Another good option to run Drupal sites nowadays is Nginx. Nginx is a Proxy/Web Server not as complex as Apache and is well known for is security, responsiveness and speed when handling PHP apps together with PHP-FMP. On this this post I will introduce you on how to manually install and run Nginx and PHP-FPM so you can host any Drupal site with SSL support.
The suggested installation instructions by drupal.org: https://www.drupal.org/node/2310819
Perusio Nginx suggested Drupal Configuration https://github.com/perusio/drupal-with-nginx/tree/D7#installation…
On this tutorial I will show you how to configure Varnish as a proxy server so you can re route you requests to any Apache or Nginx Server.
Configuring Varnish on Ubuntu on distributed Servers is not a complex task, we just need to download some packages and then we will have to copy/paste the configurations below in order to start. Feel free to modify the provided configurations according to your needs. This post assumes there is another server Apache/Nginx listening on port 80 and running a Drupal site.
Ok, Let's begin.
Install Varnish 3.0.5 from Ubuntu 14.04 repositories:
$sudo apt-get install varnish
Configure varnish deamon:
$sudo nano /etc/default/varnish