接著，就先查一下自己的 nginx 情況吧！
$ nginx -V
nginx version: nginx/1.10.1
... 找關鍵字 ...
--with-http_geoip_module=dynamic
...
很 OK ，接著再裝一下 ngx_http_geoip_module.so 吧！
$ apt-cache search nginx-module-geoip
nginx-module-geoip - geoip module
$ sudo apt-get install nginx-module-geoip
...
The GeoIP dynamic module for nginx has been installed.
To enable this module, add the following to /etc/nginx/nginx.conf
and reload nginx:
load_module modules/ngx_http_geoip_module.so;
Please refer to the module documentation for further details:
http://nginx.org/en/docs/http/ngx_http_geoip_module.html
...
下載 MaxMind 資料:
$ curl http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz | gunzip - > /data/GeoIP.dat
$ curl http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz | gunzip - > /data/GeoLiteCity.dat
設置 Nginx，把 load_module 擺在最前頭
$ sudo vim /etc/nginx/nginx.conf
load_module "modules/ngx_http_geoip_module.so";
...
http {
#geoip_country /data/GeoIP.dat;
geoip_city /data/GeoLiteCity.dat;
...
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" '
'GeoCountry[ "$geoip_country_name" "$geoip_country_code" "$geoip_country_code3" ] '
'GeoCity[ "$geoip_city_country_code" "$geoip_city_country_code3" "$geoip_city_country_name" ] '
'GeoLocation[ "$geoip_latitude" "$geoip_longitude" "$geoip_region" "$geoip_region_name" "$geoip_city" "$geoip_postal_code" ] '
;
access_log /var/log/nginx/access.log main;
...
$ sudo service nginx reload
如此一來，就可以翻 /var/log/nginx/access.log 看看豐富的 GeoInfo 啦
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