How do I configure JonDo and what other similar software can you recommend?
In order to configure JonDo software you can follow the steps provided by JonDos GmbH web page. Also for more information you can check the tutorials provided by its developer.
OpenVPN, CyberGhost VPN, Spotflux or PureVPN are just a part of the applications similar to JonDo. All of them are free of charge and easy to use.