How to get a free .arpa domain

Many people, including myself, tend to look at .arpa and think "oh yes, thats PTR queries" but forget the DNS doesn't have a global rule that ONLY the PTR query can be sent to the domain.

It's just a domain. You can put anything into your zone. A, AAAA, PTR, TXT, you can even put HESIOD records if you want to party like its Kerberos nineteen ninety IV.

That would be my assumption, although I wouldn't bet on it being as stable as a traditional domain registration

If you don't use it at all, they do take the prefixes away. I lost a prefix when I did a house move and a server move and took a couple years to get around to setting up the tunnel... They didn't undelegate the DNS until I poked them to either please let me have the prefix back or fix DNS.

I have native ipv6 at home and on my hosting, so that's nice. Unfortunately the he.net tunnels are used for a lot of abuse now and you treated like a bot if you use them to go to popular websites. :(

whoops good catch, I had thought it was a synonym for the record ttl's expiring

I'll go fix it now

There's certainly a process that is between form being submitted and all 5 of ns[1-5].he.net returning the new data. From experience with other DNS changes at he.net, successful response is returned over HTTP before the changes are visible via the name servers.

I don't see what's wrong with calling that process propagating a change. And since it's propagating the change to become available in DNS, propagating DNS fits. :P

That process doesn't really involve any caching resolvers between you and the authoritative, but since you had to wait for the changes to propagate to the authoritative servers and you're just doing more waiting until the caching resolvers re-query, I understand why people include waiting for caching revolvers when they say DNS propagation.

Anyway, I'm open to a good definition of "propagate" that specifically requires push or an active process rather than pull/polling; I don't really see a basis for that looking at merriam-webster[1]:

> 3a: to cause to spread out and affect a greater number or greater area : extend

> b : to foster growing knowledge of, familiarity with, or acceptance of (something, such as an idea or belief)

By changing the results on the authoritative and as caching recursive resolvers requery, the new results spread out and affect a greater number. By answering queries with the new data, as caching recursives requery, the servers foster growing knowledge of the new results. And certainly those definitions fit toward updating the authoritative servers.

[1] https://www.merriam-webster.com/dictionary/propagate