. http://creativecommons.org/publicdomain/zero/1.0/