Re: [Bitcoin-development] DNS seeds unstable

[Alex Kotenko <alexykot@gmail.com>]

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Hi guys


Just wanted to let you know that Andreas' testnet Bitcoin Wallet doesn't
work because of fail in the peer discovery, and this caused us problems as
we cannot properly demonstrate my XBTerminal POS on the Bitcoin Conference.

Right now I'm booting up an own full node that I will set as trusted peer
in the Wallet settings, hopefully this will work. However this DNS
discovery problem is really a problem, even for testnet. Btw, I had
problems firing up the full bitcoind node also, of the same reason -
discovery failed. I had to ask Andreas to paste me his node list to
manually seed the nodelist.

So I've set up and will run a well connected testnet node, as we need it
for the XBTerminal.
Please let me know if I can somehow help to fix the DNS discovery issue
also.


Best regards,
Alex Kotenko


2014-05-16 17:46 GMT+01:00 Laszlo Hanyecz <laszlo@heliacal.net>:

> 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.
> >
> > That another very large ISP in Europe.
> >
> >
> > 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.
> >>
> >> Current state (seeds taken from bitcoinj):
> >>
> >> mainnet:
> >>
> >> seed.bitcoin.sipa.be                 OK
> >> dnsseed.bluematt.me                  OK
> >> dnsseed.bitcoin.dashjr.org           SERVFAIL, tried multiple ISPs
> >> seed.bitcoinstats.com                        OK
> >>
> >> testnet:
> >>
> >> testnet-seed.bitcoin.petertodd.org   SERVFAIL, just from Telefonica
> >> testnet-seed.bluematt.me             OK (but only returns one node)
> >>
> >> Note: Telefonica is one of Europe's largest ISPs.
> >>
> >> 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.
> >>
> >>
> >>
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> >
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