nginx.conf

user rails;
worker_processes auto;
pid /run/nginx.pid;

events {
	worker_connections 768;
	# multi_accept on;
}

http {
        pagespeed on;

        # Needs to exist and be writable by nginx.  Use tmpfs for best performance.
        pagespeed FileCachePath /var/ngx_pagespeed_cache;

	##
	# Basic Settings
	##

	sendfile on;
	tcp_nopush on;
        ## See https://goo.gl/mPCyog
	tcp_nodelay on;
	keepalive_timeout 65;
	types_hash_max_size 2048;
	# server_tokens off;

	# server_names_hash_bucket_size 64;
	# server_name_in_redirect off;

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

	##
	# SSL Settings
	##

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
	ssl_prefer_server_ciphers on;

	##
	# Logging Settings
	##

        #log_format nginx 'request_time=$request_time '
        #                 'upstream_connect_time=$upstream_connect_time '
        #                 'upstream_header_time=$upstream_header_time '
        #                 'upstream_response_time=$upstream_response_time';
        #log_format nginx '$time_local	| $remote_addr 	| '
        #                 '$request	| status $status	| bytes $body_bytes_sent	| rtime $request_time	| '
        #                 'ucnct $upstream_connect_time	| uhdr $upstream_header_time	| uresp $upstream_response_time	| '
        #                 'agent $http_user_agent';

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

	##
	# Gzip Settings
	##

	gzip on;
	gzip_disable "msie6";

	# gzip_vary on;
	# gzip_proxied any;
	# gzip_comp_level 6;
	# gzip_buffers 16 8k;
	# gzip_http_version 1.1;
	# gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

	##
	# Virtual Host Configs
	##

	include /etc/nginx/conf.d/*.conf;
	include /etc/nginx/sites-enabled/*;
}


#mail {
#	# See sample authentication script at:
#	# http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
#	# auth_http localhost/auth.php;
#	# pop3_capabilities "TOP" "USER";
#	# imap_capabilities "IMAP4rev1" "UIDPLUS";
#
#	server {
#		listen     localhost:110;
#		protocol   pop3;
#		proxy      on;
#	}
#
#	server {
#		listen     localhost:143;
#		protocol   imap;
#		proxy      on;
#	}
#}