nginx.conf

user postfixadmin;
worker_processes auto;
pid /var/run/nginx.pid;
daemon off;

events {
  worker_connections 1024;
  use epoll;
}

http {

  include /etc/nginx/mime.types;
  default_type application/octet-stream;

  access_log /var/log/nginx/access.log combined;
  error_log /var/log/nginx/error.log error;

  sendfile on;
  keepalive_timeout 15;
  keepalive_disable msie6;
  keepalive_requests 100;
  tcp_nopush on;
  tcp_nodelay off;
  server_tokens off;

  gzip on;
  gzip_comp_level 5;
  gzip_min_length 512;
  gzip_buffers 4 8k;
  gzip_proxied any;
  gzip_vary on;
  gzip_disable "msie6";
  gzip_types
    text/css
    text/javascript
    text/xml
    text/plain
    text/x-component
    application/javascript
    application/x-javascript
    application/json
    application/xml
    application/rss+xml
    application/vnd.ms-fontobject
    font/truetype
    font/opentype
    image/svg+xml;

  server {
    listen 80;
    root /postfixadmin/public;
    index index.php;
    charset utf-8;

    location / {
      try_files $uri $uri/ index.php;
    }

    location ~* \.php$ {
      try_files $uri =404;
      fastcgi_index index.php;
      fastcgi_pass unix:/var/run/php-fpm.sock;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
      include /etc/nginx/fastcgi_params;
    }
  }

}