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Old 22-04-2008, 06:15 PM   #18 (permalink)
For_England
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Quote:
Originally Posted by blueblood1920 View Post
Actually sorry to disapoint but it is an attack on the website, the attack is coming from the US using lots of fake IP's.
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What is a distributed denial of service attack?

How a "denial of service" attack works



In a typical connection, the user sends a message asking the server to authenticate it. The server returns the authentication approval to the user. The user acknowledges this approval and then is allowed onto the server.
In a denial of service attack, the user sends several authentication requests to the server, filling it up. All requests have false return addresses, so the server can't find the user when it tries to send the authentication approval. The server waits, sometimes more than a minute, before closing the connection. When it does close the connection, the attacker sends a new batch of forged requests, and the process begins again--tying up the service indefinitely.









How to block a "denial of service" attack



One of the more common methods of blocking a "denial of service" attack is to set up a filter, or "sniffer," on a network before a stream of information reaches a site's Web servers. The filter can look for attacks by noticing patterns or identifiers contained in the information. If a pattern comes in frequently, the filter can be instructed to block messages containing that pattern, protecting the Web servers from having their lines tied up.







END


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