An open DNS recursive service for free security and high privacy

Habgdnv•35 minutes ago

Just a quick note for the unsuspecting: I run two local DNSes, one recursive and one forwarding. The forwarding one uses few services, like 1.1.1.1, 8.8.8.8, 9.9.9.9, etc. One day I noticed inconsistent responses and started investigating. Turns out that by default 9.9.9.9 have "protection" and for your safety will lie and return NXDOMAIN or something else, for some dangerous domains, taking into account their definition of "dangerous". I am not saying that this is bad, probably lots of non-HN people don't want to run their DNS or anything related and just want a tablet that works because they don't even have laptop. It just hit me hard because I did not expected filtering on these servers.

greyface-•about 2 hours ago

Sending every single query to a centralized third party is hard to square with "high privacy". I prefer to run my own local recursive resolver.

ebb_earl_co•about 1 hour ago

Please correct me if I am mistaken, but unless there’s a local resolver for every single one of your clients, aren’t the DNS requests sent in plaintext to the upstream of your local resolver?

That might not be an issue for your situation, but I recall the benefit of something like Quad9’s offering is the encryption between client and their endpoint(s), particularly for untrusted ISP or similar.

winstonwinston•31 minutes ago

> I prefer to run my own local recursive resolver.

Used to be fine. I stopped doing it when average TTL dropped to 300 seconds and it takes far too long for my local recursor to get the answer >100ms, when 3rd party resolver delivers in <10ms.

annoyingnoob•about 2 hours ago

I tried Quad9 at our business for a while, about a year. I ended up moving to something else due to latency. I'm not sure if it was a routing issue or what but there were a lot of timeouts and slow responses. I have not had these issues with other providers.

winstonwinston•41 minutes ago

When I run a mix of CF and Quad9 resolvers, Quad9 was consistently slower in response times when measured. But it didn’t make any perceivable difference in real usage.

jordand•about 1 hour ago

I'd used NextDNS for a while but the service kept degrading with more timeouts regardless if you were on free/paid. Haven't had any issues with Quad9

An open DNS recursive service for free security and high privacy

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