[tor-project] Anti-censorship team meeting notes, 2022-09-22
Shelikhoo
shelikhoo at torproject.org
Thu Sep 22 17:12:13 UTC 2022
Hey everyone!
Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-09-22-15.58.html
And our meeting pad:
Anti-censorship work meeting pad
--------------------------------
Next meeting: Thursday Sept 29 16:00 UTC
Weekly meetings, every Thursday at 16:00 UTC, in #tor-meeting at OFTC
(channel is logged while meetings are in progress)
== Goal of this meeting ==
Weekly check-in about the status of anti-censorship work at Tor.
Coordinate collaboration between people/teams on anti-censorship at Tor.
== Links to Useful documents ==
* Our anti-censorship roadmap:
* Roadmap:
https://gitlab.torproject.org/groups/tpo/anti-censorship/-/boards
* The anti-censorship team's wiki page:
*
https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/home
* Past meeting notes can be found at:
* https://lists.torproject.org/pipermail/tor-project/
* Tickets that need reviews: from sponsors we are working on:
* All needs review tickets:
*
https://gitlab.torproject.org/groups/tpo/anti-censorship/-/merge_requests?scope=all&utf8=%E2%9C%93&state=opened&assignee_id=None
* Sponsor 28
* must-do tickets:
https://gitlab.torproject.org/groups/tpo/-/milestones/10
* possible tickets:
https://gitlab.torproject.org/groups/tpo/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name%5b%5d=Sponsor%2028&milestone_title=None
* Sponsor 96
* https://gitlab.torproject.org/groups/tpo/-/milestones/24
== Announcements ==
*
== Discussion ==
* snowflake-01 bridge running into resource limitations
* need to increase number of tor instances at least
*
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40173
* also running into other resource limitations: CPU cannot be
increased much more, and snowflake-server is periodically restarting due
to a lack of memory
* the snowflake-01 bridge is one of the largest relays in
the network. compare to
https://metrics.torproject.org/rs.html#toprelays. snowflake-01 had 72
MB/s average throughout August 2022, so it is right up there with the
top relays.
* tried in the past to decrease resource requirements of
snowflake-server, without much results
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40086
* will at least recompile snowflake-server with a
recent golang compiler when redeploying this time
* what about making snowflake the default recommendation in
Iran? https://gitlab.torproject.org/tpo/anti-censorship/rdsys/-/issues/119
* possible, but there are still concerns about load at the
bridge
* how close are we to being able to start using the
snowflake-02 bridge?
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/28651
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40129
* will be necessary soon, because snowflake-01 cannot scale
forever
* the limiting factor at this point is the number of
proxies that multi-bridge aware
* only about 30% of available proxies are multi-bridge aware
* is 30% sufficient for current client demand?
* most proxies are browser add-ons, which should
automatically update
* shelikhoo will investigate why such a large fraction
of proxies have not updated
* does connection assist help with getting clients to use a
second bridge, or does it require a new Tor Browser release?
* connection assist likely does not help, since old
clients will not know how to send the bridge fingerprint they want to
the broker -- if they use the -02 fingerprint but do not tell the broker
that, the broker will connect them with the -01 bridge, and the
connection will fail
* Gettor Telegram Bot down. Fix deployed
* increase in user result in hit Telegram API Limit
* Fix deployed to restore it to working state
* Community Team developed a guide for IR circumvention
*
https://forum.torproject.net/t/iran-circumventing-censorship-with-tor/4590
* currently awaiting translation
== Actions ==
== Interesting links ==
== Reading group ==
* We will discuss "" on
*
* Questions to ask and goals to have:
* What aspects of the paper are questionable?
* Are there immediate actions we can take based on this work?
* Are there long-term actions we can take based on this work?
* Is there future work that we want to call out in hopes
that others will pick it up?
== Updates ==
Name:
This week:
- What you worked on this week.
Next week:
- What you are planning to work on next week.
Help with:
- Something you need help with.
cecylia (cohosh): last updated 2022-09-08
Last week:
- took a look at Snowflake mDNS issue (snowflake#40123)
- worked on Snowflake manifest v3 webextension fixes
(snowflake-webext#29)
This week:
- Snowflake web extension v3 manifest
- usability improvements to chrome badge helper
- finish updating Firefox extension to mv3
- a few quality of life conjure issues
-
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/conjure/-/issues/?sort=updated_desc&state=opened&assignee_username%5B%5D=cohosh&first_page_size=20
Needs help with:
dcf: 2022-09-22
Last week:
- snowflake CDN bookkeeping
https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Snowflake-costs/diff?version_id=363dbbcf5c3598491a82c7cbff77a97ff6403a0d
- submitted merge request to change the format of placeholder
pluggable transport addresses to work with FascistFirewall,
ReachableAddresses
https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/issues/40624
- investigated recent increased usage of snowflake and opened
issue to increase the number of tor instances
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40173
Next week:
- increase number of tor instances on snowflake-01 bridge
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40173
- disable non-WireGuard SSH access to snowflake-02
- migrate goptlib to gitlab
https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/86#note_2823122
- try Conjure PT development version
https://forum.torproject.net/t/tor-dev-introducing-a-conjure-pt-for-tor/4429
Help with:
meskio: 2022-09-08
Last week:
- plan obfs4proxy 0.0.14 update (obfs4#40008)
- package obfs4proxy 0.0.14 for debian
- test obfs4proxy backward compatibility
- rdsys-gettor is deployed, planning for the final switch
- deploy more BridgeDB fixes
- submit a project proposal for Outreachy
Next week:
- deploy rdsys-gettor
- fix language issues in BridgeDB (bridgedb#40056)
Shelikhoo: 2022-09-22
Last Week:
- [Merge Request Awaiting] Add SOCKS5 forward proxy support to
snowflake (snowflake!64)
- [Discussion & Deployment] Rollout of Distributed Snowflake
Support
- [Coding & Deployment] Proposal: Centralized Probe Result
Collector (anti-censorship/team#54)
- [Research] HTTPT Planning
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/httpt/-/issues/1
- In Person Meetup!
- [Research] Log Collector Performance Collection (Bootstrap time)
- Write Survival Guide For Log Collector
https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Survival-Guides/LogCollector-Survival-Guide
- [Deployment] Emergency fix for OnionSproutsBot
https://gitlab.torproject.org/tpo/anti-censorship/gettor-project/onionsproutsbot/-/commit/0067121ff606a8a908729f12d63e570cd19dddd6
Next Week:
- [Research] WebTunnel Planning (Continue)
- Generate Charts for presention:
https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/92#note_2836476
Itchy Onion: 2022-09-22
Last week:
- several attempts (adjusting various timeout, trying the obfs
approach of creating a smux session, and reserching other options) to
fix the RACE unclosed TCP connection issue
(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40160).
This week:
- update snowflake plugin API to RACE 2.3.x
(https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/58)
- I learned yesterday that there is a working build of
snowflake 2.2.x from Eliana. I have requested the code and am still
waiting for it. Will ask again in my 1-1 meeting with Eliana later today
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