[tor-project] Remove mercurius4 obfs4 bridge from Tor Browser?

[David Fifield]

On Thu, Aug 04, 2016 at 06:53:32PM -0400, David Goulet wrote:
> On 04 Aug (22:51:32), isis agora lovecruft wrote:
> > David Fifield transcribed 1.8K bytes:
> > > On Mon, Jul 18, 2016 at 08:42:30PM -0400, David Goulet wrote:
> > > > On 18 Jul (17:36:54), David Fifield wrote:
> > > > > According to my and Lynn Tsai's bridge reachability measurements, the
> > > > > default obfs4 bridge mercurius4 has not been running for a few months.
> > > > > 
> > > > > It was refusing connections in March and April, and more recently has
> > > > > just been timing out. Time to remove it?
> > > > > 
> > > > > pref("extensions.torlauncher.default_bridge.obfs4.6", "obfs4 104.131.108.182:56880 EF577C30B9F788B0E1801CF7E433B3B77792B77A cert=0SFhfDQrKjUJP8Qq6wrwSICEPf3Vl/nJRsYxWbg3QRoSqhl2EB78MPS2lQxbXY4EW1wwXA iat-mode=0");
> > > > 
> > > > I'm not sure what's the requirement to get a bridge in Tor Browser but if you
> > > > are looking for a replacement, I've set up an obfs4 bridge couple weeks ago on
> > > > a server that is pretty fast an with a nice port (443). If it could be useful,
> > > > please let me known!
> > 
> > Yes, this would be great!  We need a lot more bandwidth for the TB default
> > obfs4 bridges — the current bridges are pretty saturated.
> > 
> > > Yes, we're interested in having more bridges. Let's coordinate with Lynn
> > > and the TB maintainers so we can start measuring its reachability in
> > > advance. You should first block the bridge's ORPort, in order to keep it
> > > out of BridgeDB--that will help us in our blocking-delay experiment.
> > 
> > Were tickets ever created for removing mercurius4 and adding David Goulet's
> > bridge?
> 
> Nope. Please lead the way :) or inform me what is needed on the ticket?

mercurius4 is gone already in 6.0.3 and 6.5a2 (#19714).

I'm hoping we can introduce one other bridge at the same time as David's
so we can do another test about whether they get blocked simultaneously.