Re: [Xen-users] High Load in Dom0

[Rus Foster <twattycake@xxxxxxxxx>]

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
nothing

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

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