tor-relays

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42 participants
4821 discussions

New obfsproxy release: obfsproxy-0.2.7 [bridge operators: please upgrade!]
by George Kadianakis 24 Mar '14

24 Mar '14

Hello, a few days after the release of obfsproxy-0.2.6, we spotted a bug where scramblesuit would basically reject clients if they try to connect a second time after a short amount of time has passed [0]. This is a serious correctness bug and bridge operators are advised to upgrade to obfsproxy-0.2.7 as soon as possible (we want to start suggesting scramblesuit to users and we need to make sure that most bridges have already upgraded by then). You can use git master or pip to upgrade to 0.2.7. We have also notified the obfsproxy Debian maintainers and we should soon have obfsproxy-0.2.7 packages ready (we will send an email to this list when they are ready). Furthermore, obfsproxy-0.2.7 clients now support SOCKS5 (thanks Yawning!) and the changes also include a few performance enhancements for obfs3 and scramblesuit. Please upgrade your bridges. Thanks! PS: We will do yet another obfsproxy release soon-ish (probably in the next 2 weeks) which will include some more scramblesuit improvements and other miscellaneous code changes. Again, we will inform you by sending an email to this list. [0]: https://trac.torproject.org/projects/tor/ticket/11100

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External connections to port 9050
by Greg W 24 Mar '14

24 Mar '14

I turned on some logging on my firewall today to help troubleshoot and issue and noticed a load of connections from external addresses to port 9050 on my exit node. I don't think that should be publicly accessible. Am I wrong about it being publicly accessible and does anyone else see lots of connection attempts on that port? Thanks, Greg

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Why would consensus weight would be declining like this?
by Tora Tora Tora 23 Mar '14

23 Mar '14

Declining dramatically https://atlas.torproject.org/#details/90743CFA1B93295B9334CC0C625D22990AABA… vs https://atlas.torproject.org/#details/CC2F7C6ED12B67CB3882B98213E02DEF2CB82… that is holding steady

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Exiting only port 8333
by Mike Hearn 23 Mar '14

23 Mar '14

I would like to be an exit for port 8333 only. I have configured my relay to do this, but I am not being listed with the relay flag and do not see any traffic exiting my node (at least not using arm). I saw an FAQ that says this is because you have to exit web traffic to get marked as an exit. I do not wish to do this. Is there any way to exit just one port?

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Re: [tor-relays] tor-relays Digest, Vol 38, Issue 27
by Oliver Schönefeld 23 Mar '14

