Thursday, May 05, 2005

Mitigating a DOS attack

A few days ago, I had written about what a DOS attack is. DOS attacks are usually targetted towards ISPs or websites of large corporations. Home users might get affected by a DOS attack, such that if their ISP is attacked then they might face connectivity issues. As a home user, you dont have too many options. But as a sys-admin incharge of a large corporation's website or if you are working for an ISP, you might be wondering what your options are.

So what can be done when a DOS attack occurs? Can it be stopped or its effect mitigated? Well, lets look at a few options:
These are just the preliminary starting points. Preventing a DOS or a DDOS attack is a huge topic in itself. In a future post, I'll describe the various types of DOS attacks like smurf, fraggle etc.

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