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We don’t block archive.is or any other domain via 1.1.1.1. Doing so, we believe, would violate the integrity of DNS and the privacy and security promises we mad
by eastdakota 7y ago
We don’t block archive.is or any other domain via 1.1.1.1. Doing so, we believe, would violate the integrity of DNS and the privacy and security promises we made to our users when we launched the service.
Archive.is’s authoritative DNS servers return bad results to 1.1.1.1 when we query them. I’ve proposed we just fix it on our end but our team, quite rightly, said that too would violate the integrity of DNS and the privacy and security promises we made to our users when we launched the service.
The archive.is owner has explained that he returns bad results to us because we don’t pass along the EDNS subnet information. This information leaks information about a requester’s IP and, in turn, sacrifices the privacy of users. This is especially problematic as we work to encrypt more DNS traffic since the request from Resolver to Authoritative DNS is typically unencrypted. We’re aware of real world examples where nationstate actors have monitored EDNS subnet information to track individuals, which was part of the motivation for the privacy and security policies of 1.1.1.1.
EDNS IP subsets can be used to better geolocate responses for services that use DNS-based load balancing. However, 1.1.1.1 is delivered across Cloudflare’s entire network that today spans 180 cities. We publish the geolocation information of the IPs that we query from. That allows any network with less density than we have to properly return DNS-targeted results. For a relatively small operator like archive.is, there would be no loss in geo load balancing fidelity relying on the location of the Cloudflare PoP in lieu of EDNS IP subnets.
We are working with the small number of networks with a higher network/ISP density than Cloudflare (e.g., Netflix, Facebook, Google/YouTube) to come up with an EDNS IP Subnet alternative that gets them the information they need for geolocation targeting without risking user privacy and security. Those conversations have been productive and are ongoing. If archive.is has suggestions along these lines, we’d be happy to consider them.
- givinguflac 7y agoThanks for the detailed response! I think your team is handling this the right way.
- DanielDent 7y agoAn example of something that Cloudflare's approach provides some protection from: http://dnscookie.com/ http://dnscookie.com/
- ikeboy 7y agoAre there any other known sites that don't work with 1.1.1.1 but work fine on other resolvers?
- eastdakota 7y agoTypically, if you experience that, it’s because DNSSEC fails. 1.1.1.1 enforces DNSSEC. As does 8.8.8.8 in most, but not all, cases. Many other DNS resolvers do not enforce DNSSEC. Archive.is (and its directly affiliated sites) are the only exception like this I am aware of. And, to be clear, as a policy the 1.1.1.1 DNS does not block any sites from resolution.
- wolfgang42 7y agoI (random HN user) happen to know of lancaster.ac.uk (there was a comment thread a while back where this was mentioned).
- judge2020 7y agoThis is a problem of the 1^4 resolver not implementing DNAME support (either not a priority, or just in the backlog): https://community.cloudflare.com/t/www-lancaster-ac-uk-not-resolving-servfail/32211/3?u=judge https://community.cloudflare.com/t/www-lancaster-ac-uk-not-r...
- Smylers 7y agoIn what way doesn't it work? This is with my ISP's DNS (using which I can visit https://www.lancaster.ac.uk/ https://www.lancaster.ac.uk/ in a browser): $ host -t a lancaster.ac.uk lancaster.ac.uk has address 148.88.65.80 and this is with Cloudflare's: $ host -t a lancaster.ac.uk 1.1.1.1 Using domain server: Name: 1.1.1.1 Address: 1.1.1.1#53 Aliases: lancaster.ac.uk has address 148.88.65.80 Looks the same to me.
- kitchenkarma 7y agoCould you use your own subnet in the EDNS that matches client's country or could you let user configure what data would be shared?
- jlg23 7y agoOngoing work with big companies to replace existing technologies don't convince me. Though, neither does whining when the authoritative nameserver itself is returning bogus responses.
- codexon 7y agoWhy not just send the subnet of the machine at cloudflare doing the querying?
- akerl_ 7y agoThe full IP of the Cloudflare resolver doing the recursive resolution is already provided to the authoritative server, as the source IP for the DNS query traffic.
- shawnz 7y agoI think the parent is saying, why not spoof the EDNS client subnet information?
- deleted 7y ago[deleted]
- akerl_ 7y agoTrue. Copying the information would be possible, but given they’re working on other efforts to replace the functionality of EDNS ECS in a standard way, it seems like a hacky bandaid.
