nmap.org  has some info, but we also review sites with insight into scanning.    Nmap is short for Network Mapper.

Ethical hacking – Penetration Testing  By Bhargav Tandel

Nix Craft  also a good site about nmap insights  NixCraft is an online community of new and seasoned Linux / Unix sysadmins who want to make the most of sysadmin-hood.


I gave the Nixcraft link to the 30 Nmap  command examples, but the site has many other good info links and pages.


Nmap is used to check system operation, i.e. what is the status of a port when it is probed in a certain way.

ACK scanning and SYN scanning will give different responses, also a firewall will give a different response as well.

We standardize nmap scanning with our basic Alpha Scan service 

The Alpha scan is there to give a window in the Company website Internet profile.

All hackers white or black perform an initial scan, and is paramount before doing a penetration test.


Of course use Kali Linux – The pentesting platform of choice, and thus can be used to perform compliance fulfillment for PCI.

By zafirt