Nmap - Mind of it's own.

["Xia Shing Zee" <xiashing () gmail com>]

nmap -v -v -iR 100 -PN -p 21 --open

When using the above command, it appears that Nmap will start to show open
FTP ports (Port 21), however, when the scan is complete, it will show many
filtered ports that were specified not to be shown.

Is this a bug or is the command inputted wrongly? I sense Nmap has a mind of
it's own.

-Xia Shing Zee

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