block countries

With nginx it's possible to block country.
On debian install the package : libnginx-mod-http-geoip

Edit /etc/nginx/nginx.conf and

#add into http directive:

geoip_country /usr/share/GeoIP/GeoIP.dat;
map $geoip_country_code $allowed_country {
default no;
DE yes;
BE yes;

.....

}

Then, in the server directive of your website's config file, add:

   # COUNTRIES BANLIST:
   if ($allowed_country = no) {
       return 403;
   }

test to check that your config files are valid.

nginx -t

reload the service