23 Mar '14

Am 22.03.2014 um 21:04 schrieb tor-relays-request(a)lists.torproject.org: > Send tor-relays mailing list submissions to > tor-relays(a)lists.torproject.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays > or, via email, send a message with subject or body 'help' to > tor-relays-request(a)lists.torproject.org > > You can reach the person managing the list at > tor-relays-owner(a)lists.torproject.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of tor-relays digest..." > Today's Topics: > > 1. new fingerprint after update (Oliver Sch?nefeld) > 2. Re: new fingerprint after update (Alexander Dietrich) > 3. Re: new fingerprint after update (I) > 4. Re: Relay configuration for FreedomBox (James Valleroy) > 5. Re: new fingerprint after update (Roger Dingledine) > 6. Re: Relay configuration for FreedomBox (Lunar) > 7. Re: Relay configuration for FreedomBox (Lance Hathaway) > > Von: Oliver Schönefeld <oliver.schoenefeld(a)me.com> > Betreff: [tor-relays] new fingerprint after update > Datum: 22 .März 2014 15:26:07 MEZ > An: tor-relays(a)lists.torproject.org > Antwort an: tor-relays(a)lists.torproject.org > > > Hi guys, > > i updated from Tor 0.2.3.25 (relay 266C0CADC79F802C554019887324A57332A1DA70) to Tor 0.2.4.21 yesterday and the relay fingerprint changed to 07E333A3B979C27739096C5B2EE10D7C8E3D8FFD. > > Is there any way to get the new version working with the old fingerprint? > I looked in the manual and tried adding a DirAuthority line in the torrc file, which looks as the following: > DirAuthority 123tor *:9030 FINGERPRINT > > But then Tor doesn't start. > > I also tried writing the old fingerprint in the fingerprint file, but it's changed to the new one everytime i start Tor. > > > So thanks for your help in advance and have a nice weekend everybody! > > Oli > > > > Von: Alexander Dietrich <alexander(a)dietrich.cx> > Betreff: Aw: [tor-relays] new fingerprint after update > Datum: 22 .März 2014 15:47:29 MEZ > An: tor-relays(a)lists.torproject.org > Antwort an: tor-relays(a)lists.torproject.org > > > Is it possible that either the "DataDirectory" setting changed due to the update or the directory content? > yes, because vidalia isn't part of the game anymore - yes i'm a little late with the update :( > Best regards, > Alexander > --- > PGP Key: 0xC55A356B | https://dietrich.cx/pgp > > On 2014-03-22 15:26, Oliver Schönefeld wrote: >> Hi guys, >> i updated from Tor 0.2.3.25 (relay >> 266C0CADC79F802C554019887324A57332A1DA70) to Tor 0.2.4.21 yesterday >> and the relay fingerprint changed to >> 07E333A3B979C27739096C5B2EE10D7C8E3D8FFD. >> Is there any way to get the new version working with the old >> fingerprint? >> I looked in the manual and tried adding a DirAuthority line in the >> torrc file, which looks as the following: >> DirAuthority 123tor *:9030 FINGERPRINT >> But then Tor doesn't start. >> I also tried writing the old fingerprint in the fingerprint file, but >> it's changed to the new one everytime i start Tor. >> So thanks for your help in advance and have a nice weekend everybody! >> Oli >> _______________________________________________ >> tor-relays mailing list >> tor-relays(a)lists.torproject.org >> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays > > > > > Von: I <beatthebastards(a)inbox.com> > Betreff: Aw: [tor-relays] new fingerprint after update > Datum: 22 .März 2014 17:58:58 MEZ > An: tor-relays(a)lists.torproject.org > Antwort an: tor-relays(a)lists.torproject.org > > > ...and the t-shirt counter at Atlas.torproject.org resets > there are worse things than that - but thanks for the reminder to claim it ;) > > Von: James Valleroy <james.valleroy(a)gmail.com> > Betreff: Aw: [tor-relays] Relay configuration for FreedomBox > Datum: 22 .März 2014 19:56:12 MEZ > An: tor-relays(a)lists.torproject.org > Antwort an: tor-relays(a)lists.torproject.org > > > On Wed, Mar 19, 2014 at 9:25 AM, Lance Hathaway <qhltx(a)yahoo.com> wrote: >> If you're going to be running these as bridges, it seems to make sense >> to include obfsproxy support, probably with obfs3 and scramblesuit [0] >> enabled right off the bat. > > Thanks for the information. Is it likely that obfs3 and scramblesuit > will be usable in the long-term? Or will they need to be deprecated at > some point like obfs2? > > Also, if obfs3 or scramblesuit were deprecated, but some FreedomBoxes > continued to run those transports, what would be the result? Would the > worst case be that the bridge is no longer usable by some, as in [0]? > > The reason that I'm asking is that FreedomBox is currently working > within Debian "testing" but our target is Debian "stable". Once our > packaged configuration is frozen for the next stable release, it will > be more difficult for us to push changes other than security fixes. > > [0] https://trac.torproject.org/projects/tor/ticket/10314 > > > > > Von: Roger Dingledine <arma(a)mit.edu> > Betreff: Aw: [tor-relays] new fingerprint after update > Datum: 22 .März 2014 19:57:50 MEZ > An: tor-relays(a)lists.torproject.org > Antwort an: tor-relays(a)lists.torproject.org > > > On Sat, Mar 22, 2014 at 03:26:07PM +0100, Oliver Schönefeld wrote: >> i updated from Tor 0.2.3.25 (relay 266C0CADC79F802C554019887324A57332A1DA70) to Tor 0.2.4.21 yesterday and the relay fingerprint changed to 07E333A3B979C27739096C5B2EE10D7C8E3D8FFD. > > https://www.torproject.org/docs/faq#UpgradeOrMove > >> I looked in the manual and tried adding a DirAuthority line in the torrc file, which looks as the following: >> DirAuthority 123tor *:9030 FINGERPRINT >> >> But then Tor doesn't start. > > Yeah, that's not at all what DirAuthority is for. Can you help us > understand what made you think this was a good idea to try, so we can > fix it in the man page? :) > >> I also tried writing the old fingerprint in the fingerprint file, >> but it's changed to the new one everytime i start Tor. > > Hopefully the above faq entry helps. > > Thanks for running a relay! > --Roger > > thank you so much, roger! i copied the old /keys folder and it's working like a charm. i basically ctrl+f'ed "fingerprint" in the stable manual and the DirAuthority property was the only one that made sense, since i don't run a bridge. but i have to admit that i didn't read the NOTE section... shame on my head. thank y'all! > > > > Von: Lunar <lunar(a)torproject.org> > Betreff: Aw: [tor-relays] Relay configuration for FreedomBox > Datum: 22 .März 2014 20:23:49 MEZ > An: tor-relays(a)lists.torproject.org > Antwort an: tor-relays(a)lists.torproject.org > > > James Valleroy: >> The reason that I'm asking is that FreedomBox is currently working >> within Debian "testing" but our target is Debian "stable". Once our >> packaged configuration is frozen for the next stable release, it will >> be more difficult for us to push changes other than security fixes. > > (Debian hat on:) I try to keep Debian backports as up-to-date as possible. > Are official backports out of your set of allowed packages as well? > > -- > Lunar <lunar(a)torproject.org> > > > > Von: Lance Hathaway <qhltx(a)yahoo.com> > Betreff: Aw: [tor-relays] Relay configuration for FreedomBox > Datum: 22 .März 2014 21:03:43 MEZ > An: tor-relays(a)lists.torproject.org > Antwort an: tor-relays(a)lists.torproject.org > > > Signierter PGP Teil > On 22/03/2014 11:56 AM, James Valleroy wrote: > > Thanks for the information. Is it likely that obfs3 and > > scramblesuit will be usable in the long-term? Or will they need to > > be deprecated at some point like obfs2? > > > > Also, if obfs3 or scramblesuit were deprecated, but some > > FreedomBoxes continued to run those transports, what would be the > > result? Would the worst case be that the bridge is no longer usable > > by some, as in [0]? > > > > The reason that I'm asking is that FreedomBox is currently working > > within Debian "testing" but our target is Debian "stable". Once > > our packaged configuration is frozen for the next stable release, > > it will be more difficult for us to push changes other than > > security fixes. > > > > [0] https://trac.torproject.org/projects/tor/ticket/10314 > > I can't speak to whether more pluggable transports will be deprecated > in future, but I'll go out on a limb here and say "probably." The > nature of things ensures that the capabilities of censors continue to > advance. And as they do, new approaches will be found and deployed to > bypass those advancing attempts to block the network. > > When bridges were first deployed, the fact that they weren't all > openly listed in a public directory made them more difficult to block. > Now, most plain bridges are very easy to block. When obfs2 was first > deployed, it was a solid protocol (I have no doubt). These days, China > is actively hunting down and blocking obfs2. There is very little > point to deploying either a plain bridge or an obfs2 pluggable > transport these days, especially on a mass scale. > > On the plus side, obfs3 is still pretty strong, and it's one of the > common pluggable transports right now. Scramblesuit is not live in the > official bundles yet (AFAIK), but it just released and has some pretty > robust-looking defenses against active probing and other attacks. If > you're working on something new to deploy, these should be included, > without a doubt. They may indeed be deprecated in future, and in the > worst case may become unusable or make the bridge more susceptible to > being blocked. But if you go with a plain bridge or obfs2, you're > already in your worst-case scenario. You have nothing to lose and > everything to gain by enabling the newest pluggable transports. > > I would highly recommend adding the Tor package repository to the > FreedomBoxes. As explained in [0], this won't always give you the > latest version of tor, but it will provide security fixes. My hunch is > that it will almost always also be a little fresher than Debian > stable. And given that network censors and network developers are > always going to be in an escalating arms race, enabling new releases > of Tor (and obfsproxy) directly from the project is going to make the > FreedomBox much more useful in the long term. > > -Lance > > [0] https://www.torproject.org/docs/debian > > > > > _______________________________________________ > tor-relays mailing list > tor-relays(a)lists.torproject.org > https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays

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"Invalid length on ESTABLISH_RENDEZVOUS."
by Tora Tora Tora 23 Mar '14

23 Mar '14

I am testing 0.2.5.2-alpha for non-exit relay and seeing lots of "Invalid length on ESTABLISH_RENDEZVOUS" errors. Any cause for concern?

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Best price/efficiency ratio
by Trigger Happy 23 Mar '14

23 Mar '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi list, I'm running tor-relay (middle) on VPS from statnet.pl (reseller form Hetzner) https://globe.torproject.org/#/relay/C528972A915EEADE37F5B11A7AB7B571C89F46… Now i'm in top 50 of all relays for only 8,3 euro/month i think it's a good deal . Do You know better options ? - -- Trigger Happy jabber: triggerhappy(a)jabber.ccc.de torchat: xruq34bnhbqlkjtn -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJTLfftAAoJEEtm9wC9fGLFFJsP/RADCmlr3/8aTUrdefsOEgk8 CeDCQGasCuQ/iPNdJRCpILkiz7s+SM2FBzMLQVpDUiM5A9VD8aLOfnvhNGjKo4eo uaJUc7t1GrDlhDBzd4C7kV5o48hMeqP/61iDFR0eEO3sH5EIheV3io1fEzQc3XmW hGpgRR0SnfS0VDeQp4FhKXtxfiw4Dp7UMgRS9wQbI7TbFhdETkFjn4YvDIi1AfXg 8xH1xMUhfpJo4wa4RY1+UG+aa7X90HbF278QWlUnMdHiOr1VK3dgbRiV5cvYRF1U XZ6Jr+hDBWScn0dxxKWnebCqRIdh2mmn3G2aF9MdZ9WEaNwoNMzd+NAhUQy43vFr M3w3HZ3NJbVHA2WwQRFfVlg675Z4/PI+Uh60SGMHZoTXRVM2AFYQwUk9r4Mwbfwi qU8jj7pa228gwk5HYBgnOQMRFX/mpqe/Ww82qf/c1YispX+6JvevlfOKe2BF5X0t 66XIMNPJ+639h70XOcFJJyoe/mvbw21N0FZoShrFjAnoIDXyZek5LY1rGkdm4g5j 6w4F6RMQkEuK61eSFTC1lPhpUrUwkkCrBoU+Gg0rAFiqSYytT/rvSgtdlfbhcOlu SoMPY8rR6sG6b6Ib1YumiMXNc+fpT+9QbBxoaVxbORyLtvvb78dH8PcpQdwj79KK 9M0CeGy7A6Ex6tvcDVOf =h07G -----END PGP SIGNATURE-----

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Relay configuration for FreedomBox
by James Valleroy 23 Mar '14

23 Mar '14

Hello, The FreedomBox project [1] is planning to include Tor in the upcoming 0.2 release. FreedomBox is intended to be used as an always-on server, so its Tor node has been configured as a bridge relay. There is also a need for FreedomBoxes to be able to find each other regardless of location or restrictive firewall. This feature is not yet completely implemented for FreedomBox, but it will likely involve each box running a Tor hidden service, and making the initial connection to other boxes over the Tor network. Here is the configuration that we are currently using in /etc/tor/torrc: ORPort 4431 BridgeRelay 1 Exitpolicy reject *:* It is based on example configuration for bridge relays given in the Tor documentation [2] but modified to still allow SOCKS connections. Do you see any vulnerabilities, attacks, or risks with the current configuration, and are there any changes that you would recommend? [1] https://wiki.debian.org/FreedomBox [2] https://www.torproject.org/docs/bridges#RunningABridge Thanks

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new fingerprint after update
by Oliver Schönefeld 22 Mar '14

