awstats + nginx + geoip : https://wiki.matteobasso.com/Awstats_%2B_nginx_:_installation_procedure

awstats-nginx-vhost.conf

server {
    	listen 80;
	server_name awstat.mysite.com;
        root /var/www/stat;
	
	error_log /var/log/nginx/awstat.mysite.com.error;
	access_log /var/log/nginx/awstat.mysite.com.access;
	log_not_found off;
	server_tokens off;
	error_page 401 403 404 /404.html;

    	location ^~ /icon {
        	alias /usr/local/awstats/wwwroot/icon/;
    	}
	location ^~ /css/ {
		alias /usr/local/awstats/wwwroot/css/;
	}	
      
       # beautifying the url
    	location ~ ^/([a-z0-9-_\.]+)$ {
        	return 301 $scheme://awstats.mysite.org/cgi-bin/awstats.pl?config=$1;
    	}	

	location ~ ^/cgi-bin/(awredir|awstats)\.pl {
		gzip off;
		fastcgi_pass unix:/run/php/php7.0-fpm.sock;
		fastcgi_param SCRIPT_FILENAME  /etc/nginx/cgi-bin.php;
		fastcgi_param X_SCRIPT_FILENAME /usr/local/awstats/wwwroot$fastcgi_script_name;
		fastcgi_param X_SCRIPT_NAME $fastcgi_script_name;
		include fastcgi_params;
	}

}

cgi-php.php

<?php
$descriptorspec = array(
   0 => array("pipe", "r"),  // stdin is a pipe that the child will read from
   1 => array("pipe", "w"),  // stdout is a pipe that the child will write to
   2 => array("pipe", "w")   // stderr is a file to write to
);
$newenv = $_SERVER;
$newenv["SCRIPT_FILENAME"] = $_SERVER["X_SCRIPT_FILENAME"];
$newenv["SCRIPT_NAME"] = $_SERVER["X_SCRIPT_NAME"];
if (is_executable($_SERVER["X_SCRIPT_FILENAME"])) {
   $process = proc_open($_SERVER["X_SCRIPT_FILENAME"], $descriptorspec, $pipes, NULL, $newenv);
   if (is_resource($process)) {
       fclose($pipes[0]);
       $head = fgets($pipes[1]);
       while (strcmp($head, "\n")) {
           header($head);
           $head = fgets($pipes[1]);
       }
       fpassthru($pipes[1]);
       fclose($pipes[1]);
       fclose($pipes[2]);
       $return_value = proc_close($process);
   } else {
       header("Status: 500 Internal Server Error");
       echo("Internal Server Error");
   }
} else {
   header("Status: 404 Page Not Found");
   echo("Page Not Found");
}
?>