nginx.conf

user                  web;
worker_processes      8;  # 1 per cpu


worker_rlimit_nofile  1024; #20000; 15/09/2015

error_log             /home/web/log/nginx/_nginx/sys_error.log debug;
#pid                  /var/run/nginx.pid;

#google_perftools_profiles  /tmp/google_perftools/;

events
{
  worker_connections  15000; #4096; #15000; 15/09/2015
  multi_accept on;
  use kqueue;    #solo su FreeBSD e Linux 2.6
}

http
{
# include  /home/serverweb/etc/nginx/cloudflare-ip.conf;
# include  /home/serverweb/etc/nginx/incapsula-ip.conf;
  include  /home/serverweb/etc/nginx/mime.types;

# log_format main  '$remote_addr - $remote_user [$time_local] "$request" '
#                  '$status $body_bytes_sent "$http_referer" '
#                  '"$http_user_agent" "$http_x_forwarded_for"';

log_format rt_cache '$remote_addr - $upstream_cache_status [$time_local]  '
                    '"$request" $status $body_bytes_sent '
                    '"$http_referer" "$http_user_agent"';

# access_log  /home/web/log/nginx/_nginx/access.log;    # Log accessi al sito di default
  access_log  off;
  error_log   /home/web/log/nginx/_nginx/error.log warn;  # Log errori al sito di default

#fastcgi_cache_path /var/run/nginx-cache levels=1:2 keys_zone=cache_zone:100m inactive=60m;
#fastcgi_cache_key  "$scheme$request_method$host$request_uri";
#fastcgi_cache_use_stale error timeout invalid_header http_500;
#fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
#add_header rt-Fastcgi-Cache $upstream_cache_status;

#add_header Content-Security-Policy "default-src 'self' https://*.google-analytics.com https://*.googleapis.com https://*.gstatic.com https://*.gravatar.com https://*.w.org; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://ssl.google-analytics.com https://connect.facebook.net; img-src 'self' https://ssl.google-analytics.com https://s-static.ak.facebook.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://themes.googleusercontent.com; frame-src https:// https://www.facebook.com https://s-static.ak.facebook.com; object-src 'none'";
#  add_header X-Xss-Protection "1; mode=block" always;
#  add_header X-Frame-Options "SAMEORIGIN" always;
#  add_header X-Content-Type-Options "nosniff" always;

  client_max_body_size    50M;  #20M; #15/09/2015
  client_body_buffer_size 1m;   #20M; #15/09/2015
  client_body_timeout     15;         #15/09/2015
  client_header_timeout   15;         #15/09/2015
  keepalive_timeout       2 2;         #15/09/2015
  send_timeout            15;         #15/09/2015
  sendfile                on;
  tcp_nopush              on;
  tcp_nodelay             on;

  gzip on;
  gzip_vary on;
  gzip_proxied any;
  gzip_comp_level 6;
  gzip_min_length 1100;
  gzip_buffers 16 8k;
  gzip_http_version 1.1;
  gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
  gzip_disable "msie6";

#  gzip_min_length 1024;
#  gzip_buffers    4 8k;
#  gzip_disable    "MSIE [1-6]\.(?!.*SV1)";

  open_file_cache          max=2000 inactive=20s;
  open_file_cache_valid    60s;
  open_file_cache_min_uses 5;
  open_file_cache_errors   off;

  server_tokens    off; # Non mostrare la versione di Nginx

  server_names_hash_bucket_size    100;         #15/09/2015

  charset          utf-8;
  ssi              on;
  ssi_value_length 1024;

  upstream backend {
    server unix:/tmp/php-fpm.php0.sock;
    server unix:/tmp/php-fpm.php1.sock;
    server unix:/tmp/php-fpm.php2.sock;
    server unix:/tmp/php-fpm.php3.sock;
    server unix:/tmp/php-fpm.php4.sock;
    server unix:/tmp/php-fpm.php5.sock;
    server unix:/tmp/php-fpm.php6.sock;
    server unix:/tmp/php-fpm.php7.sock;
  }

#  include  /home/serverweb/etc/nginx/_conf/manutenzione.conf;
  include  /home/web/conf_nginx/*.conf;
}