Protocol Analyzers

A protocol analyzer (also known as a packet sniffer, network analyzer, or network sniffer) is a piece of software or an integrated software/hardware system that can capture and decode network traffic. Protocol analyzers have been popular with system administrators and security professionals for decades because they are such versatile and useful tools for a network environment. From a security perspective, protocol analyzers can be used for a number of activities, such as the following:

  • Detecting intrusions or undesirable traffic (IDS/IPS must have some type of capture and decode ability to be able to look for suspicious/malicious traffic)
  • Capturing traffic during incident response or incident handling
  • Looking for evidence ...

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