# tor-relays **URL:** https://forum.torproject.org/c/mailing-lists/tor-relays/25.md [Latest](https://forum.torproject.org/latest.md) · [Categories](https://forum.torproject.org/categories.md) · [Tags](https://forum.torproject.org/tags.md) --- ## [About the tor-relays category](https://forum.torproject.org/t/about-the-tor-relays-category/102)
**Author:** [@system](https://forum.torproject.org/u/system)\ **Replies:** 0\ **Last updated:** [October 19, 2021, 7:54pm UTC](https://forum.torproject.org/t/about-the-tor-relays-category/102 "2021-10-19T19:54:50Z")
This is a read-only mirror of the tor-relays mailing list. --- ## [\[tor-relays\] How is this attack causing 900 Mbps download and 100 Mbps upload?](https://forum.torproject.org/t/tor-relays-how-is-this-attack-causing-900-mbps-download-and-100-mbps-upload/22099)
**Author:** [@forest](https://forum.torproject.org/u/forest)\ **Replies:** 15\ **Last updated:** [September 22, 2026, 11:44pm UTC](https://forum.torproject.org/t/tor-relays-how-is-this-attack-causing-900-mbps-download-and-100-mbps-upload/22099 "2026-09-22T23:44:21Z")
Hello. I'm experiencing a very strange high-bandwidth attack against my exit F79C822281CB1001E589296C80ABA6EA5DC7E36A. At first it was a directory fetch attack, slowing it to a crawl due to upload exceeding 700 Mbps … --- ## [\[tor-relays\] Amplification Attack?](https://forum.torproject.org/t/tor-relays-amplification-attack/22165)
**Author:** [@providedlan](https://forum.torproject.org/u/providedlan)\ **Replies:** 0\ **Last updated:** [September 22, 2026, 1:59am UTC](https://forum.torproject.org/t/tor-relays-amplification-attack/22165 "2026-09-22T01:59:53Z")
Hi there, regarding the current attack on the network, I can only add that my suspicion is some kind of amplification attack. As other operators also noticed, I see normal inbound traffic flows but excessive outbound f… --- ## [\[tor-relays\] Re: Programmatically determine if a relay is hibernating](https://forum.torproject.org/t/tor-relays-re-programmatically-determine-if-a-relay-is-hibernating/22145)
**Author:** [@forest](https://forum.torproject.org/u/forest)\ **Replies:** 1\ **Last updated:** [September 17, 2026, 2:02pm UTC](https://forum.torproject.org/t/tor-relays-re-programmatically-determine-if-a-relay-is-hibernating/22145 "2026-09-17T14:02:54Z")
Hello. Roger Dingledine wrote: I just tested by configuring a controlsocket and it seems to survive hibernation too. If yours doesn't, please file a bug -- but make sure that it isn't a Stem bug first. This is Tor… --- ## [\[tor-relays\] Should I switch my guards to exits?](https://forum.torproject.org/t/tor-relays-should-i-switch-my-guards-to-exits/22116)
**Author:** [@lists](https://forum.torproject.org/u/lists)\ **Replies:** 2\ **Last updated:** [September 16, 2026, 7:15pm UTC](https://forum.torproject.org/t/tor-relays-should-i-switch-my-guards-to-exits/22116 "2026-09-16T19:15:02Z")
Background: At the time, our AS was generating ~25% of the exit traffic. I then configured one server with 40 exit relays and another with 40 guard relays. We are now only generating ~16%. It’s actually a real shame… --- ## [\[tor-relays\] Family-ID for bridges](https://forum.torproject.org/t/tor-relays-family-id-for-bridges/22115)
**Author:** [@lists](https://forum.torproject.org/u/lists)\ **Replies:** 2\ **Last updated:** [September 16, 2026, 2:51pm UTC](https://forum.torproject.org/t/tor-relays-family-id-for-bridges/22115 "2026-09-16T14:51:26Z")
Hiho, I'm unsure whether I should apply a "Family key" to my bridges. - tor-spec says: we get bridge families "for free" - hiro says Serge & rdsys is not ready yet: I don't mind. I would like to change the bridges … --- ## [\[tor-relays\] Re: DDoS solution for Tor nodes - nftables variant implemented](https://forum.torproject.org/t/tor-relays-re-ddos-solution-for-tor-nodes-nftables-variant-implemented/22121)
**Author:** [@lists](https://forum.torproject.org/u/lists)\ **Replies:** 1\ **Last updated:** [September 13, 2026, 7:04pm UTC](https://forum.torproject.org/t/tor-relays-re-ddos-solution-for-tor-nodes-nftables-variant-implemented/22121 "2026-09-13T19:04:21Z")
Yay, I've been wondering for years why you aren't using nftables. :wink: 2 hints: - Use \`auto-merge\` and \`interval\` flag in dynamic sets. - Block crazy packets like this in line 172, in chain 'ingress' before conntra… --- ## [\[tor-relays\] Re: DDoS solution for Tor nodes - nftables variant implemented](https://forum.torproject.org/t/tor-relays-re-ddos-solution-for-tor-nodes-nftables-variant-implemented/22119)
**Author:** [@forest](https://forum.torproject.org/u/forest)\ **Replies:** 0\ **Last updated:** [September 13, 2026, 9:22am UTC](https://forum.torproject.org/t/tor-relays-re-ddos-solution-for-tor-nodes-nftables-variant-implemented/22119 "2026-09-13T09:22:02Z")
Hello. I eventually managed to have it \[1\] for nftables too and will continue to maintain both variants. I wrote an nftables port as well, with some adjustments. It relies on populating an nftables set with the lis… --- ## [\[tor-relays\] Complete list of Tor Metrics keys](https://forum.torproject.org/t/tor-relays-complete-list-of-tor-metrics-keys/22112)
**Author:** [@forest](https://forum.torproject.org/u/forest)\ **Replies:** 0\ **Last updated:** [September 12, 2026, 5:33am UTC](https://forum.torproject.org/t/tor-relays-complete-list-of-tor-metrics-keys/22112 "2026-09-12T05:33:40Z")
Hello. In order to analyze the ongoing DDoS attack, I'm collecting metrics data need a "dictionary" containing a typical metrics output in order to get a better compression ratio. The best I have comes from: curl -… --- ## [\[tor-relays\] PSA: 0.4.8.x is EOL now, please upgrade!](https://forum.torproject.org/t/tor-relays-psa-0-4-8-x-is-eol-now-please-upgrade/21676)
**Author:** [@GeKo](https://forum.torproject.org/u/GeKo)\ **Replies:** 1\ **Last updated:** [September 2, 2026, 9:14am UTC](https://forum.torproject.org/t/tor-relays-psa-0-4-8-x-is-eol-now-please-upgrade/21676 "2026-09-02T09:14:49Z")
Hello! As a reminder for those of you still running any 0.4.8.x Tor version (be it as a relay or a bridge): please upgrade! The 0.4.8.x series is end-of-life since 2 days ago and you should see a respective warning in y… --- ## [\[tor-relays\] Snowflake setup fail](https://forum.torproject.org/t/tor-relays-snowflake-setup-fail/22023)
**Author:** [@John\_Thompson](https://forum.torproject.org/u/John_Thompson)\ **Replies:** 16\ **Last updated:** [August 29, 2026, 1:41am UTC](https://forum.torproject.org/t/tor-relays-snowflake-setup-fail/22023 "2026-08-29T01:41:02Z")
Repeated blacklisting while running a tor relay has persuaded me to try a snowflake proxy instead. I want to run a stand-alone proxy on Almalinux-9.8. Following the instructions on Tor Project | Docker setup, I have inst… --- ## [\[tor-relays\] False-positive abuse reports from XMission's exit relay made against other relays](https://forum.torproject.org/t/tor-relays-false-positive-abuse-reports-from-xmissions-exit-relay-made-against-other-relays/22034)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 1\ **Last updated:** [August 26, 2026, 1:58am UTC](https://forum.torproject.org/t/tor-relays-false-positive-abuse-reports-from-xmissions-exit-relay-made-against-other-relays/22034 "2026-08-26T01:58:40Z")
Hello. An ISP in Utah, XMission, runs their own Tor exit under the fingerprint E3DB2E354B883B59E8DC56B3E7A353DDFD457812. Their exit has been running for 14 whole years! But in the last few years, they appear to have … --- ## [\[tor-relays\] Why is my MTBF so low?](https://forum.torproject.org/t/tor-relays-why-is-my-mtbf-so-low/22028)
