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Re: [Xen-users] High Load in Dom0

  • To: Josef Liška <jl@xxxxxx>
  • From: Rus Foster <twattycake@xxxxxxxxx>
  • Date: Wed, 10 Nov 2010 13:32:43 +0000
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 10 Nov 2010 05:33:41 -0800
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

2010/11/10 Josef LiÅka <jl@xxxxxx>:
> Hi,
> I'd suggest inspecting netflows. We had similar problem, which was caused by
> several virtual servers hacked (customer created accont test with password
> test) and used for DoS attacks to china with small udp packets.
> Packet rate caused by single hacked virtual was more than 100k/s

Thanks. Tried that but still seeing it (updated to use our interface
names). We are seeing about 190 kbits/s to the server so virtually

Using stock centos 5.x kernel but going to try downgrading incase its
something silly like a 3ware driver issue

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