Root-Hints

[p3rtinax]

Dear kapetan,
Is there any option to sends update to root-hints ?
https://www.iana.org/domains/root/servers

I'm wanna test it on public, but there is no root-hints option !

[SamuraiMuz]

Just wondering, if you have a testing domain for yourself, can you just set the TTL & Expire values to be very short so the root DNS get the updates frequently? I was thinking you could just point your name server records to testing one or even create DNS delegation to allow for testing.

[jasoncouture]

@kapetan I'm working on this, to allow querying root servers via a resolver that wraps UdpRequestResolver

Would you be OK with me adding a BIND parser that populates a masterfile? The official root server list is a file found here: https://www.internic.net/domain/named.root in BIND zone file format. I'd prefer this as the root server list can be embedded as a resource, and the file could be updated automagically somehow at a later point.

[jasoncouture]

If not, I can always hardcode the root server list, but it may require periodic updates.

[jasoncouture]

@kapetan @p3rtinax @SamuraiMuz
I have gotten the following working, however, I'd like to refine it some more. Would any of you like to provide feedback:
192.x.x.x are well known root servers, hard coded for testing
var resolver = new RecursiveRequestResolver(new ParallelRequestResolver( UdpRequestResolver.Create(IPAddress.Parse("192.33.4.12")), UdpRequestResolver.Create(IPAddress.Parse("192.41.162.30")))); DnsClient client = new DnsClient(resolver);
Commit implementing RecursiveRequestResolver:
jasoncouture@89f5846

My only current concern is creating excess garbage for the GC by creating and throwing away UdpRequestResolver/RecursiveRequestResolver with each recursion. But that may just be me micro-optimizing.