June 2026 - tor-relays - lists.torproject.org

Tor relay doing 400 Mbps up, 50 Mbps down until reboot
by forest-relay-contact＠cryptolab.net 11 Jul '26

11 Jul '26

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hello. One of my relays, 54C85B97B4A5253483AA269B341C4CCF9328C443, had 400 Mbps up and only 50 Mbps down for several hours. Performance got so bad that could barely SSH in. Unfortunately, I rebooted before doing diagnostics and the problem has not happened since, so I couldn't see if Tor logged asymmetric bandwidth use in its heartbeat. Nothing in the logs indicate anything abnormal. This started on Jun 25th, 12:30 AM UTC and continued until I rebooted at around 4:00 AM UTC. Tor's CPU use was 100% for the duration of this event and the uplink was not saturated. Is this something that has happened before? Could it be some DoS attack? As far as I know, the only way to get Tor to use asymmetric bandwidth is to use it as a directory mirror. Regards, forest -----BEGIN PGP SIGNATURE----- iHUEARYKAB0WIQQtr8ZXhq/o01Qf/pow+TRLM+X4xgUCaj2vuwAKCRAw+TRLM+X4 xhhPAQDqw7+xxZWmOUP00rTmyT1brTFdkTRwEUWWmSdx1njWLAEA8lttz57jLKO7 zZSJyBW02z8rMKds0SpRiP2heVBfFwQ= =ecuY -----END PGP SIGNATURE-----

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Post-Quantum Cryptography in Tor's TLS Layer: Help needed!
by Alexander Hansen Færøy 01 Jul '26

01 Jul '26

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 cryptographic layer of the Tor protocol. Since Tor version 0.4.8.17, we have supported the x25519/ML-KEM-768 hybrid handshake in our TLS layer, and we have gradually seen more relays supporting it in the production network. Tor Browser has been built against OpenSSL >= 3.5.0 since (at least) version 13.5.22, released in September 2025, and therefore supports Post-Quantum TLS handshakes today, but it requires that its guard node supports it. We need to give a big shout-out to the OpenSSL Team here to get this out and available to the masses! <3 Since Q3 2025, I've been running some semi-regular scans of the Tor production network to check for TLS cipher suite availability. This work started as part of the first Tor Community Gathering back in October, 2025[1]. The results are as follows: In January, around 28% of the Tor relays supported the Post-Quantum TLS handshake. The scan I did yesterday showed an increase of around 4 percentage points to 32.32%. Out of 9476 scanned relays, 9185 were reachable, 291 were unreachable. Of the 9185 reachable relays, I saw the following distribution of cipher suites: `TLS13_AES_256_GCM_SHA384`: 9023 relays. `TLS13_CHACHA20_POLY1305_SHA256`: 158 relays. `TLS13_AES_128_GCM_SHA256`: 4 relays. For the key exchange groups, I saw the following distribution: `secp256r1`: 6212 relays. `X25519MLKEM768`: 2969 relays. `X25519`: 4 relays. Of the Directory Authorities, 5 of them supported the `X25519MLKEM768` key exchange group during the TLS handshakes. 2969 / 9185 * 100 = 32.32% of relays support the `X25519MLKEM768` cipher suite. This number is a good start, but we should ideally bump it up! You can see the individual results for your relay(s) in the big table available at https://ahf.me/tor-tls-pqc/2026-02-26/ -- entries without a cipher suite or key exchange group were unreachable at the time I ran the scan. These missing entries can be due to a network problem anywhere on the path between my host and yours, so don't get worried if your relay is missing :-) The scanner I used is free software and is available as part of the Network Health Team's Margot tool[2], used for various analysis purposes. Please note that the goal here isn't to enumerate all available cipher suites for each relay, but instead I'm interested in the "strongest" possible cipher suite my custom client can negotiate with each relay. My ask for you as the relay operator community here is as follows: Next time you folks are doing maintenance on your relay(s), please have a look at whether you can upgrade either your packages or underlying software distribution to a version such that you either get a new enough version of OpenSSL (>= 3.5.0), or if you are a LibreSSL user, check whether the LibreSSL project supports the ML-KEM hybrid handshake, and upgrade to that version. It looks like the LibreSSL project is currently working towards supporting the ML-KEM handshake in the next upcoming release[3]. For Debian users, to get a new enough OpenSSL version that supports the PQC TLS handshake, you need to upgrade to (at least) Debian Trixie. For everybody else, it's best to check your respective software distribution's package management system to find the version you need to upgrade to. For Arti users, a licensing issue with the currently available crypto providers in Arti prevented enabling the ML-KEM handshake. Nick, however, has recently been making progress on this matter and has a patch up that is now pending upstream review[4]! :-) If you are excited about exploring different aspects of the Tor ecosystem, talking with other Tor enthusiasts, and you have nothing planned for your weekend in two weeks, I highly encourage you to look into the next Tor Community Gathering in Denmark. The event takes place from 2026-03-13 to 2026-03-15. For more information, check out our website at https://onionize.space/2026/ Thank you all for all the work you do to make Tor better! <3 Cheers, Alex [1]: https://onionize.space/2025/ [2]: https://gitlab.torproject.org/tpo/network-health/margot/ [3]: https://github.com/libressl/portable/blob/a989b7acb9a475fde656e48dbcb38289d… [4]: https://github.com/RustCrypto/rustls-rustcrypto/pull/143 -- Alexander Hansen Færøy

