nanog mailing list archives

Re: public open resolver list?


From: Randy Bush <randy () psg com>
Date: Mon, 01 Feb 2021 10:49:30 -0800

is there a list of public resolvers?  e.g. 1.1.1.1, 4.4.4.4, 8.8.8.8,
etc.?

https://public-dns.info/

interesting, but probably too broad.

but i suspect my question was too broad.

we have a measurement set which contains resolvers, some of which we
suspect are intentionally open, some unintentionally open, and some
not open.  we are trying to filter that first set, the intentionally
open.

i suspect it hinges on what one thinks of as 'public'.  i.e. dtag's
servers for its customers is not what i think of as public.  maybe
i mean globally public or something.

randy, who clearly needs to think a bit more


Current thread: