Download and install the server for Unix systems.
A. Open terminal and execute:
cd SERVER-DIR
java -jar "Remote PC Server.jar"
If you want to use power interface, you will have to add root privileges:
cd SERVER-DIR
sudo java -jar "Remote PC Server.jar"
Power control is based on the linux commands shutdown, pmi action suspend which requires super-user privileges.
B. Open JAR from GUI. The jar file has to be associated with Sun or OpenJDK Java.
To write special characters (!@#$%^&, etc.) it's desirable to set Unicode Hex Input.