What is “synscan” Package?

Asynchronous half-open TCP portscanner
For more details: http://www.digit-labs.org/files/tools/synscan/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install synscan.

  brew install synscan

Now, use synscan!