22 Mar '14

Hi guys, i updated from Tor 0.2.3.25 (relay 266C0CADC79F802C554019887324A57332A1DA70) to Tor 0.2.4.21 yesterday and the relay fingerprint changed to 07E333A3B979C27739096C5B2EE10D7C8E3D8FFD. Is there any way to get the new version working with the old fingerprint? I looked in the manual and tried adding a DirAuthority line in the torrc file, which looks as the following: DirAuthority 123tor *:9030 FINGERPRINT But then Tor doesn't start. I also tried writing the old fingerprint in the fingerprint file, but it's changed to the new one everytime i start Tor. So thanks for your help in advance and have a nice weekend everybody! Oli

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Exit node re-writing PKI certificates?
by Iggy 21 Mar '14

21 Mar '14

Hey all, I use an email account from riseup.net, which I usually access via Thunderbird, running on a linux machine. My Thunderbird is configured to check mail via TOR. Earlier tonight I got a certificate warning message from thunderbird, saying that mail.riseup.net:465 was presenting a certificate that had been issued to cab.cabinethardwareparts.com on 03-01-2014, and expiring on 03-01-2015. Oddity among oddities, this does not match the issue dates of the other certificate reported below. Whois returns no match for cabinethardwareparts.com When I mentioned this on a Riseup IRC channel, I was told that there had previously (02-28-2014) been a help ticket from a riseup mail user, accessing their account via TOR, who had a certificate error involving a certificate issued to the same domain. So, I guess I just wanted to alert you all to the fact that this is happening. I'm not sure what it means. Is the exit node in question pointing my traffic at somewhere other than mail.riseup.net:465? Is the exit node re-writing the traffic to include the bad certificate? If so, why? If part of a MITM scheme, why not use a certificate issued to mall.riseup.net or mail.riseop.net, or something else less obvious than cab.cabinethardwareparts.com? I am more curious than anything, and any thoughts are appreciated. I'll paste the details from the previous help ticket below, since they actually captured more details about the bad certificate than I did. Kind Regards, -Iggy =-=-=-=-==-=-==-=- PASTED TEXT BEGINS =-=-==-=-=-=-=--=- Hi there wonderful riseup birds, Today I was attempting to sent a GPGd email to another riseup.net user but thunderbird flagged that a suspicious certificate was being served whose address did not match riseup.net. Its common name was: cab.cabinethardwareparts.com Serial 01:E3:94:E1:BD issued on: 05/03/13 expires: 05/03/14 organization: unknown The key was: Modulus (2048 bits): ba 29 4e f5 89 c8 4c 61 76 4c 08 fe 2e d9 4d af 8f 47 20 2b cb ee 00 56 d3 9b 4c 47 8c ee 75 f5 94 f8 65 f3 83 71 12 ed 32 ef 92 4e 25 90 ac df 4c 82 e6 6e 4e df b2 a9 48 f0 2a 7a 21 bd 10 01 7d fc 31 b4 93 ca ec ec 99 b2 91 e1 04 a7 5c 39 72 55 1f ee 74 49 4c e7 75 fe 84 67 a9 ff 81 74 e5 1e 35 db 2b 93 e1 f5 74 96 6b 19 3a 54 a3 0d 90 b1 8f 0c 2f e2 4f f1 13 5a ad c5 37 4e b5 93 54 70 54 7f 04 6b 30 58 fc f8 c8 15 04 c7 f6 90 25 9f 45 4b 38 9e 28 e8 ec df 7d 06 d4 0f d1 9c 2e 6c 9d ad 90 65 ce e4 de a0 5a 8a 14 fc b4 32 26 c9 2d 7e 91 fc c3 90 1c 52 9d 93 f0 47 38 d3 b1 66 27 38 0a 2f 2a 08 31 7c ea 62 fa 66 1d f2 90 4d 0f 8b 42 78 7b 69 00 c8 4a b3 84 4c c6 e0 a3 0d ce 91 b2 e7 75 6a c1 34 76 22 4e e4 df 85 1c d2 19 d5 2e ca 91 71 be 4e fd d3 81 2e e5 83 Exponent (24 bits): 65537 =-=-=-=-==-=-==-=- PASTED TEXT ENDS =-=-==-=-=-=-=--=-

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