Working nagios3 nginx virtual host file for Ubuntu 14.04.3

nagios.domain.com.conf

server {
	listen	 80;
	server_name	nagios.domain.com;

	access_log  /var/log/nginx/nagios.access.log;
	error_log   /var/log/nginx/nagios.error.log info;

	expires 31d;

	root /usr/share/nagios3/htdocs;	
	index index.php index.html;

	auth_basic "Nagios Restricted Access";
	auth_basic_user_file /etc/nagios3/htpasswd.users;
	
	location /stylesheets {
		alias /etc/nagios3/stylesheets;
	}

	location / {
		try_files $uri $uri/ index.php /nagios;
	}
 
	location /nagios {
		alias /usr/local/nagios/share;
	}
 
	location ~ ^/nagios/(.*\.php)$ {
		alias /usr/local/nagios/share/$1;
		include /etc/nginx/fastcgi_params;
		fastcgi_pass unix:/var/run/php5-fpm.sock;
	}
 
	location ~ \.cgi$ {

		root /usr/lib/cgi-bin/nagios3;

		rewrite ^/cgi-bin/nagios3/(.*)$ /$1;
		include /etc/nginx/fastcgi_params;
		fastcgi_param AUTH_USER $remote_user;
		fastcgi_param REMOTE_USER $remote_user;
		fastcgi_param SCRIPT_FILENAME /usr/lib/cgi-bin/nagios3$fastcgi_script_name;
		fastcgi_pass unix:/var/run/fcgiwrap.socket;
	}
 
	
	location ~ \.php$ {
		include /etc/nginx/fastcgi_params;
		fastcgi_pass unix:/var/run/php5-fpm.sock;
	}
}