Reachability of fallback directories
The OONI probe TCP connect test (run by default from many probes) currently tests the TCP connectivity (successful connection: true/false) of the directory authorities and brigdes.
This ticket is about adding the fallback directories (https://gitweb.torproject.org/tor.git/plain/src/or/fallback_dirs.inc) to the TCP connect OONI probe test (https://github.com/TheTorProject/ooni-spec/blob/master/test-specs/ts-008-tcp-connect.md).
Ideally this list should be easily generated (with the help of a script) and be accurate (up to date). The list currently lives on the ooni-resource repository: https://github.com/OpenObservatory/ooni-resources/blob/master/bridge_reachability/tor-bridges-ip-port.csv
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