* [Bitcoin-development] DOS-Attacks on bitcoin-client?
@ 2013-04-07 14:43 Oliver Egginger
2013-04-07 15:22 ` Scott Howard
2013-04-08 5:42 ` Jeff Garzik
0 siblings, 2 replies; 4+ messages in thread
From: Oliver Egginger @ 2013-04-07 14:43 UTC (permalink / raw)
To: Bitcoin Development
Hello,
I'm using your bitcoin-qt client (version 0.8.1). Normally everything is
working pretty fine, but sometimes it seems that other nodes produce an
enormous amount of traffic. I have not had the time to investigate
thoroughly yet. I only have briefly viewed with tshark.
So far I have just restarted the client in the hope that it no longer
connects with the 'evil' node. This usually works quite well.
Is anything about DOS-Attacks known to you?
regards
Oliver
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bitcoin-development] DOS-Attacks on bitcoin-client?
2013-04-07 14:43 [Bitcoin-development] DOS-Attacks on bitcoin-client? Oliver Egginger
@ 2013-04-07 15:22 ` Scott Howard
2013-04-07 16:35 ` Oliver Egginger
2013-04-08 5:42 ` Jeff Garzik
1 sibling, 1 reply; 4+ messages in thread
From: Scott Howard @ 2013-04-07 15:22 UTC (permalink / raw)
Cc: Bitcoin Development
On Sun, Apr 7, 2013 at 10:43 AM, Oliver Egginger <bitcoin@olivere•de> wrote:
> Hello,
>
> I'm using your bitcoin-qt client (version 0.8.1). Normally everything is
> working pretty fine, but sometimes it seems that other nodes produce an
> enormous amount of traffic. I have not had the time to investigate
> thoroughly yet. I only have briefly viewed with tshark.
>
> So far I have just restarted the client in the hope that it no longer
> connects with the 'evil' node. This usually works quite well.
>
> Is anything about DOS-Attacks known to you?
Many new users have started using the reference client which downloads
the whole blockchain from peers. There currently isn't a throttling
mechanism [1] so it's possible to quickly eat up your bandwidth. You
can try QoS on your router or use the -nolisten command line flag. You
will still relay transactions, just not serve the whole blockchain.
[1] https://github.com/bitcoin/bitcoin/issues/273
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bitcoin-development] DOS-Attacks on bitcoin-client?
2013-04-07 15:22 ` Scott Howard
@ 2013-04-07 16:35 ` Oliver Egginger
0 siblings, 0 replies; 4+ messages in thread
From: Oliver Egginger @ 2013-04-07 16:35 UTC (permalink / raw)
To: Scott Howard; +Cc: Bitcoin Development
Am 07.04.2013 17:22, schrieb Scott Howard:
> Many new users have started using the reference client which downloads
> the whole blockchain from peers.
Yes I have made a clean start because of the the new database structure.
> There currently isn't a throttling
> mechanism [1] so it's possible to quickly eat up your bandwidth. You
> can try QoS on your router or use the -nolisten command line flag. You
> will still relay transactions, just not serve the whole blockchain.
I see. I successfully have downloaded the Blockchain again. Thus, it
should not occur again now. If it does, I'll be back again. :-)
Thank you for your quick help.
regards
Oliver
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bitcoin-development] DOS-Attacks on bitcoin-client?
2013-04-07 14:43 [Bitcoin-development] DOS-Attacks on bitcoin-client? Oliver Egginger
2013-04-07 15:22 ` Scott Howard
@ 2013-04-08 5:42 ` Jeff Garzik
1 sibling, 0 replies; 4+ messages in thread
From: Jeff Garzik @ 2013-04-08 5:42 UTC (permalink / raw)
To: Oliver Egginger; +Cc: Bitcoin Development
BTW, check out the blockchain torrent, as one way of offloading some
of the download bandwidth used from the P2P network:
Bitcoin blockchain data torrent
https://bitcointalk.org/index.php?topic=145386.0
--
Jeff Garzik
exMULTI, Inc.
jgarzik@exmulti•com
^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-04-07 14:43 [Bitcoin-development] DOS-Attacks on bitcoin-client? Oliver Egginger
2013-04-07 15:22 ` Scott Howard
2013-04-07 16:35 ` Oliver Egginger
2013-04-08 5:42 ` Jeff Garzik
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