Denial of Service attacks : Summary

Summary

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  Denial of Service is a very commonly used attack methodology.
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  Distributed Denial Of Service using a multiplicity of Zombie machines is an often seen attack methodology.
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  There are various tools available for attackers to perpetrate DOS attacks
  
   
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  Protection against DOS is difficult due to the very nature of the attacks.
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  Different scanning tools are available to aid detection and plugging of vulnerabilities leading to DOS