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[tor-relays] Re: 1AEO exit relay DNS health checks now classify upstream recursive resolvers



On Tuesday, 13 October 2026 10:36 Tor at 1AEO via tor-relays wrote:
> Hello,
> Exit DNS health checks now include the recursive resolver each exit used.
> Results are on https://exitdnshealth.1aeo.com (raw) and
> https://metrics.1aeo.com (aggregated and specific)
Nice ;-)

A few of mine also returned 'timeouts' today at the time they were being 
attacked.

In general, the entire 185.220.101.32/27 is connected to one PowerDNS Recursor 
+ dnsdist load balancer.

> As a reminder, community best practices recommend running a local
> non-forwarding recursive resolver (e.g., Unbound or BIND on 127.0.0.1)
> rather than pointing to centralized public DNS providers to prevent
> upstream query correlation and metadata logging.
+1

https://community.torproject.org/relay/setup/exit/
"Don't use any of the big DNS resolvers (Google, OpenDNS, Quad9, Cloudflare, 
4.2.2.1-6) as your primary or fallback DNS resolver to avoid centralization."

Or, don't be surprised if your relais get a 'MiddleOnly' flag ;-)

Nice read:
https://nusenu.medium.com/who-controls-tors-dns-traffic-a74a7632e8ca

-- 
╰_╯ Ciao Marco!

Debian GNU/Linux

It's free software and it gives you freedom!

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