SedoCoUk
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DoS attack against Sedo's parking program
Hello from Sedo,
The cluster for serving the websites for the Sedo parking program has been attacked by a Bot network or a sophisticated attacker since this afternoon. We are experiencing a SYN flood attack with spoofed IP addresses as the source.
Before getting into details, we want to assure you that we will fully compensate you for the revenue loss that occurred because of the DoS attack.
The tech team is working together with third-party consultants who are experienced in dealing with DoS attacks to get this issue resolved. To give you an idea of the size of the attack: We would need about 200 additional servers to handle the SYN traffic coming in.
The immediate measures against such an attack are very limited. We do have two of the best routers available on the market in front of our network. These routers catch all DoS attacks which can be caught automatically.
We have tuned server parameters and identified certain "evil" subnets which are now filtered. As a result, the load on the system has started to decrease. We continue to filter specific nets and patterns until our system is operational again.
We apologize for the inconvenience. Let me assure you again that all loss in revenue will be compensated.
Sincerely,
the Sedo team
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08-21-2005 01:38 AM
