You are attempting to run an Nmap port scan on a web server. Which of the following commands would result in a scan of common ports with the least amount of noise in order to evade IDS?
C is the correct, uses the -T0 switch to slow down the scan.
A and D are kind of noisy because of the -A switch.
B is also fast and visible - because of the -T5
Optimize Timing Parameters
To control the scan activity, Nmap provides the -T option for scanning ranging from high-level to low-level timing aggressiveness. This can be extremely useful for scanning highly filtered networks.
p.332/316
All the options are noisy and can get you detected, but -T0 is very slow and packets are sent at a very slow rate, packets per minute and not several per second. It is the least worst answer.
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