how to configure nginx with running apache ?

[mex]

> Hence I have to place nginx before apache without disturbing the
> setup.
> 

works seemlessly  and speeds up your apache, when using proxy_cache,
assuming your
apache listens on 8080


server {
  listen 80;
  server_name  myhost;
  location / {
    root /path/to/myapp/public;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Forwarded-Server $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
    proxy_pass http://apache:8080;
  }
}

from this basic snippet you can go on and test different setups
with additional nginx-virtualhosts before making changes work in your
prod-environment


server {
  # this is for testing new setups
  listen 81;
  server_name  myhost;
  location / {
    root /path/to/myapp/public;
    proxy_cache cache;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Forwarded-Server $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
    proxy_pass http://apache:8080;
  }
}

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,249356,249364#msg-249364