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عنوان فایل ترجمه فارسی: مقدمه ای بر امنیت شبکه
عنوان نسخه انگلیسی: Introduction to Network Security
مرتبط با رشته های : فناوری اطلاعات و کامپیوتر
تعداد صفحات مقاله فارسی: ۱۱ صفحه
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قسمتی از متن انگلیسی:
DoS (Denial-of-Service) attacks are probably the nastiest, and most difficult to address. These are the nastiest, because they’re very easy to launch, difficult (sometimes impossible) to track, and it isn’t easy to refuse the requests of the attacker, without also refusing legitimate requests for service. The premise of a DoS attack is simple: send more requests to the machine than it can handle. There are toolkits available in the underground community that make this a simple matter of running a program and telling it which host to blast with requests. The attacker’s program simply makes a connection on some service port, perhaps forging the packet’s header information that says where the packet came from, and then dropping the connection. If the host is able to answer 20 requests per second, and the attacker is sending 50 per second, obviously the host will be unable to service all of the attacker’s requests, much less any legitimate requests (hits on the web site running there, for example).
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