title: Nginx 404 not found in subdir
body: <p>Okay, i setup a debian install with <strong>ispconfig3</strong> ,<strong>php5-fpm</strong> and <strong>nginx</strong>, the main site, drupal is working fine, even perfect. But i also have a <strong>modded</strong> phpbb3 board, in a <strong>subdir</strong>, named '<strong>forum</strong>'.</p>
  
  <p>Now for some reason i get the following error from nginx when accesing the dir:</p>
  
  <p><strong>'ERROR 500 - Internal Server Error!'</strong></p>
  
  <p>This is the content of the nginx directiv field(for vhost):</p>
  
  <pre><code># search for already compressed files
    gzip_static on;
    gzip on;
  
    # some images have no mime type
    default_type image/jpeg;
  
    # 404 generated from php can be rather slow. Uncomment with care
    error_page 404 /index.php;
  
    # disallow access to version control directory, but return 404, not to disclose information
    location /.git {
      return 404;
    }
  
    # robots.txt is important for search engines
    location /robots.txt {
      access_log off;
    }
  
    # This is mostly based on Drupal's stock .htaccess
    location ~* ^.+(\.(txt|engine|inc|info|install|module|profile|po|sh|.*sql|theme|tpl(\.php)?|xtmpl)|code-style\.pl|/Entries.*|/Repository|/Root|/Tag|/Template)$ {
      return 404;
    }
  
    # serve imagecache files directly or redirect to drupal if they do not exist
    location ~* imagecache {
      access_log off;
      expires 30d;
      try_files $uri @drupal;
    }
  
    # Drupal 7 image stylef
    location ~* image/generate {
      access_log off;
      expires 30d;
      try_files $uri @drupal;
    }
  
    # serve static files directly
    location ~* ^.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml|swf|flv)$ {
      access_log off;
      log_not_found off;
      expires 30d;
    }
  
  location @rewrite {
        # Some modules enforce no slash (/) at the end of the URL
        # Else this rewrite block wouldn't be needed (GlobalRedirect)
         rewrite ^/(.*)$ /index.php?q=$1;
  break;
      }
  
    # This rewrites pages to be sent to PHP processing
    location @drupal {
  rewrite  ^/(.*)$  /index.php?q=$1  last;
  
  }
  
  location / {
      try_files $uri @cache;
    }
  
    # This will try to see if we have a boost file in place. no harm done if this is not used
    location @cache {
      # queries, drupal cookies, or not GET methods, all require PHP processing.
      if ($query_string ~ ".+") {
        return 405;
      }
      if ($http_cookie ~ "DRUPAL_UID" ) {
        return 405;
      }
      if ($request_method !~ ^(GET|HEAD)$ ) {
        return 405;
      }
      error_page 405 = @drupal;
  
      # Drupal uses 1978 - I am 4 years older than Dries :)
      add_header Expires "Tue, 22 Sep 1974 08:00:00 GMT";
      add_header Cache-Control "must-revalidate, post-check=0, pre-check=0";
      try_files /cache/normal/$host/${uri}_.html /cache/mobile/$host/${uri}_.html /cache/perm/$host/${uri}_.css /cache/perm/$host/${uri}_.js /cache/$host/0$uri.html /cache/$host/0${uri}/index.html @drupal;
    }
  
  
  location /phpmyadmin {
                 root /usr/share/;
                 index index.php index.html index.htm;
                 location ~ ^/phpmyadmin/(.+\.php)$ {
                         try_files $uri =404;
                         root /usr/share/;
                         fastcgi_pass 127.0.0.1:9000;
                         fastcgi_index index.php;
                         fastcgi_param SCRIPT_FILENAME $request_filename;
                         include /etc/nginx/fastcgi_params;
                         fastcgi_param PATH_INFO $fastcgi_script_name;
                         fastcgi_buffer_size 128k;
                         fastcgi_buffers 256 4k;
                         fastcgi_busy_buffers_size 256k;
                         fastcgi_temp_file_write_size 256k;
                         fastcgi_intercept_errors on;
                 }
                 location ~* ^/phpmyadmin/(.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml|txt))$ {
                         root /usr/share/;
                 }
          }
          location /phpMyAdmin {
                 rewrite ^/* /phpmyadmin last;
          }
  
  location /forum {
                 root /var/www/ashladan.net/web;
                 index index.php index.html index.htm;
                 location ~ ^/forum/(.+\.php)$ {
                         try_files $uri =404;
                         root /var/www/ashladan.net/web;
                         fastcgi_pass 127.0.0.1:9000;
                         fastcgi_index index.php;
                         fastcgi_param SCRIPT_FILENAME $request_filename;
                         include /etc/nginx/fastcgi_params;
                         fastcgi_param PATH_INFO $fastcgi_script_name;
                         fastcgi_buffer_size 128k;
                         fastcgi_buffers 256 4k;
                         fastcgi_busy_buffers_size 256k;
                         fastcgi_temp_file_write_size 256k;
                         fastcgi_intercept_errors on;
                 }
                 location ~* ^/forum/(.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml|txt))$ {
                         root /var/www/ashladan.net/web;
                 }
          }
  </code></pre>