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Scan Open Ports

Posted on Sunday March 13, 2016 by Eric Potvin

To scan ports, you need to use a tool called nmap. Nmap ("Network Mapper") is a free tool for network discovery and security auditing.

Install nmap

sudo apt-get install nmap

Scan for open ports

nmap -v -sT localhost

SYN scanning

sudo nmap -v -sS localhost