**Author:** [@tor.kmv82](https://forum.torproject.org/u/tor.kmv82)\ **Replies:** 1\ **Last updated:** [August 24, 2026, 6:30pm UTC](https://forum.torproject.org/t/tor-relays-why-is-my-mtbf-so-low/22028 "2026-08-24T18:30:01Z")
Hello, my relay (pizzasauce — Tor Relay in Germany (AS51167) | 1AEO Tor Metrics) currently has a stable uptime of 16 days. However, all directory authoritys, except moria and longclaw show a MTBF of 0.6 days-1 days. So… --- ## [\[tor-relays\] OT: How much Internet traffic overall is from Tor?](https://forum.torproject.org/t/tor-relays-ot-how-much-internet-traffic-overall-is-from-tor/21964)
**Author:** [@Lars\_Nooden](https://forum.torproject.org/u/Lars_Nooden)\ **Replies:** 0\ **Last updated:** [August 7, 2026, 6:23pm UTC](https://forum.torproject.org/t/tor-relays-ot-how-much-internet-traffic-overall-is-from-tor/21964 "2026-08-07T18:23:22Z")
Greetings, Are there any recent data estimating the percentage (or absolute volume) of Internet traffic which is from Tor? I suppose these metrics have been covered at some conferences now and again, but I cannot find … --- ## [\[tor-relays\] Tor activities at Defcon](https://forum.torproject.org/t/tor-relays-tor-activities-at-defcon/21961)
**Author:** [@arma](https://forum.torproject.org/u/arma)\ **Replies:** 0\ **Last updated:** [August 6, 2026, 7:50pm UTC](https://forum.torproject.org/t/tor-relays-tor-activities-at-defcon/21961 "2026-08-06T19:50:57Z")
Hi folks! Many Tor people are here at Defcon this weekend. You can find us at: (1) Our booth, in the non-profit vendor area near EFF and others. People will be there Friday Saturday Sunday during daytime hours. Check o… --- ## [\[tor-relays\] Post-Quantum Cryptography in Tor's TLS Layer: Help needed!](https://forum.torproject.org/t/tor-relays-post-quantum-cryptography-in-tors-tls-layer-help-needed/21288)
**Author:** [@ahf](https://forum.torproject.org/u/ahf)\ **Replies:** 6\ **Last updated:** [August 6, 2026, 2:56pm UTC](https://forum.torproject.org/t/tor-relays-post-quantum-cryptography-in-tors-tls-layer-help-needed/21288 "2026-08-06T14:56:37Z")
Hello Tor Relay Operators, With the arrival of OpenSSL 3.5.0 in 2025, we finally had an important missing piece of infrastructure to start enabling the Tor network to support Post-Quantum Cryptography in the outermost c… --- ## [\[tor-relays\] Re: for tiny tor instances: 3 Tor config values worth to try out](https://forum.torproject.org/t/tor-relays-re-for-tiny-tor-instances-3-tor-config-values-worth-to-try-out/21952)
**Author:** [@ahf](https://forum.torproject.org/u/ahf)\ **Replies:** 0\ **Last updated:** [August 5, 2026, 11:32am UTC](https://forum.torproject.org/t/tor-relays-re-for-tiny-tor-instances-3-tor-config-values-worth-to-try-out/21952 "2026-08-05T11:32:29Z")
Toralf, I have to give you a shout-out for all the community work you always put in, with helpful advice on both this list and #tor-relays on IRC/Matrix. You're often the first to report legit bugs to us on the Network … --- ## [\[tor-relays\] Tor Relay Crash](https://forum.torproject.org/t/tor-relays-tor-relay-crash/21934)
**Author:** [@Lavender\_I\_Tor\_Relay](https://forum.torproject.org/u/Lavender_I_Tor_Relay)\ **Replies:** 4\ **Last updated:** [August 4, 2026, 1:17am UTC](https://forum.torproject.org/t/tor-relays-tor-relay-crash/21934 "2026-08-04T01:17:50Z")
Hello, I've been tearing my hair out a bit lately. I launched a Tor middle relay a few weeks ago, but every so often, I get a dramatic spike in upload traffic, and the relay becomes almost unusable—or even crashes... I … --- ## [\[tor-relays\] Heads up: anti-censorship tools now packaged on deb.torproject.org](https://forum.torproject.org/t/tor-relays-heads-up-anti-censorship-tools-now-packaged-on-deb-torproject-org/21930)