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GeoIPFile option warning
by krishna e bera 27 Jun '26

27 Jun '26

I am seeing these warnings in Tor's notices.log: Mar 24 09:42:21.000 [notice] Configured to measure directory request statistics, but no GeoIP database found. Please specify a GeoIP database using the GeoIPFile option. Mar 24 09:42:21.000 [notice] Configured to measure entry node statistics, but no GeoIP database found. Please specify a GeoIP database using the GeoIPFile option. However the option is set in torrc and i verified the files are at those locations and readable by all: GeoIPFile /usr/local/share/tor/geoip GeoIPv6File /usr/local/share/tor/geoip6 Any hints how i could check whether the warnings are spurious or dump what the running config actually is? I know it is reading the torrc because introducing an error in the file stops it from loading.

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Maximizing contribution with own ASN + IPv6 — exit vs guard, IPv6 exit, AS diversity
by lists.torproject.org.broker091＠passmail.net 25 Jun '26

25 Jun '26

Hi all, I run my own ASN and announce my own IPv6 prefix via BGP (with valid RPKI ROAs), plus IPv4. I’d like to contribute to the network in the way that adds the most value, and I’d appreciate guidance from experienced operators. My situation: - ASN: own, prefix announced via BGP (IPv6 /48, IPv4 /28) - Bandwidth available: ~100 Mbit/s, monthly traffic budget: unmetered - Willing to handle abuse complaints: yes - rDNS and abuse contact fully under my control My questions: - Given that AS diversity is scarce, is an exit relay the highest-value use here, or does a high-bandwidth guard already help significantly from an underrepresented AS? - IPv6 exit support seems uncommon — is enabling IPv6Exit on my exit a meaningful gap to fill, and any caveats? - Any recommendations on exit policy and per-IP layout within my prefix to balance reachability and abuse handling? - If I run multiple relays, is the new cryptographic family scheme (FamilyId / tor --keygen-family) the right approach over legacy MyFamily? Happy to share more details. Thanks for any pointers.

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relayor v26.2.0 is released - Goodbye "MyFamily"
by nusenu 22 Jun '26

22 Jun '26

Hi, relayor v26.2.0 is released. https://github.com/nusenu/ansible-relayor/releases/tag/v26.2.0 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 "MyFamily" method to declare relay families. relayor is an ansible role that helps you with automating tor relay operations https://github.com/nusenu/ansible-relayor#main-benefits-for-a-tor-relay-ope… Changes since v26.1.0: - remove MyFamily support: The last tor version that required MyFamily (0.4.8.x) in addition to Happy Family support reached end-of-life on 2026-06-01 - use absolute filter name to fix error "No filter named 'ipaddr'" kind regards, nusenu -- https://nusenu.github.io

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deb.torproject.org-keyring package missing in Ubuntu 26.04 (resolute) repo
by nusenu 22 Jun '26

22 Jun '26

Hi, according to https://support.torproject.org/little-t-tor/getting-started/installing/ users should perform: apt install tor deb.torproject.org-keyring but https://deb.torproject.org/torproject.org/dists/resolute/main/binary-amd64/… unlike https://deb.torproject.org/torproject.org/dists/noble/main/binary-amd64/Pac… the resolute repo does not contain the deb.torproject.org-keyring package. kind regards, nusenu -- https://nusenu.github.io

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Re: relay not working 100%
by C. Pe. 16 Jun '26

