This is a little old, but it has promise. I am going to re write it a bit and test this coming week.
https://git.qrz.is/clemens/nsd-dyndns Thanks, Steven ------- Original Message ------- On Sunday, March 13th, 2022 at 15:03, Havard Eidnes <[email protected]> wrote: > > What is typically used to auto discover Hostnames with Unbound > > > and NSD? I have an Unbound server pointing to an NSD server for > > > > local domain Authoritative queries. Which works brilliantly. > > > > What method, tool, etc is used to autodiscover hostnames so > > > > don't need to manually add them to NSD? > > Your question comes pretty close to asking "how can I use the DNS > > without doing DNS". > > That said, there are probably two main avenues you could follow > > to get closer to what I think you are asking for. I should > > probably also mention that I do not have own practical experience > > with either of them: > > 1) Use dynamic DNS updates. Probably requies quite a bit of setup, > > e.g. you need a publishing DNS server which is configured to > > authorize DDNS updates, and possibly some configuration on your > > DHCP server or participating hosts. I think configured correctly, > > hosts can be allowed to register their own preferred hostname, > > either directly or the DHCP server does it on their behalf on > > address assignment. I have not looked into whether NSD supports > > DDNS, but from what I saw of it before, "maybe not". I know that > > BIND does, though. > > 2) Use MDNS, which is "multicast DNS", and which I think doesn't use > > the hierarchical delegation model of the global DNS, but uses at > > least parts of the DNS protocol to allow for hosts on a LAN to chat > > multicast DNS to each other and have the ability to respond when > > their own preferred hostname is looked up by another host. You may > > have to tweak /etc/nsswitch.conf or corresponding to enable this > > protocol, and may also need to run mdnsd (or whatever corresponds > > to that). The MDNS protocol has its origin with Apple, but is also > > defined in RFCs on the standards track. See > > http://www.multicastdns.org/ for more information. > > Good luck, > > - Håvard
