Gloubu

Hi everyone, I am in the project to build a small "Two" server on an Odroid N2 +, I am following the tutorial explaining the installation on Linux (link here) but I stop concerning the data recovery of Launcher 3.3.5a ( that I was able to download for download here). The topic explaining how to get his information seems unavailable, suddenly, I find myself in a lot of trouble to finish my project; does anyone have any suggestions to help me ? Second question, I downloaded out of curiosity the file "MangosTwoServer_x64_release.zip" but I did not understand exactly what it could serve me, any idea ? Thank you in advance for your help !