HowTo: Your own VPN?! OpenVPN-Server for only 3€/year

OpenVPN is a open-source application that creates secure point-to-point or site-to-site connections using SSL/TLS for key exchange. It provides full encryption of both, data and control-channels (OpenSSL). Thankfully it is capable of traversing network address translators (NATs) and firewalls. Means we are able to set up a working VPN-Server behind them.

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