- manigandham 7y agoEDNS is a working system today, doesn't seem that hacky to use it until a new system is actually ready (which doesn't seem to be anytime soon anyway).
- slenk 7y agoIt works if you don't care about privacy
- manigandham 7y agoThe suggestion was to use the EDNS of the datacenter server, how does that ruin privacy?
- jakejarvis 7y agoHonestly, Cloudflare choosing not to hastily slap a band-aid on a problem like this just makes me feel more compelled to continue using 1.1.1.1. I hesitate to compare this to Apple calling themselves “courageous” when removing the headphone jack, but in this case, I think the word is appropriate. I’ll happily stand behind you guys if you take some PR hits while forcing the rest of the industry to make DNS safer – since it is understandable, admittedly, for users to conclude that “Cloudflare is blocking websites, sound the alarms!” at first glance.
- mrtweetyhack 7y agoApple's move is solely based on greed. Sell people a product they eill easily lose as well as having a limited lifetime. Easy money.
- fapjacks 7y agoFor the moment, I also do trust CloudFlare's intentions, but it's wrong to classify this as some kind of stoic resolve in not "slapping a band-aid on a problem" since that's exactly what they did after their business decision about not responding to "any" queries.
- lmb 7y agoWhat do you mean with this? Refuse ANY is now a proposed RFC https://datatracker.ietf.org/doc/rfc8482/ https://datatracker.ietf.org/doc/rfc8482/ How is that a band aid?
- ff317 7y agoJust for another voice in this sub-discussion: I'm an authdns software implementer ( https://github.com/gdnsd/gdnsd https://github.com/gdnsd/gdnsd ) with no connection to Cloudflare, and I like Refuse ANY. It's maybe hard to see all the issues with traditional ANY clearly unless you're implementing this stuff, but IMHO RFC 8482 is a really good path forward that I'm supportive of and have also implemented.
- fapjacks 7y ago
- CodeWriter23 7y ago@eastdakota what about just failing without response on archive.is calls so the second resolver address configured in the client will be used? I understand this is also a DNS integrity violation, however the result for the end user would be either the same if they don’t have a second resolver configured or enhanced if they do. The current effect is I stop using 1.1.1.1 when I need archive.is (often) and set it back the next time I’m messing with my network settings.
- eastdakota 7y agoDNS either has integrity or it doesn’t. We get a response from an Authoritative server and, as a Resolver, we believe our responsibility is to return it. If we start making exceptions because of bad PR, how can you trust us to do the right thing when the stakes are even higher (e.g., nationstate pressure)? As an aside, I used to think that when Emerson said that “a foolish consistency is the hobgoblin of little minds” he meant that we were foolish to try and be consistent. Increasingly I wonder if instead he meant that when you’re trying to reason with people who may not have the same detailed knowledge of a problem as you, there’s an enhanced importance to being consistent. Unfortunately, most policy makers globally don’t have a detailed understanding of how technical systems like DNS work, so we think it’s especially important we be consistent.
- deleted 7y ago[deleted]
- CodeWriter23 7y agoMy take on the Emerson quote you mention is to be mindful instead of mindless when it comes to consistency. I respect the commitment to consistency you convey (and I do think it is mindful).
- dogecoinbase 7y agoI would recommend you leave exegesis of Emerson to the experts. What he meant is much closer to "pave the cowpaths" than "break things that currently work by enforcing arbitrary standards".
- 7y ago
- twhb 7y agoThank you for your comment. Since HTTPS traffic already reveals communicating IPs to nation-state actors, could you clarify what attack vector removing user IP info from authoritative DNS queries protects against? In what way does Cloudflare publish its PoP geolocation? Is it a Cloudflare-specific API? Why not fake EDNS subnet info by providing the PoP’s? I notice of course that Google, Facebook, and Netflix still work on 1.1.1.1. Does this mean they’re currently using Cloudflare PoP geolocation in lieu of EDNS subnet information?
- sintaxi 7y agoIts preventing the DNS authority to know the IP of who is making the request. CloudFlare decided its DNS should be the authority to the end user and Archive.is's DNS should be the authority only to CloudFlare. CloudFlare is breaking the bond between the end user and the Service provider. What CloudFlare is doing is centralizing authority to itself rather allowing authority to be distributed to all owners of the domains as intended. An argument can be made that by using 1.1.1.1 you are granting CF permission to act in this role - some users may even prefer it.
