📅 Original date posted:2015-05-26
📝 Original message:Who would be performing a Sybil attack against themselves? We're talking about a LAN here. All the nodes would be under the control of the same entity. In that case, you actually want them all connecting solely to a central hub node on the LAN, and the hub node should connect to "diverse and unpredictable" other nodes on the Bitcoin network.
On Monday, 25 May 2015, at 9:46 pm, Kevin Greene wrote:
> This is something you actually don't want. In order to make it as difficult
> as possible for an attacker to perform a sybil attack, you want to choose a
> set of peers that is as diverse, and unpredictable as possible.
>
>
> On Mon, May 25, 2015 at 9:37 PM, Matt Whitlock <bip at mattwhitlock.name>
> wrote:
>
> > This is very simple to do. Just ping the "all nodes" address (ff02::1) and
> > try connecting to TCP port 8333 of each node that responds. Shouldn't take
> > but more than a few milliseconds on any but the most densely populated LANs.
> >
> >
> > On Monday, 25 May 2015, at 11:06 pm, Jim Phillips wrote:
> > > Is there any work being done on using some kind of zero-conf service
> > > discovery protocol so that lightweight clients can find a full node on
> > the
> > > same LAN to peer with rather than having to tie up WAN bandwidth?
> > >
> > > I envision a future where lightweight devices within a home use SPV over
> > > WiFi to connect with a home server which in turn relays the transactions
> > > they create out to the larger and faster relays on the Internet.
> > >
> > > In a situation where there are hundreds or thousands of small SPV devices
> > > in a single home (if 21, Inc. is successful) monitoring the blockchain,
> > > this could result in lower traffic across the slow WAN connection. And
> > > yes, I realize it could potentially take a LOT of these devices before
> > the
> > > total bandwidth is greater than downloading a full copy of the
> > blockchain,
> > > but there's other reasons to host your own full node -- trust being one.
> > >
> > > --
> > > *James G. Phillips IV*
> > > <https://plus.google.com/u/0/113107039501292625391/posts>;
> > > <http://www.linkedin.com/in/ergophobe>;
> > >
> > > *"Don't bunt. Aim out of the ball park. Aim for the company of
> > immortals."
> > > -- David Ogilvy*
> > >
> > > *This message was created with 100% recycled electrons. Please think
> > twice
> > > before printing.*
> >
> >
> > ------------------------------------------------------------------------------
> > One dashboard for servers and applications across Physical-Virtual-Cloud
> > Widest out-of-the-box monitoring support with 50+ applications
> > Performance metrics, stats and reports that give you Actionable Insights
> > Deep dive visibility with transaction tracing using APM Insight.
> > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
> > _______________________________________________
> > Bitcoin-development mailing list
> > Bitcoin-development at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/bitcoin-development
> >
Matt Whitlock [ARCHIVE] /
npub17q…upwet
2023-06-07 15:35:35
in reply to nevent1q…ny5s
Author Public Key
npub17qxssk9sj2r7jswvh3y32e7vwz7mcckhz33gk9nurdmw0lhsfkgswupwetSeen on
wss://relay.nostr.bandPublished at
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"content": "📅 Original date posted:2015-05-26\n📝 Original message:Who would be performing a Sybil attack against themselves? We're talking about a LAN here. All the nodes would be under the control of the same entity. In that case, you actually want them all connecting solely to a central hub node on the LAN, and the hub node should connect to \"diverse and unpredictable\" other nodes on the Bitcoin network.\n\n\nOn Monday, 25 May 2015, at 9:46 pm, Kevin Greene wrote:\n\u003e This is something you actually don't want. In order to make it as difficult\n\u003e as possible for an attacker to perform a sybil attack, you want to choose a\n\u003e set of peers that is as diverse, and unpredictable as possible.\n\u003e \n\u003e \n\u003e On Mon, May 25, 2015 at 9:37 PM, Matt Whitlock \u003cbip at mattwhitlock.name\u003e\n\u003e wrote:\n\u003e \n\u003e \u003e This is very simple to do. Just ping the \"all nodes\" address (ff02::1) and\n\u003e \u003e try connecting to TCP port 8333 of each node that responds. Shouldn't take\n\u003e \u003e but more than a few milliseconds on any but the most densely populated LANs.\n\u003e \u003e\n\u003e \u003e\n\u003e \u003e On Monday, 25 May 2015, at 11:06 pm, Jim Phillips wrote:\n\u003e \u003e \u003e Is there any work being done on using some kind of zero-conf service\n\u003e \u003e \u003e discovery protocol so that lightweight clients can find a full node on\n\u003e \u003e the\n\u003e \u003e \u003e same LAN to peer with rather than having to tie up WAN bandwidth?\n\u003e \u003e \u003e\n\u003e \u003e \u003e I envision a future where lightweight devices within a home use SPV over\n\u003e \u003e \u003e WiFi to connect with a home server which in turn relays the transactions\n\u003e \u003e \u003e they create out to the larger and faster relays on the Internet.\n\u003e \u003e \u003e\n\u003e \u003e \u003e In a situation where there are hundreds or thousands of small SPV devices\n\u003e \u003e \u003e in a single home (if 21, Inc. is successful) monitoring the blockchain,\n\u003e \u003e \u003e this could result in lower traffic across the slow WAN connection. And\n\u003e \u003e \u003e yes, I realize it could potentially take a LOT of these devices before\n\u003e \u003e the\n\u003e \u003e \u003e total bandwidth is greater than downloading a full copy of the\n\u003e \u003e blockchain,\n\u003e \u003e \u003e but there's other reasons to host your own full node -- trust being one.\n\u003e \u003e \u003e\n\u003e \u003e \u003e --\n\u003e \u003e \u003e *James G. Phillips IV*\n\u003e \u003e \u003e \u003chttps://plus.google.com/u/0/113107039501292625391/posts\u003e\n\u003e \u003e \u003e \u003chttp://www.linkedin.com/in/ergophobe\u003e\n\u003e \u003e \u003e\n\u003e \u003e \u003e *\"Don't bunt. Aim out of the ball park. Aim for the company of\n\u003e \u003e immortals.\"\n\u003e \u003e \u003e -- David Ogilvy*\n\u003e \u003e \u003e\n\u003e \u003e \u003e *This message was created with 100% recycled electrons. Please think\n\u003e \u003e twice\n\u003e \u003e \u003e before printing.*\n\u003e \u003e\n\u003e \u003e\n\u003e \u003e ------------------------------------------------------------------------------\n\u003e \u003e One dashboard for servers and applications across Physical-Virtual-Cloud\n\u003e \u003e Widest out-of-the-box monitoring support with 50+ applications\n\u003e \u003e Performance metrics, stats and reports that give you Actionable Insights\n\u003e \u003e Deep dive visibility with transaction tracing using APM Insight.\n\u003e \u003e http://ad.doubleclick.net/ddm/clk/290420510;117567292;y\n\u003e \u003e _______________________________________________\n\u003e \u003e Bitcoin-development mailing list\n\u003e \u003e Bitcoin-development at lists.sourceforge.net\n\u003e \u003e https://lists.sourceforge.net/lists/listinfo/bitcoin-development\n\u003e \u003e",
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