I was tasked with running a monthly test to scan for open external ports against our external IPs per recommendation from a recent audit at my place of employment. I suggested using Nmap to complete this task and I am just hoping you can provide feedback on my commands to ensure I am getting what is needed.
Command = Nmap –FPn XXX.XXX.XXX.XXX-XXX > “%UserProfile%\Desktop\PortScan_YYYYMMDD.txt”
With the command, I sometimes get back “All 100 scanned ports on XXX.XXX.XXX.XXX () are filtered”. From my understanding, this is a common response if the scan is unable to complete or when scanning UDP?
Thank you in advance for your help/feedback.