Hey everyone!

Here are our meeting logs: http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-05-12-15.58.html http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-03-31-15.59.html

And our meeting pad:

Anti-censorship work meeting pad --------------------------------

Next meeting: Thursday May 19th 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?sc...         * 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%...         * Sponsor 96             * https://gitlab.torproject.org/groups/tpo/-/milestones/24

== Announcements ==

*

== Discussion ==

* Snowflake doesn't work in Russia (connection failure by timeout)         * there are some anomalies in OONI for RU, but they are not higher than some coutries like CA         * most of snowflake users are comming from Russia, it works at least for some         * stunreachability measurements show 3 (of 12) STUN servers inaccessible in Russia, 2 blocked by Russian ISPs, 1 possibly geoblocking of users in Russia             * https://explorer.ooni.org/chart/mat?probe_cc=RU&test_name=stunreachabili...         * flakey bridge-stats still show plenty of connections from Russia today         * whoever added this discussion item is not here to supply more details     * Moat gives blocklisted(ru) bridges in Russia (e.g. https://metrics.torproject.org/rs.html#details/1807BF9A521468998385F179DDBF9...)         * meskio will investigate it

== Actions ==

*

== Interesting links ==

*

== Reading group ==

* We will discuss "Understanding the Impact of Encrypted DNS on Internet Censorship, ACM WWW 2021" on May 19th, 2022         * https://shhaos.github.io/papers/www21-DoE.pdf         * 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.

anadahz: 2022-01-27     Last week:         - Increase timeout check cycles for default-bridge-felix-1 and default-bridge-felix-2 as they have been generating too many alerts: https://gitlab.torproject.org/tpo/anti-censorship/monit-configuration/-/merg...

cecylia (cohosh): last updated 2022-05-12     Last week:     - work on conjure PT     - review of Distributed snowflake server support (snowflake!87)     This week:     - continue work on conjure PT     - continue snowflake maintenance tasks     Needs help with:

dcf: 2022-05-12     Last week:         - started to look at OONI stunreachability measurements from Russia     Next week:         - look at STATUS VERSION proposal https://gitlab.torproject.org/tpo/core/torspec/-/merge_requests/63         - set up access control on the snowflake-02 bridge https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         - write up observations on OONI stunreachability measurements from Russia     Help with:

arlolra: 2022-04-07     Last week:         - Merged the rest of snowflake !81     Next week:       - Get to snowflake-webext #10     Evergreen:         - Figure out where in pion/webrtc ALPN should be configured and used         - Maybe add Chacha20Poly1305 to pion/dtls         https://github.com/pion/dtls#planned-features https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...     Help with:         -

maxb: 2021-09-23     Last week:         - Worked on https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... re: utls for broker negotiation         - Had conversation with someone about upstream utls http round tripper https://github.com/refraction-networking/utls/pull/74         - Too busy with work :/     Next week:         - _Really_ want to get a PR for utls round tripper

meskio: 2022-05-12     Last week:             - add location to circumvention settings (rdsys#108)             - use a worker to write telegram metrics (rdsys!39)             - deploy a test setup for dynamic bridges updates API (rdsys#98)             - prepare demhack.ru hackathon challenge (team#61)             - configure our mergerequest assignments bot so cohosh only gets snowflake ones (TriageOps!8)     Next week:             - rethink distributor retries to the rdsys backend (rdsys#99)             - use systemd to run bridgedb (team#72)

Shelikhoo: 2022-05-12    Last Week:      - [Merge Request] Add Distributed Snowflake Server Support (snowflake!87)         - [Merge Request Awaiting] Add SOCKS5 forward proxy support to snowflake (snowflake!64)         - [Merge Request Review] Telegram distributor hands both new and old bridges to old accounts (snowflake!37)         - [Research & Coding] WebSocket + CDN Based Probe Control Connection Forwarder (shelikhoo/LogCollectorAncillary#3)         - [Coding & Deployment] Proposal: Centralized Probe Result Collector (anti-censorship/team#54)         - [Discussion] Opening 8443 port on probetelemetry-01@ for V2Ray Websocket Connection Inbound (continue)    Next Week:           - [Coding] Distributed Snowflake Bridges (continue)           - [Merge Request] Add Distributed Snowflake Server Support (snowflake!87)           - [Coding & Deployment] Proposal: Centralized Probe Result Collector (anti-censorship/team#54)           - [Research & Coding & Coding] WebSocket + CDN Based Probe Control Connection Forwarder (shelikhoo/LogCollectorAncillary#3)           - [Research & Coding] Implement metrics to measure snowflake churn (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)

Itchy Onion: 2022-05-12     Last week:         - prepared for Georgetown meeting (read code/docs about snowflake)     This week:         - audit PI meeting         - working on the snowflake issues assigned to me         - review MRs assigned to me

HackerNCoder: 2021-12-16     This week:     Last/done:         Setup web mirror on tor.encryptionin.space     Next:         Get (new VPs with) new IP and setup new web mirror on new domain