- slenk 7y agoThis is no different than any 3rd party DNS service. If the resolving DNS server you hit doesn't have a cached response, it reaches out to the upstream resolver. It doesn't pass your IP along to the upstream resolver
- deathanatos 7y agoSay you remove/don't proxy the ECS information, and I get some generic, non-geo-location aware response back. In the majority of cases, wouldn't my next step be to open a TCP connection to the IP in the response, and immediately leak my full IP address to the other end? While I get (and appreciate!) the concern for the user's privacy, I'm having a hard time seeing what practical effect not proxying the subnet the user is on has? (This is not meant to suggest that archive.is's DNS response is appropriate, or that CF's setup is inappropriate.) (Just to check my understanding of ECS: it's an extension to DNS that sends the user's subnet in the request, and gets relayed with the request, s.t. an authoritative server can respond with a geo-location appropriate response/IP.)
- Xylakant 7y ago> Say you remove/don't proxy the ECS information, and I get some generic, non-geo-location aware response back. In the majority of cases, wouldn't my next step be to open a TCP connection to the IP in the response, and immediately leak my full IP address to the other end? That assumes that the nameserver and the actual server are run by the same party which quite often is not the case.
- altfredd 7y ago> That assumes that the nameserver and the actual server are run by the same party which quite often is not the case. Cloudflare can check if nameserver and the actual server are run by different parties, and if so omit subnet information from EDNS response. It is not hard to implement — Google and OpenDNS used to require manual whitelisting to receive EDNS subnet responses (not sure if they still do). Cloudflare's CDN leaks user's full online identity to Google via reCaptcha, especially when you use Tor. Maybe they should ask Google to be satisfied with client's subnet too?
- devereaux 7y ago> Cloudflare's CDN leaks user's full online identity to Google via reCaptcha, especially when you use Tor. How?
- voldacar 7y agoIf the govt of your jurisdiction (American I assume?) commanded you to censor a certain domain or block of IPs with a court order, what exactly happens? I'm not sure if this has been done on the DNS level before but do you guys have a plan in case it ever does happen?
- incompatible 7y agoJurisdiction would include every place where they have a business presence. Their page https://www.cloudflare.com/en-au/about-overview/ https://www.cloudflare.com/en-au/about-overview/ lists quite a few international phone numbers, which may or may not correspond with offices and subsidiary companies in those locations. I assume they'd just have to go along with such legal demands, or withdraw from the relevant country, unless the penalty for not complying was very small. It will probably become an issue some day. In Australia, for example, courts can issue DNS bans of particular sites to individual ISPs. You can avoid these bans entirely by using a service like Cloudfare DNS.
- syshum 7y agoOr you know you Piss off CloudFare CEO and he directs them to censor a site... Which has happened in the past
- fapjacks 7y agoExactly. If it's not "the right kind" of content behind a domain, it doesn't even take a court order for CloudFlare to censor it.
- DaniloDias 7y agoEncrypting dns is bad for end users. Please cut this shit out. You are acting like you are defending against the NSA, but in reality we will have a bunch of shitty IoT phoning data to indecipherable IP addresses without any meaningful defense of consumer privacy. It is hostile to customers who want to troubleshoot wtf apps are doing.
- celsoazevedo 7y agoNormal DNS queries aren't encrypted. It's normal queries on port 53. Users/programs/IoT can choose to use DNS-over-TLS or DNS-over-HTTPS, but that's not Cloudflare's fault.
- dagenix 7y agoNothing in his response is about encrypting DNS. Go grind your axe elsewhere.
- sercand 7y agoIn my country, government/ISP blocks websites and changes the DNS results of 8.8.8.8 since it is not encrypted. If ISP can create a valid certificate, that browsers trust [1], they may be able to access my Gmail or Github account. [1] https://www.zdnet.com/article/mozilla-to-chinas-wosign-well-kill-firefox-trust-in-you-after-mis-issued-github-certs/ https://www.zdnet.com/article/mozilla-to-chinas-wosign-well-...
- OJFord 7y agoAwesome response! Is there already a blog post on this? Such a post might A) get better SEO than an HN thread for 'cannot access archive.is [or ...]' and B) help change its behaviour.
- SimeVidas 7y agoThe experience for the user is that the page just keeps loading indefinitely, while showing a blank page. Is there nothing Cloudflare could do to inform the browser about the situation, so that the browser can show some kind of a message to the user? As it stands, to the user it just looks like their connection died.
