找不到php文件的NGINX文件

我有以下设置

Nginx作为一个web服务器。将请求传递给作为ruby on rails服务器运行的unicorn。我现在想在mysite.com/blog上安装wordpress。因此，我安装并配置了php和fastcgi。nginx配置如下：

upstream unicorn_mysite {
  server unix:/tmp/unicorn.mysite.sock fail_timeout=0;
}

server {
 listen 80;
 server_name mysite.com;
 return 301 https://www.$server_name$request_uri;
}

server {
  listen 443 ssl;
  ssl_certificate /opt/certs/thinbundle.crt;
  ssl_certificate_key /opt/certs/mysite.key;
  server_name mysite.com;

  root /opt/www/mysite/current/public;

  location /blog {
           index index.php;

           if (!-e $request_filename) {
           rewrite  ^(.*)$  /blog/index.php?q=$1  last;
                                      }

                location ~ .php(?|$) {
                   include /etc/nginx/fastcgi_params;
                   fastcgi_index index.php;
                   fastcgi_param SCRIPT_FILENAME /opt/www/mysite_wordpress$fastcgi_script_name;
                   fastcgi_pass unix:/var/run/php5-fpm.sock;
                }
  }


  location ~ ^/assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @unicorn;
  location @unicorn {
    proxy_set_header Host $http_host;  
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_redirect off;
    proxy_pass http://unicorn_mysite;
    proxy_set_header X-Forwarded-Proto $scheme;
    add_header Front-End-Htps on;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
}

而/etc/nginx/fastcgi_参数中的fastcgi_参数文件包含：

fastcgi_param  QUERY_STRING       $query_string;
fastcgi_param  REQUEST_METHOD     $request_method;
fastcgi_param  CONTENT_TYPE       $content_type;
fastcgi_param  CONTENT_LENGTH     $content_length;

fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
fastcgi_param  REQUEST_URI        $request_uri;
fastcgi_param  DOCUMENT_URI       $document_uri;
fastcgi_param  DOCUMENT_ROOT      $document_root;
fastcgi_param  SERVER_PROTOCOL    $server_protocol;
fastcgi_param  REQUEST_SCHEME     $scheme;
fastcgi_param  HTTPS              $https if_not_empty;

fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
fastcgi_param  SERVER_SOFTWARE    nginx/$nginx_version;

fastcgi_param  REMOTE_ADDR        $remote_addr;
fastcgi_param  REMOTE_PORT        $remote_port;
fastcgi_param  SERVER_ADDR        $server_addr;
fastcgi_param  SERVER_PORT        $server_port;
fastcgi_param  SERVER_NAME        $server_name;

# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param  REDIRECT_STATUS    200;

当我访问mysite.com/blog时，我得到以下信息：

当我查看nginx日志时，我看到：

2016/03/15 11:26:35 [error] 23109#23109: *29 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 185.14.209.183, server: mysite.com, request: "GET /blog HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.mysite.com"
2016/03/15 11:28:36 [error] 23109#23109: *35 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 185.14.209.183, server: mysite.com, request: "GET /blog HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.mysite.com"
2016/03/15 11:32:12 [error] 23109#23109: *38 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 185.14.209.183, server: mysite.com, request: "GET /blog HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.mysite.com"
2016/03/15 11:36:41 [error] 23109#23109: *45 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 185.14.209.183, server: mysite.com, request: "GET /blog HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.mysite.com"

---

有人能帮我修复这个找不到的文件吗。找不到哪个文件？它在哪里寻找它——也就是说，为什么它找不到它！这些错误都不能帮助我确定问题的原因

原来答案是因为：

基本上，在我的nginx配置文件中，我指向的是/etc/nginx/fastcgi_参数，而不是正确的文件/etc/nginx/fastcgi.conf。这两个文件都存在于我的nginx安装中，因此我们不容易找到或使用fastcgi.conf