June 2016
Intermediate to advanced
152 pages
3h 30m
English
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Detecting systems on your network with NMAP
If you have heard of nmap before, it was likely as a
hacker tool. These days it is most commonly used as a port scanner, but it actually started its life as a network-mapping tool for discovering hosts. In fact, nmap stands for Network Mapper. It can utilize ICMP, UDP, and TCP.
Let us look at how to utilize it to discover what systems exist on your network.
How to do it…
First, we need to make sure that we have nmap installed. Luckily, it is a common enough tool to be available in the package repository for your selected distribution, and it will be accessible either by running sudo apt-get install nmap or sudo yum install nmap.
Next, we will do a simple ICMP sweep of the network to see who responds:
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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