Monday, 30 March 2009

GoGrid Denial of Service

Got this in my inbox this morning:

Hello Roger,

On Friday, March 27 at 11:10 AM PDT, and again today Monday, March 30 at 12:25 PM PDT, GoGrid suffered a series of large scale distributed denial of service (DDoS) attacks that affected the network connectivity of many GoGrid servers.

These network attacks were of a type that we had not seen before, and which our automated network attack prevention hardware was unfortunately unable to prevent.

We estimate that up to 25% of GoGrid customers had servers that were either unreachable or had degraded network performance and packet loss during significant parts of both of these attacks, and at times as much as half of you were affected more briefly. We know that many of you rely on GoGrid to run your critical Internet infrastructure, and apologize for the impacts to your business that these attacks may have caused.


The situation has now been stabilized as of 4 pm PDT, and the network performance of most GoGrid servers should be normal. If you were affected and opened a case during the attack, you should receive a more detailed RFO from our support staff or your Service Team. If you are still seeing any issues with your servers, please open a case at or call at the numbers below.


Status reports available here:

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