xamp Ubuntu Serv - NGinx Apache 2.0 - Plz The Correct way?

[arcanisgk]

Hello friends, I'm looking for this information.
I have a microsite to do surveys on public opinions and I thought that maybe get many request petitions, over 100,000, in this case I read that the best options before apache is nginx, I would like to know how to change the xampp installed to run with nginx. if there are any installation tutorial passing I appreciate me if I share.

if truth is a big question what would be the right path.
what would be the technologies that should be implemented in reality.

.Thank you.