Excessive DNS Requests

Suresh Ramasubramanian suresh at outblaze.com
Thu Oct 14 01:38:28 UTC 2004

On Wed, 13 Oct 2004, Anderson, Ian wrote:

> Anyone else seeing excessive DNS requests hammering their local
> forwarders this evening.  We've just taken our residence network
> off-line owing to the level of port 53 traffic coming from it.  Can't
> see anything in the usual places regarding this....

Have you considered zombie / trojan machines being used as spam vectors?

For example, here's a presentation at SANOG earlier this year - 


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