Update theme to Lynx

content/posts/nginx_geo_block.md

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----
-title: "GeoIP blocking countries using Nginx"
-tags: ["nginx", "geoip", "spam", "geo block"]
-date: 2024-04-06
----
-
-Quick and easy way to block entire countries using simple nginx rules.
-Note this is for Ubuntu/Nginx but may work on other systems.
-
-Install required packages & add to nginx config.    
-The GeoIP DB will be under /usr/shared/GeoIP/GeoIPv6.dat (Or GeoIP.dat for v4 only):
-```shell
-sudo apt install -y libnginx-mod-http-geoip geoip-database
-echo 'geoip_country /usr/share/GeoIP/GeoIPv6.dat;' > /etc/nginx/conf.d/geoip.conf
-```
-
-Add this block under the main "http" block in nginx.conf:
-```shell
-# /etc/nginx/nginx.conf
-map $geoip_country_code $allowed_country {
-    default yes;
-    BD no; # Country code to block - Can list mulitple
-}
-```
-
-Then we need to add a simple check in our site vhost inside the `server {` block, but before the `location /` block:
-```shell
-# /etc/nginx/sites-enabled/site.conf or /etc/nginx/conf.d/site.conf
-if ($allowed_country = no) {
-    return 403;
-}
-```
-
-Quick reload and boom! Done!
-```shell
-sudo systemctl reload nginx
-```
-
-Based off an older gist found on [Github here](https://gist.github.com/dunderrrrrr/8d3fced1f73de2d70ede38f39c88d215)