**Author:** [@Micah\_Anderson](https://forum.torproject.org/u/Micah_Anderson)\ **Replies:** 1\ **Last updated:** [August 1, 2026, 11:49am UTC](https://forum.torproject.org/t/tor-relays-heads-up-anti-censorship-tools-now-packaged-on-deb-torproject-org/21930 "2026-08-01T11:49:43Z")
Greetings, We're currently preparing 4 new Debian packages to be included in the Tor Project Debian repository hosted at "deb.torproject.org" in the coming days: \* lyrebird \* webtunnel \* snowflake-proxy … --- ## [\[tor-relays\] Re: reply to: 5 to 10 times more outgoing than incoming traffic](https://forum.torproject.org/t/tor-relays-re-reply-to-5-to-10-times-more-outgoing-than-incoming-traffic/21932)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 1\ **Last updated:** [August 1, 2026, 11:22am UTC](https://forum.torproject.org/t/tor-relays-re-reply-to-5-to-10-times-more-outgoing-than-incoming-traffic/21932 "2026-08-01T11:22:44Z")
Hello. Tor at 1AEO wrote: It's directory serving Is the attack coming from the same few IPs? Would rate-limiting output (with a very generous burst allowance) per-IP be effective here? I assume these different att… --- ## [\[tor-relays\] about vanguards](https://forum.torproject.org/t/tor-relays-about-vanguards/21933)
**Author:** [@Markus\_Reichelt](https://forum.torproject.org/u/Markus_Reichelt)\ **Replies:** 0\ **Last updated:** [July 31, 2026, 1:57pm UTC](https://forum.torproject.org/t/tor-relays-about-vanguards/21933 "2026-07-31T13:57:11Z")
Hi, I do wonder if is deprecated/dead/no longer needed. Already asked on IRC but got no reply. And then there is Thanks for any pointers. ▶ ··· --- ## [\[tor-relays\] Re: Circuit-building DoS wave: 20x peak, 8x sustained circuits on guard relays since Jun 25](https://forum.torproject.org/t/tor-relays-re-circuit-building-dos-wave-20x-peak-8x-sustained-circuits-on-guard-relays-since-jun-25/21922)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 0\ **Last updated:** [July 28, 2026, 8:02am UTC](https://forum.torproject.org/t/tor-relays-re-circuit-building-dos-wave-20x-peak-8x-sustained-circuits-on-guard-relays-since-jun-25/21922 "2026-07-28T08:02:03Z")
Hello. Toralf Förster wrote: Some estimation and more considerations were made in \[1\] and \[2\] That's interesting. I suppose I could just disable the limits for other relays and only keep the limits for non-relays. … --- ## [\[tor-relays\] Re: Circuit-building DoS wave: 20x peak, 8x sustained circuits on guard relays since Jun 25](https://forum.torproject.org/t/tor-relays-re-circuit-building-dos-wave-20x-peak-8x-sustained-circuits-on-guard-relays-since-jun-25/21921)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 0\ **Last updated:** [July 28, 2026, 1:22am UTC](https://forum.torproject.org/t/tor-relays-re-circuit-building-dos-wave-20x-peak-8x-sustained-circuits-on-guard-relays-since-jun-25/21921 "2026-07-28T01:22:31Z")
Hello. Toralf Förster wrote: Blocking a /24 subnet blocks up to 253 victims (Tor clients, Tor bridges etc, somethg else) if 1 malicious user is able to place a relay there. That's possible but unlikely. I don't see… --- ## [\[tor-relays\] Re: Circuit-building DoS wave: 20x peak, 8x sustained circuits on guard relays since Jun 25](https://forum.torproject.org/t/tor-relays-re-circuit-building-dos-wave-20x-peak-8x-sustained-circuits-on-guard-relays-since-jun-25/21918)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 0\ **Last updated:** [July 27, 2026, 2:28am UTC](https://forum.torproject.org/t/tor-relays-re-circuit-building-dos-wave-20x-peak-8x-sustained-circuits-on-guard-relays-since-jun-25/21918 "2026-07-27T02:28:08Z")
Hello. I'm finding very good success automatically blocking an entire /24 (and /64 for IPv6) with a \>8/m over 2m and 16/h over 1h. Obviously the list of Tor relays is whitelisted (kept up to date with the cached conse… --- ## [\[tor-relays\] 1gbp/s Tor Relay](https://forum.torproject.org/t/tor-relays-1gbp-s-tor-relay/21901)
