How to use GeoIP database to block a country in Nginx

First I need to make sure my Nginx has the geoip module.

Check it by entering the command below.


nginx -V

My Nginx shown the results as below.

nginx version: nginx/1.14.1
built with OpenSSL 1.1.1 11 Sep 2018
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fdebug-prefix-map=/build/nginx-urYIzg/nginx-1.14.1=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Wdate-time -D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fPIC' --prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --modules-path=/usr/lib/nginx/modules --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module --with-http_v2_module --with-http_dav_module --with-http_slice_module --with-threads --with-http_addition_module --with-http_geoip_module=dynamic --with-http_gunzip_module --with-http_gzip_static_module --with-http_image_filter_module=dynamic --with-http_sub_module --with-http_xslt_module=dynamic --with-stream=dynamic --with-stream_ssl_module --with-stream_ssl_preread_module --with-mail=dynamic --with-mail_ssl_module --add-dynamic-module=/build/nginx-urYIzg/nginx-1.14.1/debian/modules/http-auth-pam --add-dynamic-module=/build/nginx-urYIzg/nginx-1.14.1/debian/modules/http-dav-ext --add-dynamic-module=/build/nginx-urYIzg/nginx-1.14.1/debian/modules/http-echo --add-dynamic-module=/build/nginx-urYIzg/nginx-1.14.1/debian/modules/http-upstream-fair --add-dynamic-module=/build/nginx-urYIzg/nginx-1.14.1/debian/modules/http-subs-filter

I found  –with-http_geoip_module=dynamic

It is cool, I have the geoip module with my Nginx installation.

Second,  I need GeoIP country database.

Here is the official site to download the database.

I use the commands in my terminal window.

wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz

gunzip GeoIP.dat.gz

sudo mkdir/etc/nginx/geoip

sudo copy GeoIP.dat /etc/nginx/geoip

Last, Modify Nginx config files

Edit the /etc/nginx/nginx.conf

In the http block, add following code.


geoip_country /etc/nginx/geoip/GeoIP.dat

Edit my website config file, /etc/nginx/conf.d/mysite.conf

Find the location block, I add the following code.


if  ($geoip_country_code = "CA"){

return 403;

}

Here, Country Code, or “CA”, is an example. You can use any two-letter country code, such as RU, US, CN.

It is also very useful, when I want to setup some sub-website for the users from different country.

 

 

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