Installation of Nxt on Ubuntu I'd like to install Nxt on Ubuntu (a private node). I am a beginner and have no clue about how to do that. Is there anyone out there that could give me some directions/advices ?

Any help would be wonderful. 

Thank you
Just download from https://nxt.org/download/ unzip, go to folder and ./run.sh
Then go to your browser open up nxt by going to http://127.0.0.1:7876/   

Hopefully this helps.