16 Jun '26

Hi, a very generic advice would be to rather not to throttle the bandwidth to such a low value, but to set a daily(!) quota. A relay running fast, but only a few hours a day is better than a slow relay running all the time. Regards, C Am 2. Juni 2026 um 11:34 schrieb torgnole-relayed via tor-relays <tor-relays(a)lists.torproject.org>: Hi, I'm convinced that tor allows the needed strong anonymity on internet, and I want to contribute. I set up, as a newbie, a middle relay, in february 2026. I rode that a new relay needs to wait something like 80 days before running 100%, the time for the network to check it's liable. It is now running for months, and it is still not running 100%. I have rate-limited the traffic to 500KB/s as for the moment I'm using a low cost VPS. But it appears that it doesn't even reach 70KB/s (it is the best pike in the last days), and even more regrettable, it fell down to 10KB/s or worse since 2-3 days. It used to have 4 flags (Running, Stable, Valid, Fast) but I'm afraid it lose the Rapid flag in the last days. I really don't understand what's going on. Tor logs seem not to show anything helping. Nyx used to show thousand of "inbound" and thousands of "outbound", but rarely "circuits" or anything else (I have to say I understand nearly nothing in Nyx, as I can't find any tutorial explaining it deeply). Nowadays, Nyx shows thousands of inbound, but only a very few outbound, something like 20-30. Server dosen't seem to have failings. Tor version is 0.4.9.8. on linux relay is minotor (B438F0D3E2281C307B459DB2ABDDB48871D06C18) at https://metrics.torproject.org/rs.html#details/B438F0D3E2281C307B459DB2ABDD… VPS is on interserver.net (2TB/month). I can send logs or torrc if needed. So my questions are : what's going on with my relay ? How is it possible it is still not running 100% ? is the bandwidth enough for a middle relay, or should I opt for a bridge ? All the best, _______________________________________________ tor-relays mailing list -- tor-relays(a)lists.torproject.org To unsubscribe send an email to tor-relays-leave(a)lists.torproject.org -- Sent with https://mailfence.com Secure and private email

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Banned by Spamhaus and AWS
by Ole Rydahl 16 Jun '26

16 Jun '26

I have been running a non-exit Tor relay since Snowdon and a The Guardian journalist used Tor. I am doing it using my public ip on my home network. 1Tbyte/day roughly. Starting a year ago I was excluded from the Danish "internal revenue services" - skat.dk. However, using the Tor-browser I could still perform my duties there... Now! From May this year, my ip over and over again got listed at Spamhaus. My gateway only allows my MTA to use the ports 25, 465 and 587. Mysterious! Spamhaus' services are used a lot, so it seriously limits who we can send mails to! Spamhaus claims the following: Why was this IP listed? a.b.c.d has been classified as part of a proxy network. There is a type of malware using this IP that installs a proxy that can be used for nearly anything, including sending spam or stealing customer data. This should be of more concern than a Spamhaus listing, which is a symptom and not the problem. The proxy is installed on a device - usually an Android mobile, firestick, smart doorbell, etc, but also iPads, and Windows computers - that is using your IP to send spam DIRECTLY to the internet via port 25: This is very often the result of third party "free" apps like VPNs, channel unlockers, streaming, etc being installed on someone's personal device, usually a phone. After a throughout search for "infections" - including finding out that some Tor-relays are using port 465 and 587 as or-port - I caved in and stopped my tor-relay. After a few days the miracle happened my ban at Spamhaus was lifted _and_ I was allowed access to skat.dk directly. My conclusions based on my experiments so far are: Spamhaus falsely considers my Tor relay as malware and so does AWS. (Skat.dk are performing their services at AWS - judging from the ip's used.) Hilfe!!! /Ole PS: no PTR-record relates my domain and ip and Google's DNS-services are used. PPS: I have opened a number of tickets at Spamhaus. However, I have not been successful in having a meaningful conversation with them - so far.

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Strange SMTP attempts from my tor relay
by Ole Rydahl 12 Jun '26

12 Jun '26

Hi, I have noticed that my firewall registers connection attempts from my tor-server on port 465 and 587. My relay performs normally, so it appears that they have no significance for the operation. Could somebody please explain the logic behind those SMTP connections? I am a bit puzzled! /Ole Rydahl OS: Fedora Linux 43 (Server Edition), Platform: Tor 0.4.9.8 on Linux

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tor weather account deletion
by Marco 08 Jun '26

08 Jun '26

Hello! Where is the place to request account deletion for TOR weather? I do not need this monitoring service anymore. -- kind regards Marco Muell und Spam bitte an abfalleimer2002(a)stinkedores.dorfdsl.de

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