Intrusion Detection Systems

3 important questions on Intrusion Detection Systems

What two types of intrusion detection systems exist?

  1. Network-based IDS.
  2. Host-based IDS.

What two strategies for the placement of IDSs were presented? What are the pros and cons?

  1. Inline placement - Allows to directly interfere with network traffic. Because single point of failure, upon failure of IDS the network is inavailable.
  2. Monitoring via port mirror - Is good practice to use this.

What two detection strategies were presented for IDSs?

  1. Signature based
  2. Anomaly-based

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