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Date: Sun, 07 Apr 2013 16:43:30 +0200
From: Oliver Egginger <bitcoin@olivere.de>
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Subject: [Bitcoin-development] DOS-Attacks on bitcoin-client?
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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