I have 36h now since I've installed on a fresh Debian 7.1 server. Not a single issue.
Now I'm trying to switch it to distro's Nginx which has more features and it's 100% stable.
After I've examined the Plesk installation I saw that nginx comes from your compiled version.
On Debian 7, there is version 1.2.x stable with additional modules to install separate. (most of this modules, like uploadprogress are useful for Drupal hosting and recommended).
Is there any...