OpenVPN on a Raspberry Pi

Sorry if lately I'm publishing really few posts, but this year I've been quite busy planning my weddings, so I have almost no time for everything else...

Anyway in these days I created a simple VPN server on one of my Raspberry Pi (a model 2 B). This small project has been realized for the honeymoon. Let me explain why, before looking at the procedure.

Home automation server - Sphaera

When I showed you my RaPiRo some post ago I explained why I would not use it as a case for my home automation server.

Let's summarize just something...

First of all the power. 12 motors are quite "hungry" and this means that using batteries is not an option if you need to keep it active all the day. You need to power with a plug, so it's mobility would be greatly limited.

It's noisy. All that motors can be quite annoying.

It can detect movement, but only when it's not moving itself, so it can check just a small area at a time.

There are other cons, but these are enough to let me think about a different solution for my home automation server.

Yowsup server

This time I wish to share some thought with you about an evolution of my projects. No need to code something for now...

In all my previous posts about Youwsup and Whatsapp messaging I always assumed on thing: chatting involved just one Raspberry Pi.

Anyway I own more than one RPi. What if I wish to use Whatsapp with more than one device?

Checking devices connected to the LAN

One thing that could be useful is checking if a device is connected to your LAN at home.

This is a quite simple task and could be used for several goals, from sending you a Whatsapp greeting message when you arrive at home to inform you in case of undesired connection to your own wi-fi network.