**Author:** [@Lavender\_I\_Tor\_Relay](https://forum.torproject.org/u/Lavender_I_Tor_Relay)\ **Replies:** 4\ **Last updated:** [July 25, 2026, 2:09am UTC](https://forum.torproject.org/t/tor-relays-1gbp-s-tor-relay/21901 "2026-07-25T02:09:30Z")
Hello, I was wondering if it’s possible to allocate 1 Gbps of bandwidth to my Tor relay, or if it would be better to create multiple instances on the same server? I have a dedicated server in a data center. When I look… --- ## [\[tor-relays\] relayor v26.2.0 is released - Goodbye "MyFamily"](https://forum.torproject.org/t/tor-relays-relayor-v26-2-0-is-released-goodbye-myfamily/21663)
**Author:** [@nusenu](https://forum.torproject.org/u/nusenu)\ **Replies:** 8\ **Last updated:** [July 22, 2026, 8:18am UTC](https://forum.torproject.org/t/tor-relays-relayor-v26-2-0-is-released-goodbye-myfamily/21663 "2026-07-22T08:18:16Z")
Hi, relayor v26.2.0 is released. This release marks the end of "MyFamily" support in relayor. Since all supported tor versions support the Happy Family design there is no reason to continue supporting the old "MyFami… --- ## [\[tor-relays\] Re: If the IPv6 ORPort can't be reached, will clients/relays fall back to the IPv4 ORPort?](https://forum.torproject.org/t/tor-relays-re-if-the-ipv6-orport-cant-be-reached-will-clients-relays-fall-back-to-the-ipv4-orport/21898)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 3\ **Last updated:** [July 21, 2026, 10:47am UTC](https://forum.torproject.org/t/tor-relays-re-if-the-ipv6-orport-cant-be-reached-will-clients-relays-fall-back-to-the-ipv4-orport/21898 "2026-07-21T10:47:42Z")
Hello. rE-Bo0t.bx1 wrote: Short answer: no, Tor doesn't do Happy Eyeballs for OR connections. Whatever address family gets picked for a connection attempt is what gets tried, and if it fails, that's it for that atte… --- ## [\[tor-relays\] Re: adaption of a DDoS prevention solution](https://forum.torproject.org/t/tor-relays-re-adaption-of-a-ddos-prevention-solution/21899)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 0\ **Last updated:** [July 21, 2026, 6:34am UTC](https://forum.torproject.org/t/tor-relays-re-adaption-of-a-ddos-prevention-solution/21899 "2026-07-21T06:34:28Z")
Hello. Thankfully you do publish the source code. I've adapted it to IPv6, but I have some concerns. For example, I frequently see various Hetzner IPs getting quickly added to the blacklist. They appear to be from a r… --- ## [\[tor-relays\] If the IPv6 ORPort can't be reached, will clients/relays fall back to the IPv4 ORPort?](https://forum.torproject.org/t/tor-relays-if-the-ipv6-orport-cant-be-reached-will-clients-relays-fall-back-to-the-ipv4-orport/21897)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 0\ **Last updated:** [July 20, 2026, 9:52pm UTC](https://forum.torproject.org/t/tor-relays-if-the-ipv6-orport-cant-be-reached-will-clients-relays-fall-back-to-the-ipv4-orport/21897 "2026-07-20T21:52:57Z")
Hello. If a client or relay with IPv6 attempts to connect to a relay's IPv6 ORPort and receives no response, will it fall back to IPv4 or will it consider the relay unreachable? Assume that the directory authorities … --- ## [\[tor-relays\] Re: adaption of a DDoS prevention solution](https://forum.torproject.org/t/tor-relays-re-adaption-of-a-ddos-prevention-solution/21893)
**Author:** [@forest-relay-contact](https://forum.torproject.org/u/forest-relay-contact)\ **Replies:** 1\ **Last updated:** [July 20, 2026, 3:08am UTC](https://forum.torproject.org/t/tor-relays-re-adaption-of-a-ddos-prevention-solution/21893 "2026-07-20T03:08:43Z")
Hello. It would be good if you could describe the operation of the firewall in detail so that I can more easily re-implement it with nftables. What is described on the README doesn't seem to be the entire picture. I'… [Next page](https://forum.torproject.org/c/mailing-lists/tor-relays/25.md?page=1)