Delivery-Date: Fri May 30 17:44:00 2003
Date: Fri, 30 May 2003 13:35:52 -0700
Message-Id: <200305302035.h4UKZqo32295@announce.speakeasy.net>
To: Jcl@cmu.edu
From: Speakeasy <support@speakeasy.net>
Subject: [ Speakeasy ] Notice: Network Outage in NYC - Recap

    
Dear Speakeasy Member,

We sincerely apologize for the network outages beginning 
Wednesday afternoon and continuing into Thursday morning.  
Included for your reference is further information on the nature 
of this outage and how it was resolved.

Wednesday afternoon, we received a complicated Distributed Denial 
of Service (DDOS) attack and immediately began working with our 
upstream providers to resolve it as soon as possible.  The cause 
for the attack was not apparent, but subsided after multiple 
filters were put into place.  After resolving this, it was 
necessary to go ahead with our planned outage during the 
Maintenance Window that night in order to complete our NYC POP 
Upgrade.

Thursday morning, we experienced a simpler series of two large 
DDOS attacks, one consisting of 600-800MB that we blocked by the 
filtering implemented last night and the other consisting of 
200-300MB attack on a specific customer's IP address, which we 
immediately blocked.  This final attack has been identified as 
the result of this specific customer's activities online and we 
are gathering information to file a complaint with the FBI 
against the attackers involved.

We are rigorously and actively investigating new methods and 
technology options that will assist us in resolving these types 
of attacks more quickly in the future.  

Again, we apologize for the inconvenience that these attacks may 
have caused you and appreciate your patience while we worked to 
resolve.

The Speakeasy Crew
800.556.5829
http://www.speakeasy.net/myspeak