Unknown U.

asked • 05/20/19

Question about DDoS...


I am learning about DDoS attacks and all that kind of stuff, so I've started to gain more questions then answers.This is about UDP TCP layer.

  1. Why closed port cannot be attacked?
  2. Why filtered port is better then closed?
  3. Why is it better to have filtred ports?
  4. If the server usses 22005 port for connections, is there need to filter other ports or is it fine if they are not filtered?

1 Expert Answer


Dmitriy P. answered • 10/15/19

5 (2)

Experienced network engineer and cybersecurity instructor.

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