Privacy

31954 readers

454 users here now

A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

In this community everyone is welcome to post links and discuss topics related to privacy.

Some Rules

Posting a link to a website containing tracking isn't great, if contents of the website are behind a paywall maybe copy them into the post
Don't promote proprietary software
Try to keep things on topic
If you have a question, please try searching for previous discussions, maybe it has already been answered
Reposts are fine, but should have at least a couple of weeks in between so that the post can reach a new audience
Be nice :)

Related communities

Chat rooms

[Matrix/Element]Dead
Discord

much thanks to @gary_host_laptop for the logo design :)

founded 5 years ago

MODERATORS

Quad9 censoring DNS requests? (lemmy.world)

submitted 6 months ago by mypasswordis1234@lemmy.world to c/privacy@lemmy.ml

39 comments fedilink hide all child comments

I noticed that Quad 9 is not able to respond to the spy.pet query:

$ dig spy.pet @9.9.9.9 +short
;; communications error to 9.9.9.9#53: timed out

But Cloudflare DNS is able to do it:

$ dig spy.pet @1.1.1.1 +short
104.26.0.165
104.26.1.165
172.67.74.73

And to be sure, I checked another domain with the same TLD to rule out the option that Quad9 is unable to handle the .pet TLD, but I received a correct answer...

$ dig hello.pet @9.9.9.9 +short
3.64.163.50

Does Quad9 censor DNS queries?

you are viewing a single comment's thread
view the rest of the comments

[–] AmbiguousProps@lemmy.today 5 points 6 months ago* (last edited 6 months ago)

but then once you’ve thousands of servers running the same piece of software across the globe deploying updates and features becomes way slower and way harder. You’ve to consider tests, regressions, a way to properly store and sincronize the blocklists across nodes etc…

This is what we're trying to explain to you, this is how DNS works. Those thousands of servers? Recusrive DNS resolvers, ran by Cloudflare. All watching and caching the records from Cloudflare's authoritative nameservers in near real time, because that's how it was designed. You don't need to test for regressions, figure out how to properly store and synchronize the "blocklist" (it's not a blocklist, it's changing a domain record or simply using a CNAME to point to the registrar) or whatever else, because DNS is continuous, and it was designed to do what you're describing, in the 90's.

Yes, if you're updating your infrastructure, you'd want to test. But this isn't that.

Ever ran into an expired domain and thought about how the registrar can just park an expired domain and make it an ad for themselves? That's just them adding a CNAME in their authoritative nameservers, which gets distributed globally. The prior delinquent owner can still be hosting, but because they don't have the authoritative nameserver they can't use the domain anymore.