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From: Laszlo Hanyecz <laszlo@heliacal.net>
In-Reply-To: <ll5ems$6pt$1@ger.gmane.org>
Date: Fri, 16 May 2014 16:46:54 +0000
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References: <ll29m5$r6c$1@ger.gmane.org> <ll5ems$6pt$1@ger.gmane.org>
To: Andreas Schildbach <andreas@schildbach.de>
Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] DNS seeds unstable
Precedence: list

It looks like it might be firewalled, probably just need to fix the ACL =
in EC2.

-Laszlo

On May 16, 2014, at 4:34 PM, Andreas Schildbach <andreas@schildbach.de> =
wrote:

> Apparently British Telecom also cannot speak to Peter Todd's server.
>=20
> That another very large ISP in Europe.
>=20
>=20
> On 05/15/2014 01:50 PM, Andreas Schildbach wrote:
>> I'm bringing this issue up again. The current Bitcoin DNS seed
>> infrastructure is unstable. I assume this is because of we're using a
>> custom DNS implementation which is not 100% compatible. There have =
been
>> bugs in the past, like a case sensitive match for the domain name.
>>=20
>> Current state (seeds taken from bitcoinj):
>>=20
>> mainnet:
>>=20
>> seed.bitcoin.sipa.be			OK
>> dnsseed.bluematt.me			OK
>> dnsseed.bitcoin.dashjr.org		SERVFAIL, tried multiple ISPs
>> seed.bitcoinstats.com			OK
>>=20
>> testnet:
>>=20
>> testnet-seed.bitcoin.petertodd.org	SERVFAIL, just from Telefonica
>> testnet-seed.bluematt.me		OK (but only returns one node)
>>=20
>> Note: Telefonica is one of Europe's largest ISPs.
>>=20
>> I would try to improve DNS myself, but I'm not capable of writing C. =
My
>> "fix" would be to reimplement everything in Java -- I doubt you guys
>> would be happy with that.
>>=20
>>=20
>> =
--------------------------------------------------------------------------=
----
>> "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
>> Simple to use. Nothing to install. Get started now for free."
>> http://p.sf.net/sfu/SauceLabs
>>=20
>=20
>=20
>=20
> =
--------------------------------------------------------------------------=
----
> "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
> Simple to use. Nothing to install. Get started now for free."
> http://p.sf.net/sfu/SauceLabs
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