- deleted 7y ago[deleted]
- icebraining 7y agoI don't see what they can do, short of sending fake DNS replies with their own webserver IPs, which is worse for the integrity of DNS.
- SimeVidas 7y agoShouldn’t there be some kind of standard DNS response for this? There are dozens of different HTTP status codes for all kinds of scenarios. Doesn’t DNS have something like that? I know almost nothing about DNS, I’m just curious.
- icebraining 7y agoThe thing is, the server sends a real response, it's just not the same response as it sends to other recursive resolvers. Imagine it's HTTP, and the site sent a 404 to your proxy, but you knew it generally sent a 200 to other proxies, what should you do? Send the 404, or override it with your own status code? Cloudflare is saying they are not OK with overriding codes.
- anbop 7y agoHuh, don’t see many CEOs writing and talking like this. And I don’t think a flunky wrote this.
- HNthrow22 7y agoarchive.is is a very important tool in online extremism research and you've taken money from far-right extremists, your explanation for why it's inaccessible seems incomplete. This is probably where I get banned from Hn but it has to be said - to posture as if you care about end users while in the same breath taking money from extremists and turning over personal identifiable information to far-right outlets like DailyStormer, is disingenuous at best and I can think of other ways to describe it which are less charitable. You also host and protect 8chan. https://twitter.com/ncweaver/status/1124091916520497153 https://twitter.com/ncweaver/status/1124091916520497153 https://twitter.com/klarajk/status/1122625367490146304 https://twitter.com/klarajk/status/1122625367490146304 https://twitter.com/Riverseeker/status/1122612031234945024 https://twitter.com/Riverseeker/status/1122612031234945024 https://twitter.com/slpng_giants/status/1123592717341200384 https://twitter.com/slpng_giants/status/1123592717341200384 https://twitter.com/NathanBLawrence/status/1056286809741819905 https://twitter.com/NathanBLawrence/status/10562868097418199... https://twitter.com/NJDemocrat/status/897147112273608705 https://twitter.com/NJDemocrat/status/897147112273608705 https://twitter.com/InvestMib/status/1123308004873515015 https://twitter.com/InvestMib/status/1123308004873515015 https://twitter.com/jwz/status/1124415034610860033 https://twitter.com/jwz/status/1124415034610860033
- tdhoot 7y agoI think the tone of this comment as "courageous" is especially humorous coming from a throwaway account.
- HNthrow22 7y agoI'm far from courageous, in fact I'm scared because these groups regularly DoX those who draw attention to this pressing issue: https://thenextweb.com/opinion/2018/07/17/the-daily-callers-doxxing-of-sleeping-giants-was-a-dick-move/ https://thenextweb.com/opinion/2018/07/17/the-daily-callers-... http://www.sfweekly.com/news/daily-caller-doxxes-the-s-f-guy-who-led-the-anti-breitbart-campaign/ http://www.sfweekly.com/news/daily-caller-doxxes-the-s-f-guy... Journalist like Robert Evans are courageous: https://www.bellingcat.com/news/americas/2019/04/28/ignore-the-poway-synagogue-shooters-manifesto-pay-attention-to-8chans-pol-board/ https://www.bellingcat.com/news/americas/2019/04/28/ignore-t... Researchers like Whitney Phillips are courageous https://www.wired.com/story/existential-crisis-plaguing-online-extremism-researchers/ https://www.wired.com/story/existential-crisis-plaguing-onli... I'm just disgusted.
- fapjacks 7y agoWell no, CloudFlare doesn't get to talk about not "violating the integrity of DNS" after you stopped responding to "any" queries in violation of the standard. You started by doing your own thing and then proposed a change to the standard to fit your business decision. [0] [0] https://www.rfc-editor.org/info/rfc8482 https://www.rfc-editor.org/info/rfc8482
- dcbadacd 7y agoThere's a difference between changing results (or adding) and not supporting a feature that is dangerous and rarely used. Kind-of like banning handguns vs. providing unknownly modified guns.
- wellyeah 7y agoWait, but both of these are horrible ideas. Horrible analogy; theres no need to bring politics into this.
- Vinnl 7y agoIt's a fine analogy: the former is something some people think is a good idea, and others think isn't, whereas about the latter most people agree it should not be done. Which is what OP wanted to express.
- gsich 7y agoThey could have allowed "any" only via TCP. Instead Cloudflare told everyone "our software can't handle any, so yours shouldn't either".
