Build a Raspberry Pi Scanner that Tracks the Devices Connected to Your Local Network

We’re going to make use of a Raspberry Pi to build a network scanner to keep track of the hosts connecting to our local network. It’s actually pretty easy to do. And as we’re going to make use of ARP scans to do it, which are moderately stealthy unless you heavily hammer the network, it would be easy to make something that is pretty much invisible to most people. If you did that, you’d end up with a Pi that could sit quietly in a corner and monitor your home or office wireless network, squirreling away information about what hosts are connecting to without anyone taking much notice of it at all. However, we’re not those sort of people. We’re more the glowing red 6-inch tall seven-segment display sort of people. So instead, our network scanner is going to be plenty visible.”


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