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Re: [tor-bugs] #15761 [Tor]: Bridges stop working when UseBridges is set (was: UseBridges and ExitNodes don't play together)
#15761: Bridges stop working when UseBridges is set
------------------------+--------------------------
Reporter: qbi | Owner:
Type: defect | Status: new
Priority: normal | Milestone:
Component: Tor | Version: Tor: 0.2.6.7
Resolution: | Keywords:
Actual Points: | Parent ID:
Points: |
------------------------+--------------------------
Description changed by qbi:
Old description:
> Tor's Q&A page has a [https://tor.stackexchange.com/q/6697/88 question]
> where someone uses bridges and `ExitNodes` and can't get a connection. So
> I tried to reproduce it:
>
> 1. Retrieve some bridges (with obfs3 in this case) and enter them into
> `torrc`.
> 2. Set `ExitNodes {US}`
> 3. restart Tor and everything is fine.
> 4. Add `UseBridges 1` and restart Tor.
>
> Now Tor can't get a connection anymore. I see the following log message
> every second:
>
> {{{
> Apr 21 19:05:42.000 [info] should_delay_dir_fetches(): Delaying dir
> fetches (no running bridges known)
> Apr 21 19:05:42.000 [info] compute_weighted_bandwidths(): Empty
> routerlist passed in to consensus weight node selection for rule weight
> as guard
> }}}
>
> When I remove `UseBridges` and restart Tor everything is fine.
New description:
Tor's Q&A page has a [https://tor.stackexchange.com/q/6697/88 question]
where someone uses bridges and `ExitNodes` and can't get a connection. So
I tried to reproduce it:
1. Retrieve some bridges (with obfs3 in this case) and enter them into
`torrc`.
2. Set `ExitNodes {US}`
3. restart Tor and everything is fine.
4. Add `UseBridges 1` and restart Tor.
Now Tor can't get a connection anymore. I see the following log message
every second:
{{{
Apr 21 19:05:42.000 [info] should_delay_dir_fetches(): Delaying dir
fetches (no running bridges known)
Apr 21 19:05:42.000 [info] compute_weighted_bandwidths(): Empty routerlist
passed in to consensus weight node selection for rule weight as guard
}}}
When I remove `UseBridges` and restart Tor everything is fine.
While trying to tracking it down I figured out that `ExitNodes` doesn't
play a role here. A minimal non-working `torrc` just needs a
`ClientTransportPlugin`, some obfs3 bridges and `UseBridges`.
--
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15761#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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