Cloudflare is blocking lookups for archive.is

2 pointsby bifrostvor 7 Jahren5 comments

I posted too quickly, apparently this is a long running problem between Cloudflare and archive.is...

Compare ->

% host archive.is 1.1.1.1

archive.is has address 127.0.0.3

vs my machine running a proper local resolver:

% host archive.is

archive.is has address 62.192.168.106

vs Google Quad-8:

% host archive.is 8.8.8.8

archive.is has address 51.38.113.224

5 comments

LinuxBendervor 7 Jahren

This is what I see

    1.1.1.1: 127.0.0.3
    1.0.0.1: 127.0.0.3
    8.8.4.4: 5.196.68.232
    8.8.8.8: 5.196.68.232
    9.9.9.9: 51.38.113.224
    208.67.220.220: 89.163.224.67
    208.67.222.222: 89.163.224.67

[ Edit ] Found your answer [1] Interesting that they dont have a default fallback record if EDNS is not available. Some people (myself included) block it. They should look into Anycast.

[1] - https://jarv.is/notes/cloudflare-dns-archive-is-blocked/

bifrostvor 7 Jahren

Yeah, I eventually dug into it and saw the EDNS thing. I can understand why Cloudflare wants to not pass EDNS but they could also trivially assign a regional but dummy record...

berg01vor 7 Jahren

Seems like archive.is is using DNS-based load-balancing/fail-over. My best guess is that the person/group that's running archive.is is having some operational issues right now and you caught that issue.

For the record: from GCP (using default resolvers, e.g. Google) region europe-north1-a... archive.is resolves to 46.45.185.30.

irtefavor 7 Jahren

It was discussed previously on this thread: https://news.ycombinator.com/item?id=19828317

bifrostvor 7 Jahren

I also looked it up from archive.is's authoritative name servers:

% host archive.is carl.archive.is

archive.is has address 51.38.113.224