First of all , thank you for your answers! I saw that topic and I beleive it was for original Glest? Second of all , where can I find a tutorial to host my MegaGlest game then? {I have already seen the tutorial on the wiki , but it is not clear for me} I now see that my way is not the solution but using gameranger would not require modifying any part of the game... {I think} , just your permission xD But the point , that it is not usable on Linux platforms still stands.. and that it would destroy the playerbase.
Perhaps , the devs could integrate a bulit-in vpn client of their own , specialized for this game?
http://openvpn.net/ -here I found an open source vpn client