From: Rick Wesson <rick@support-intelligence•com>
To: Mike Hearn <mike@plan99•net>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] DNS seeds returning gone peers
Date: Wed, 3 Aug 2011 07:00:24 -0700 [thread overview]
Message-ID: <CAJ1JLtuRhqwcCWjv+H2XUjsX-Za9ZkSkOsH3t=JaUu1581RGUA@mail.gmail.com> (raw)
In-Reply-To: <CANEZrP1-BaNmKhSPXSe2sjH0-DPm62_=OQ_S6aCT3-nLdFLLGA@mail.gmail.com>
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Mike,
I think I can contribute to your DNS seeding project. Could you help define
long-lived peers?
-rick
On Wed, Aug 3, 2011 at 3:04 AM, Mike Hearn <mike@plan99•net> wrote:
> This is expected to happen from time to time of course as it's inherently
> racy, but there are a *lot* of bad nodes appearing in the DNS seeds.
>
> $ nmap -oG /tmp/x -p 8333 `dig +short bitseed.bitcoin.org.uk
> dnsseed.bluematt.me bitseed.xf2.org`
> ...
> Nmap done: 48 IP addresses (25 hosts up) scanned in 9.80 seconds
>
> $ grep -c 'closed' /tmp/x
> 6
>
> So of 48 IPs returned only 19 are actually usable. This is slowing down
> peer bringup for the Android apps, which don't currently save the addresses
> of last-used peers (yes, I know we should fix this).
>
> I was talking to a friend a few days ago about Bitcoin, he seemed
> interested. I'm hoping he might take on DNS seeding as a project. A custom
> DNS server that watches the network to find long-lived peers that run the
> latest version would be helpful for resolving this kind of thing.
>
>
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next prev parent reply other threads:[~2011-08-03 14:27 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-03 10:04 Mike Hearn
2011-08-03 11:38 ` Matt Corallo
2011-08-03 12:00 ` Mike Hearn
2011-08-03 12:15 ` Johannes Henninger
2011-08-03 12:17 ` Mike Hearn
2011-08-03 12:27 ` Caleb James DeLisle
2011-08-03 12:40 ` Mike Hearn
2011-08-03 14:00 ` Rick Wesson [this message]
2011-08-03 14:10 ` Mike Hearn
2011-08-03 14:18 ` Rick Wesson
2011-08-03 14:28 ` Douglas Huff
2011-08-03 14:39 ` Mike Hearn
2011-08-03 14:48 ` Gregory Maxwell
2011-08-03 15:32 ` Matt Corallo
2011-08-03 14:37 ` Christian Decker
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