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--- scan_nmap [2017/09/10 21:53] – Santi
+++ scan_nmap [2019/01/04 13:06] (current) – external edit 127.0.0.1
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 ===== How to scan computers/network with Nmap =====
+{{ wiki:nmap.png?150}}
 In this tutorial we are going to see different ways to discover computers in a network and how to scan their ports to get some extra information about them. To do that we will use [[http://www.nmap.org|Nmap]], a very powerful tool.
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 From now on we will have to choose a more specific tool depending of the service that we will want to test. Maybe, in this case, because we have found that the remote machine has a FTP service running we could try to discover some vulnerability to check that our system is completely protected.
+===== How to prevent this kind of attack =====
+Maybe scanning ports cannot be consider a kind of attack but sometimes it will be the very first step for preparing an inminent attack in the future. That's why we must protect our computers to not be scanned, and the best way to do that is **enabling our Firewall**. Notice that that simple action can protect your computer against more sophisticated attacks because if the attacker doesn't know nothign about your computer, maybe he never will attack.
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 (c) 2017 Hacking Tony