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What is a land attack?

What is a land attack? How can I stop one?

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A land attack is a remote denial-of-service (DOS) attack caused by sending a packet to a machine with the source host/port the same as the destination host/port. This is a rather old attack and current patches should stop them for most systems. Please see the CERT advisory for more information on the attack, available patches and other solutions.
For more information on this topic, visit these other SearchSecurity.com resources:
  • Best Web Links: Common Vulnerabilities and Prevention Tips
  • White papers: Denial-of-service

  • This was first published in June 2003

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