nanog mailing list archives
Re: public open resolver list?
From: Hugo Salgado <hsalgado () nic cl>
Date: Mon, 1 Feb 2021 16:04:57 -0300
On 10:49 01/02, Randy Bush wrote:
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
I don't know of an exhaustive list, but a while ago I collected these: cloudflare 1.1.1.1 1.0.0.1 2606:4700:4700::1111 2606:4700:4700::1001 comodo: 8.26.56.26 8.20.247.20 dyn: 216.146.35.35 216.146.36.36 google: 8.8.8.8 8.8.4.4 2001:4860:4860::8888 2001:4860:4860::8844 level3: 4.2.2.2 4.2.2.1 norton: 199.85.126.10 199.85.127.10 opendns: 208.67.222.222 208.67.220.220 quad9: 9.9.9.9 149.112.112.112 2620:fe::fe 2620:fe::9 ultradns: 156.154.71.1 156.154.70.1 Hugo
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Current thread:
- public open resolver list? Randy Bush (Feb 01)
- Re: public open resolver list? Nick Hilliard (Feb 01)
- RE: public open resolver list? Spencer Coplin (Feb 01)
- Re: public open resolver list? Randy Bush (Feb 01)
- Re: public open resolver list? Hugo Salgado (Feb 01)
- Re: public open resolver list? Chris Boyd (Feb 01)
- RE: public open resolver list? Kevin McCormick (Feb 01)
- Re: public open resolver list? Bill Woodcock (Feb 01)
- Re: public open resolver list? Mel Beckman (Feb 01)
- Re: public open resolver list? Christopher Morrow (Feb 01)
- Re: public open resolver list? Michel 'ic' Luczak (Feb 02)
- Re: public open resolver list? niels=nanog (Feb 02)
- Re: public open resolver list? Nick Hilliard (Feb 01)
- Re: public open resolver list? Jay R. Ashworth (Feb 20)
- Re: public open resolver list? Chris Boyd (Feb 01)