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Date: Tue, 26 May 2015 01:15:46 -0400
From: Peter Todd <pete@petertodd.org>
To: Matt Whitlock <bip@mattwhitlock.name>
Message-ID: <20150526051546.GB23502@savin.petertodd.org>
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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Zero-Conf for Full Node Discovery
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On Tue, May 26, 2015 at 12:52:07AM -0400, Matt Whitlock wrote:
> On Monday, 25 May 2015, at 11:48 pm, Jim Phillips wrote:
> > Do any wallets actually do this yet?
>=20
> Not that I know of, but they do seed their address database via DNS, whic=
h you can poison if you control the LAN's DNS resolver. I did this for a Bi=
tcoin-only Wi-Fi network I operated at a remote festival. We had well over =
a hundred lightweight wallets, all trying to connect to the Bitcoin P2P net=
work over a very bandwidth-constrained Internet link, so I poisoned the DNS=
 and rejected all outbound connection attempts on port 8333, to force all t=
he wallets to connect to a single local full node, which had connectivity t=
o a single remote node over the Internet. Thus, all the lightweight wallets=
 at the festival had Bitcoin network connectivity, but we only needed to ba=
ckhaul the Bitcoin network's transaction traffic once.

Interesting!

What festival was this?

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'peter'[:-1]@petertodd.org
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