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1.1.1.1: Fast, privacy-first consumer DNS service

blog.cloudflare.com

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Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#71
This is bad, bad, bad advice. You don't set the DNS on your local machine. That breaks things. The DNS needs to be set at the gateway. If you change your PC/mac's DNS to an external service, you won't be able to resolve any addresses on the local network.

Come on, CloudFlare. You guys know better than that. Please stop breaking the (local) internet.

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#72

9.9.9.9 [1] has been praised by a bunch of people in the thread from a couple days ago [2]. How do those two compare? [1] https://www.quad9.net/ [2] https://news.ycombinator.com/item?id=16716606

I don't use them (even though I would love to) because it takes approximately 3x as long to reach the server.

To compare the two, together with Google's DNS as a reference, from a fast connection:

    64 bytes from 1.1.1.1: icmp_seq=5 ttl=59 time=3.62 ms
    64 bytes from 8.8.8.8: icmp_seq=5 ttl=60 time=3.60 ms 
    64 bytes from 9.9.9.9: icmp_seq=5 ttl=60 time=9.20 ms
...and from a slower (home) connection:

    64 bytes from 1.1.1.1: icmp_seq=5 ttl=58 time=11.1 ms
    64 bytes from 8.8.8.8: icmp_seq=5 ttl=59 time=11.9 ms
    64 bytes from 9.9.9.9: icmp_seq=5 ttl=59 time=34.2 ms
Note that I just used the speed of every fifth package instead of the average for five packets in order to keep the comment relatively short and more humanly readable than "rtt min/avg/max/mdev".

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#74
post #66
post #58

Just curious: can somebody shed light on how they got the 1.1.1.1 IP address?

APNIC's research group held the IP addresses 1.1.1.1 and 1.0.0.1. While the addresses were valid, so many people had entered them into various random systems that they were continuously overwhelmed by a flood of garbage traffic. APNIC wanted to study this garbage traffic but any time they'd tried to announce the IPs, the flood would overwhelm any conventional network. We talked to the APNIC team about how we wanted t…

Thanks. Since https://1.1.1.1/ was posted the other day (https://news.ycombinator.com/item?id=16716606), we've changed the URL above to that blog post.

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#75

Earlier quoted context omitted.

On the contrary, they've taken 2 big steps that are better than ISPs (not sure about Google): * no logging * DNS over HTTPS

Google is one of the first ones using DNS over HTTPS. BTW if you want to use DNS over HTTPS on Linux/Mac I strongly recommend dnscrypt proxy V2 (golang rewrite) https://github.com/jedisct1/dnscrypt-proxy and put e.g. cloudflare in their config toml file to make use of it.

The whole point of encrypting DNS traffic is to hide it from the likes of Google.

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#76

This is bad, bad, bad advice. You don't set the DNS on your local machine. That breaks things. The DNS needs to be set at the gateway. If you change your PC/mac's DNS to an external service, you won't be able to resolve any addresses on the local network. Come on, CloudFlare. You guys know better than that. Please stop breaking the (local) internet.

Ordinary users don't have anything that resolves to local IPs, so this is a non-issue for just about anybody. Plus, many if not most ISP-provided modem-router-AP-boxes don't let you configure the DNS server they use, making your recommendation impossible to follow for most users. Someone who runs services on their local network likely knows enough to do as you say, but for 99% of people, these instructions are exactly what they need.

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#77
post #7

Today I learned that it is possible to request a certificate for an IP address.

Yup, the Subject Alternative Name (often misunderstood as an alias, but "Alternative" here is meant in the sense of this is the Internet's _Alternative_ way to name things versus the X.500 series directory hierarchy that the X.509 certificates are originally intended for) can be one of several distinct types, the two relevant for servers are dnsName and ipAddress. dnsName can be any er, name, in the DNS hierarchy, or…

Using an ip instead of a domain name like this allows the possibility of dns rebinding attacks, right?

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#78

This is bad, bad, bad advice. You don't set the DNS on your local machine. That breaks things. The DNS needs to be set at the gateway. If you change your PC/mac's DNS to an external service, you won't be able to resolve any addresses on the local network. Come on, CloudFlare. You guys know better than that. Please stop breaking the (local) internet.

I have couple machines in a local network and never cared about them beeing discovarable /sharing between.

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#79

This is bad, bad, bad advice. You don't set the DNS on your local machine. That breaks things. The DNS needs to be set at the gateway. If you change your PC/mac's DNS to an external service, you won't be able to resolve any addresses on the local network. Come on, CloudFlare. You guys know better than that. Please stop breaking the (local) internet.

This is useful for use cases for which that doesn't matter. Using your computer or devices at home, on your own wifi, where there is no need to resolve local addresses. Or on public wifi, such as in a café, where there is no need to resolve local addresses, and you don't control the gateway.

Re: 1.1.1.1: Fast, privacy-first consumer DNS service

#80

This is bad, bad, bad advice. You don't set the DNS on your local machine. That breaks things. The DNS needs to be set at the gateway. If you change your PC/mac's DNS to an external service, you won't be able to resolve any addresses on the local network. Come on, CloudFlare. You guys know better than that. Please stop breaking the (local) internet.

How many people have local DNS at home? Not many, I'd wager. How many know how to access their router? Also not many.

Besides, "In your router’s configuration page, locate the DNS server settings."

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