The VPN (Virtual Private Network) server provides the network technology that will allow us to extend the reach capabilities of our local network over the Internet, a great example of this would be the possibility for two branches to communicate using the internet as the sole means.
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In this tutorial, I will be going through the steps on how to setup a Raspberry Pi VPN server using the OpenVPN software. I will also go into setting up various things you must do to ensure that your connection is as secure as possible by setting up encryption keys.
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From today, the Federal Government’s Metadata Retention Scheme becomes compulsory for telcos and internet service providers in Australia. This means your metadata – including text messages, location information and internet connection details – will be stored for two years and available to Government agencies to access on request without a warrant.
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If you’ve been thinking about trying out Tor to anonymise all your web browsing, you could just download a browser and give that a spin, but it’s much more fun to make your own highly portable proxy that you can easily connect to on a whim. Enter the Raspberry Pi.
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Soon every mistake you’ve ever made online will not only be available to your internet service provider (ISP) — it will be available to any corporation or foreign government who wants to see those mistakes.
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Do you use a VPN to connect to Internet and increase your privacy? If you are one of the many you would be sure that the VPN you are paying is really working properly.
You can always use, via browser, one of those dedicated websites that check your Ip and, in some cases, test the real effectiveness of VPN and/or use Terminal.
But, for my experience, if you prefer to test your public IP without using the Terminal, the best tutorial for this specific task has been published by http://www.tecadmin.net.
Get Public IP using Linux Terminal
Recommended!… if you are looking for an extra test that you can manage directly from Terminal.
In my experience Firestarter is a effective firewall and, on Linux, it starts automatically every time we boot up Ubuntu. But, when I decided to use a VPN tunnel through openvpn, I had some connection problems. In fact I was able to initialize my VPN services but, after a while, all the internet connections were mysteriously shut down.
The “problem” was Firestarter which cut off the connection as forbidden considering my inbound/outbound Policy.
To solve this matter you have to open a tunnel on Firestarter to allow VPN working:
1- open the configuration file my VPN provider gives to its users (generally its a text file containing all the configuration info used, in my case, by openvpn) and I searched for the IP address of the default starting connection used to authenticate the VPN services (e.g. 177.458.563.25). Save somewhere or memorize this VPN IP address.
2- open a Terminal and type:
sudo nautilus
3- using nautilus go to File System (it’s before home folder) and open etc–>firestarter and open the file user-pre using Gedit (or your preferred text editor)
4- the user-pre file is usually empty so don’t panic and write these lines into it:
iptables -A INPUT -j ACCEPT -s xxx.xxx.xxx.xxx -p esp iptables -A INPUT -j ACCEPT -s xxx.xxx.xxx.xxx -p udp -m multiport -sports isakmp,10000 iptables -A INPUT -j ACCEPT -i tun+ iptables -A OUTPUT -j ACCEPT -d xxx.xxx.xxx.xxx -p esp iptables -A OUTPUT -j ACCEPT -d xxx.xxx.xxx.xxx -p udp -m multiport -dports isakmp,10000 iptables -A OUTPUT -j ACCEPT -o tun+
Now you have to substitute the xxx.xxx.xxx.xxx with the VPN IP address you have found at step 1 (in my example was 177.458.563.25).
5- Save the user-pre file and close Gedit and Nautilus
6- open a new Terminal and restart Firestarter typing:
sudo /etc/init.d/firestarter restart
That’all! Now your VPN works on your Linux computer and Firestarter has accepted a new Routed IP Tunnel into its allowed policies configuration. 
I strongly believe that all you know OpenDNS yet. But for the few who still do not know this powerful free online tool we have posted a brief review in our Freeware Page. OpenDNS is very easy to configure and could be very useful to bypass all the restrictions that some ISP apply in certain countries. In Ubuntu 8.04, for example you have just to substitute your ISP default DNS with OpenDNS servers (208.67.222.222 and 208.67.220.220) in System – Administration – Network or to read the instruction contained on the proper OpenDNS page if you prefer to use the Terminal. For Windows and Apple users, we recommend to follow the official guide for XP, Vista and OSX. Moreover, if you decide to open a free account with OpenDNS, you will able to deeply examine or better manage all your network web traffic in just few clicks. Recommended!
When I read news and reports about modern spyware I am a little bit discouraged about my privacy. But I also think that something can always be done to improve privacy levels.
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