I was recently allocated a virtuoal server with apache installed. I tried to inspect the installation of apache and see if some back-end processes are running, apache2 come into my eyes.
Since I know what apache is, what is this apache2 is???
According to this article, apache2 turns out to be the second generation of apache http server...
原文：http://www.cnblogs.com/RuiYan/p/4093971.html