Paul Kosinski via bind-users <bind-users@lists.isc.org> wrote: > A couple of years ago, I tried using nsupdate to modify a dynamic (DHCP) > IP address for my very simple domain. It worked, except that it totally > messed up the organization of the zone file. Since the file only has 44 > active lines (which are organized logically), I maintain it by hand. > After nsupdate made the one line change, the zone file became > unmaintainable. > > Was this a bug in nsupdate, or does nobody try to understand their zone > files.
When you have a zone that accepts dynamic updates, then its zone file is owned by `named`, and `named` will rewrite the file to incorporate updates, which (as you saw) also strips out comments and canonicalized the formatting. This is often surprising and upsetting to people who are new to dynamic updates - you are not alone! Basically, if you are doing dynamic updates, then the source of truth for your zone needs to be somewhere else, not the zone file used by `named`. (For example, at my work our zones are stored in a database and edited with a web front end.) I have some scripts which allow you to maintain your zone file however you want, and push any differences into `named` using `nsupdate`, so you never need to touch the zone files that it owns. https://dotat.at/prog/nsdiff/ Tony. -- f.anthony.n.finch <d...@dotat.at> https://dotat.at/ Lyme Regis to Lands End including the Isles of Scilly: Easterly or northeasterly 5 to 7, occasionally 4 in east. Moderate or rough. Fair. Good. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
