8kun.net will have lots of security vulnerabilities running "Nginx Nginx 1.10.1" It's the bottom of the barrel garden variety software. 



cd /path/to/webroot to change your directory to the webroot

ls -la will print out the info you need

Depending if you have NGINX running as www-data or nginx as the user:group you may need to update

chown -R www-data:www-data /path/to./webroot