[tor-relays] obfs4 bridge port question

[torix at protonmail.com]

Thank you all for your helpful replies.  Now that I know, RTFMx3 makes it seem obvious, but I was stumped.  --Torix


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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Sunday, May 10, 2020 2:07 AM, Roger Dingledine <arma at torproject.org> wrote:

> On Sat, May 09, 2020 at 01:15:46PM -0700, Eddie wrote:
>
> > > Bridge obfs4 <IP ADDRESS>:<PORT> <FINGERPRINT> cert=<CERTIFICATE> iat-mode=0
> > > I have all the parts mentioned in the text except for <PORT>.
> >
> > It's the port from this line:  ServerTransportListenAddr obfs4
> > 0.0.0.0:<port> where the odfs4 is listening.
>
> Right. Or if you didn't set a ServerTransportListenAddr line in your
> torrc file, then you can get it either from the log line:
>
> [notice] Registered server transport 'obfs4' at '[::]:46396'
>
> or from a corresponding line the 'state' file in your DataDirectory.
>
> But really, if you didn't choose it via ServerTransportListenAddr, you
> probably haven't set up port forwarding for it, or made a hole for it
> in your firewall, or whatever you will need to do to make it reachable
> from the outside.
>
> You can test reachability for it using this tool that Philipp set up:
> https://bridges.torproject.org/scan/
>
> Bridges don't yet automatically test reachability for their obfs4 port
> (sad but true).
>
> Thanks!
> --Roger
>
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