From: Alex Kotenko <alexykot@gmail•com>
To: Andreas Schildbach <andreas@schildbach•de>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] DNS seeds unstable
Date: Wed, 21 May 2014 12:10:52 +0100 [thread overview]
Message-ID: <CALDj+BZ-F31aWURYX_SF+aYxfz2KxeynspLACzBxbmXnCUx4xw@mail.gmail.com> (raw)
In-Reply-To: <lli161$81k$1@ger.gmane.org>
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Misunderstanding. Both seeds are available on port 53 via BIND forwarding.
Just also each DNS seed is available separately on it's own port.
Best regards,
Alex Kotenko
2014-05-21 12:03 GMT+01:00 Andreas Schildbach <andreas@schildbach•de>:
> Great, thanks for this contribution!
>
> Do you plan to have your seeds reachable on port 53 eventually?
> Currently bitcoinj cannot deal with nonstandard ports I think.
>
>
> On 05/21/2014 11:23 AM, Alex Kotenko wrote:
> > okay, I've set it up with bind forwarding requests to two dnsseeds
> > running on separate ports. Though I see a problem with testnet DNS seed
> > itself. It runs, but somehow it only returns one IP address. Exactly
> > same DNS seeder looking for mainnet nodes is working fine.
> >
> > You can reach seeds through
> > mainnet seed:
> > dig @node.alexykot.me <http://node.alexykot.me> bitcoin-seed.alexykot.me
> > <http://bitcoin-seed.alexykot.me> A
> > or directly
> > dig -p 8353 @node.alexykot.me <http://node.alexykot.me>
> > bitcoin-seed.alexykot.me <http://bitcoin-seed.alexykot.me> A
> >
> > testnet seed
> > dig @node.alexykot.me <http://node.alexykot.me> testnet-seed.alexykot.me
> > <http://testnet-seed.alexykot.me> A
> > or directly
> > dig -p 18353 @node.alexykot.me <http://node.alexykot.me>
> > testnet-seed.alexykot.me <http://testnet-seed.alexykot.me> A
> >
> > So what can be the problem with testnet DNS seeder?
> >
> >
> > Best regards,
> > Alex Kotenko
> >
> >
> > 2014-05-20 1:50 GMT+01:00 Robert McKay <robert@mckay•com
> > <mailto:robert@mckay•com>>:
> >
> > On Tue, 20 May 2014 01:44:29 +0100, Robert McKay wrote:
> > > On Mon, 19 May 2014 19:49:52 -0400, Jeff Garzik wrote:
> > >> On Mon, May 19, 2014 at 4:36 PM, Robert McKay <robert@mckay•com
> > <mailto:robert@mckay•com>>
> > >> wrote:
> > >>> It should be possible to configure bind as a DNS forwarder.. this
> > >>> can
> > >>> be done in a zone context.. then you can forward the different
> > >>> zones
> > >>> to
> > >>> different dnsseed daemons running on different non-public IPs or
> > >>> two
> > >>> different ports on the same IP (or on one single non-public IP
> > >>> since
> > >>> there's really no reason to expose the dnsseed directly daemon at
> > >>> all).
> > >>
> > >> Quite the opposite. dnsseed data rotates through a lot of
> addresses
> > >> if available. Using the bind/zone-xfer system would result in
> fewer
> > >> total addresses going through to the clients, thanks to the
> addition
> > >> of caching levels that the bind/zone-xfer system brings.
> > >>
> > >> That said, if the choice is between no-service and bind, bind it
> is
> > >> ;p
> > >
> > > Setting it up as a zone forwarder causes each request to go through
> > > to
> > > the dnsseed backend for each request.
> >
> > This stackoverflow describes a similar situation;
> >
> > http://stackoverflow.com/questions/15338232/how-to-forward-a-subzone
> >
> > you can additionally specify the port to forward too;
> >
> > http://www.zytrax.com/books/dns/ch7/queries.html#forwarders
> >
> > it should be possible to forward to different ports on 127.0.0.1 for
> > each dnsseed instance.
> >
> > Rob
> >
> >
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> >
> >
> >
> >
> >
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> >
> >
> > _______________________________________________
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> > https://lists.sourceforge.net/lists/listinfo/bitcoin-development
> >
>
>
>
>
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> "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE
> Instantly run your Selenium tests across 300+ browser/OS combos.
> Get unparalleled scalability from the best Selenium testing platform
> available
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>
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next prev parent reply other threads:[~2014-05-21 11:11 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-15 11:50 Andreas Schildbach
2014-05-15 17:17 ` Drak
2014-05-15 17:41 ` Jeff Garzik
2014-05-15 17:48 ` Gregory Maxwell
2014-05-16 9:15 ` Andreas Schildbach
2014-05-16 14:09 ` Mike Hearn
2014-05-15 18:05 ` Luke Dashjr
2014-05-16 16:34 ` Andreas Schildbach
2014-05-16 16:46 ` Matt Whitlock
2014-05-16 16:46 ` Laszlo Hanyecz
2014-05-16 17:07 ` Alex Kotenko
2014-05-16 22:02 ` Jeff Garzik
2014-05-17 0:58 ` Alex Kotenko
2014-05-17 11:39 ` Andreas Schildbach
2014-05-17 12:02 ` Alex Kotenko
2014-05-17 12:39 ` Andreas Schildbach
2014-05-19 20:14 ` Alex Kotenko
2014-05-19 20:22 ` Michael Wozniak
2014-05-19 20:38 ` Alex Kotenko
2014-05-19 20:36 ` Robert McKay
2014-05-19 23:49 ` Jeff Garzik
2014-05-20 0:44 ` Robert McKay
2014-05-20 0:50 ` Robert McKay
2014-05-21 9:23 ` Alex Kotenko
2014-05-21 11:03 ` Andreas Schildbach
2014-05-21 11:10 ` Alex Kotenko [this message]
2014-05-21 11:26 ` Andreas Schildbach
[not found] ` <537DBC3C.4090907@schildbach.de>
2014-06-11 13:57 ` Alex Kotenko
2014-06-11 14:24 ` Andreas Schildbach
2014-05-20 0:45 ` Michael Wozniak
2014-05-16 17:17 ` Rob Golding
2014-05-16 17:34 ` Nick Simpson
2014-05-16 21:46 ` Luke Dashjr
2014-05-16 18:53 ` Matt Corallo
2014-05-16 19:43 ` Andreas Schildbach
[not found] ` <8ADB6ABE-371C-4F4A-A003-F6751B01A12F@heliacal.net>
[not found] ` <53766148.1000708@bluematt.me>
2014-05-17 1:06 ` Matt Corallo
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