- ilikenwf 7y agoThey also stopped responding to all DNS queries for some neonazi asshats because of public pressure and politics. They're definitely jerks but they still should be treated like any other customer unless they're actively breaking the law.
- fxfan 7y agoWow, I'm totallly not on the x company awesome today- x company terrible tomorrow with x = cloudflare but I'm impressed that you guys are doing due diligence!
- notyourday 7y agoAlternatively: Cloudflare simply is making a subversive play against their competitor CDNs. Client subnet of a DNS request is used for initial rough mapping by Cloudflare competitors such as Akamai (definitely) and I believe Fastly ( and probably others) . Stripping it easily adds at least a few milliseconds to the time to first byte and most likely results a request re-routing on the second or third request. After all, no other CDN is operating a well used public resolver.
- TheGoddessInari 7y agoGoogle has its own public DNS and CDN, I'm pretty sure that counts.
- notyourday 7y agoIsn't Google CDN a public beta or did it just exit a public beta into a GA? If so, it is a non-entity for at least a year long contracts that the other CDNs have with its customers. Probably a non-entity for years to come.
- tecleandor 7y agoGoogle Cloud CDN has been GA since 3 years ago: https://cloud.google.com/cdn/docs/release-notes#june_27_2016 https://cloud.google.com/cdn/docs/release-notes#june_27_2016
- miyuru 7y agoAs this is related to CDN, I am gonna leave it here. The irony is one.one.one.one is marketed as getaway to faster internet, while making CDNs that use GeoDNS slower. All it takes is a bad route to a far away cloudflare POP to make your internet really slower. Case in point. [1] I really don't find why no EDNS is considered private, as it only sends the IP subnet.[2] And on IPv6 the IP is far more protected. If you care that much about privacy, you should be using a VPN. [1] https://pastebin.com/raw/QnbWXU1a https://pastebin.com/raw/QnbWXU1a [2] https://tools.ietf.org/html/rfc7871#section-11.1 https://tools.ietf.org/html/rfc7871#section-11.1
- deleted 7y ago[deleted]
- StreamBright 7y agoThanks for the explanation. One more reason to keep using you instead of anything else.
- Dylan16807 7y ago> We publish the geolocation information of the IPs that we query from. That allows any network with less density than we have to properly return DNS-targeted results. The operator of archive.is claims that they suffer from a "massive mismatch" between those query IPs and actual traffic. Any idea why? [Is that claim wrong? Is archive.is to blame? Is cloudflare to blame? Are ISPs badly routing the DNS queries?] Do you have stats on how well the geolocation works in practice?
- ilikenwf 7y agoIf you're for integrity of DNS, why did you suspend the free speech of the admittedly bigoted, hateful neonazis on dailystormer? https://blog.cloudflare.com/why-we-terminated-daily-stormer/ https://blog.cloudflare.com/why-we-terminated-daily-stormer/ "Earlier today, Cloudflare terminated the account of the Daily Stormer. We've stopped proxying their traffic and stopped answering DNS requests for their sites. We've taken measures to ensure that they cannot sign up for Cloudflare's services ever again." I'll keep using non-logging, encrypted OpenNIC servers, since you seem to selectively censor instead of only blocking terrorists and cp.
- ben509 7y agoI don't think this argument is well stated, so I'll give it a shot. CloudFlare is very basic infrastructure and there are a handful of companies providing such infrastructure, thus a group can be effectively deleted from the Internet if these companies decide or are pressured to do so. (Example of pressuring: Patreon dropped some accounts at the behest of Mastercard.) So maybe the real question is, "does this notion of the integrity of DNS extend to other basic infrastructure services?"
- dwild 7y agoHow does doing this censor them? The Daily Stormer is free to get their business elsewhere and it's still up on the internet. Cloudflare didn't want to be associated to this kind of content, and thus terminated their business relation. We don't NEED Cloudflare to keep the internet integrity (if we did, it will go pretty badly...) but we do need DNS to keep the internet integrity. > I'll keep using non-logging, encrypted OpenNIC servers, since you seem to selectively censor instead of only blocking terrorists and cp. Why are you censoring Cloudflare? /s
- CloudNetworking 7y agotl;dr: Don't use 1.1.1.1 if you use any services that use DNS geolocation to bring you resources from the closest datacentre. These include: Office 365, Netflix, Facebook, Google services, ...