July 2019 - tor-relays - lists.torproject.org

Re: [tor-relays] Call for setting up new obfs4 bridges
by nottryingtobelame＠protonmail.com 08 Jul '19

08 Jul '19

Hello, I successfully ran an obfs4 bridge about a year ago that saw moderate traffic. After a few months, the traffic died off until I was consistently seeing 0 clients. I wiped the keys, got a new IP address, and started a new bridge. The 2nd bridge saw 0 clients, over several months. I finally wiped it again and started a 3rd bridge. Same thing, 0 clients for several months. My 4th bridge, which I took down last night, was up for just shy of 3 months with 0 clients. Before I took it down, I tested using https://bridges.torproject.org/scan/ and confirmed the ports were reachable. While I was not able to test the previous iterations, I setup the port forwarding for each of them for both the OR Port and the Ext OR Port that it randomly assigned. I won't be able to grab a new IP address this time, but I'm starting the bridge up again with new ID keys and new ports. Is it normal for bridges to see no traffic, and if they're not seeing any, should I keep them online?

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Testing the accessibility of my obfs4 bridge
by nottryingtobelame＠protonmail.com 08 Jul '19

08 Jul '19

I plugged my bridgeline into Tor Browser on Windows, and connected successfully. I put it into Orbot on Android and also connected successfully. But when I put it into the new Tor Browser for Android, I am unable to connect. The logs from Tor Browser are pasted here: https://pastebin.com/cF5bwRH1. Any idea why one client would be failing to connect? Thanks in advance.

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ExoneraTor results may be incomplete between April 25 and 30, 2019 and during other periods
by Karsten Loesing 08 Jul '19

08 Jul '19

Hello relay operators, it turns out that our exit scanner had an issue between April 25 and 29, 2019 and that ExoneraTor results may be incomplete during this time. Some context, taken from the ExoneraTor page: https://metrics.torproject.org/exonerator.html "The ExoneraTor service maintains a database of IP addresses that have been part of the Tor network. It answers the question whether there was a Tor relay running on a given IP address on a given date. ExoneraTor may store more than one IP address per relay if relays use a different IP address for exiting to the Internet than for registering in the Tor network, and it stores whether a relay permitted transit of Tor traffic to the open Internet at that time." Now, if somebody looks up their exit IP address during the time between April 25 and 29, 2019, their relay won't be listed in the results. It will still be included with the IP address that it used for registering at the directory authorities, but not with its exit IP address. I looked through the archive of exit lists and found similar downtimes of 18 hours or longer which would have the same effect: Gap of 19 hours between 2011-09-10T00:05:00 and 2011-09-10T19:28:46. Gap of 23 hours between 2011-12-21T01:21:19 and 2011-12-22T00:23:36. Gap of 111 hours between 2012-02-07T02:33:16 and 2012-02-11T18:07:47. Gap of 26 hours between 2013-03-07T15:16:50 and 2013-03-08T17:17:55. Gap of 156 hours between 2013-03-14T09:29:25 and 2013-03-20T22:03:41. Gap of 19 hours between 2015-10-09T14:13:37 and 2015-10-10T09:57:26. Gap of 18 hours between 2018-02-02T18:27:54 and 2018-02-03T13:06:09. Gap of 122 hours between 2019-04-25T13:13:19 and 2019-04-30T15:40:21. Gap of 21 hours between 2019-05-25T19:04:43 and 2019-05-26T16:09:23. We're working on adding a notice to ExoneraTor results in case a lookup falls into one of these periods, but that will take us some time. https://trac.torproject.org/projects/tor/ticket/31071 Sorry for any confusions caused by this! All the best, Karsten

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obfs4 relay lost stable flag
by tor 01 Jul '19

01 Jul '19

Hi I've been running an obfs4 bridge for about a month. My hashed fingerprint is: E120A0492F789F5367EAD84C64F92EE279018F98 I recently lost the stable flag. Not sure why. Any thoughts? thanks matt

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