Re: [tor-bugs] #29258 [Circumvention/Snowflake]: Provide an IPv6 address for the Snowflake broker

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#29258: Provide an IPv6 address for the Snowflake broker
--------------------------------------------+------------------------------
 Reporter:  ahf                             |          Owner:  dcf
     Type:  task                            |         Status:  needs_review
 Priority:  Medium                          |      Milestone:
Component:  Circumvention/Snowflake         |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  anti-censorship-roadmap-august  |  Actual Points:
Parent ID:                                  |         Points:
 Reviewer:                                  |        Sponsor:
                                            |  Sponsor28-must
--------------------------------------------+------------------------------

Comment (by dcf):

 Replying to [comment:12 dcf]:
 > Today we decided to start by pointing the snowflake-
 broker.torproject.net DNS, which is currently unused, at the new broker,
 so we can test it ourselves.
 >
 > #32128 is for that.

 snowflake-broker.torproject.net is now set up for us. Using the following
 proxy-go command and torrc I was able (using an IPv6 connection to the
 broker) to connect to myself and bootstrap to 100%.

 {{{
 ./proxy-go -broker https://snowflake-broker.torproject.net
 }}}

 {{{
 UseBridges 1
 DataDirectory datadir

 ClientTransportPlugin snowflake exec ./client \
 -url https://snowflake-broker.torproject.net/ \
 -ice stun:stun.l.google.com:19302 \
 -log snowflake.log \
 -max 3

 Bridge snowflake 0.0.3.0:1
 }}}

 I did have to first upgrade the version of
 golang.org/x/crypto/acme/autocert compiled into the broker, for a protocol
 change:
 {{{
 go get -u golang.org/x/crypto/acme/autocert
 }}}
 Before doing this, I was getting these errors in the broker logs, linking
 to https://community.letsencrypt.org/t/end-of-life-plan-for-acmev1/88430.
 {{{
 2019/10/17 19:37:32 http: TLS handshake error from [scrubbed]: 403
 urn:acme:error:unauthorized: Account creation on ACMEv1 is disabled.
 Please upgrade your ACME client to a version that supports ACMEv2 / RFC
 8555. See https://community.letsencrypt.org/t/end-of-life-plan-for-
 acmev1/88430 for details.
 2019/10/17 19:37:37 http: TLS handshake error from [scrubbed]:
 acme/autocert: missing certificate
 2019/10/17 19:37:41 http: TLS handshake error from [scrubbed]:
 acme/autocert: missing certificate
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29258#comment:13>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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