The topic of this thesis was SMS Authentication in Citrix Virtual Environment. The execution included planning, configuration and inauguration. The topic was provided by Meka Pro Oy in Autumn 2015.

First, this thesis will focus on the theoretical framework of the topics that were included in this thesis and, in the end, on practical advice for inauguration. The framework is based on e-books from the Internet and guides by manufacturers.

Work on this thesis began with a launch meeting, wherein the requisites of this work were chart-ed. After this, I began writing the theoretical framework for this thesis and read literature on the topic. The last thing was the practical part of this thesis, which included the inauguration of an SMS -passcode system in Meka Pro Oy.

As a result of this thesis, we created a functional authentication system that is easy to teach to end users and considerably improves the information security of the company.