How to scan open ports using Nmap ?

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Nmap is probably the most popular scanner used by hackers and system administrators, it can scan and detect open ports and system versions, it is very easy to use. I’m using Nmap with ZenMap Gui Addon, nmap is available to download from – Nmap Download .

Nmap bundle contains included Zenmap GUI

Let’s scan Facebook Server IPs for open ports

Facebook IP :
157.240.20.35

just put IP on this text box

and select profile scan

profiles / nmap

I will choose Intense scan

and I got 3 open ports 🙂

Nmap is really, really powerfull tools, it has much more options. I just showed you only the basics options, you need to test more this tool which is easy to test with this free GUI addon.

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