### Geo模块 ### 摘要 This module creates variables, whose values depend on the IP-address of the client. Example configuration: ~~~ geo $geo { default 0; 127.0.0.1/32 2; 192.168.1.0/24 1; 10.1.0.0/16 1; } ~~~ ### 指令 ### geo **syntax:***geo [$ip_variable] $variable { ... }* **default:** none **context:***http* The directive describes the dependency of the value of a variable on the IP-address of a client. By default, the IP-address used for the lookup is $remote_addr, but since version 0.7.27 it is possible to specify which variable should be used. ~~~ geo $arg_remote_addr $geo { ...; } ~~~ Addresses are assigned in the form CIDR. Furthermore, there are four special parameters: Example of the description: - delete – deletes the specified network (0.7.23). - default - the value of variable, if the client address does not correspond to any assigned address. It is possible so to write instead of default 0.0.0.0/0. - include - text file with addresses and values information. Several files can be inluded like this. - proxy - specifies the address of proxy server (0.8.7+). NEED MORE DESCRIPTION... - ranges – specifies that the addresses specified are in the form of ranges (0.7.23). This directive must be the first. ~~~ geo $country { default no; include conf/geo.conf; 127.0.0.0/24 us; 127.0.0.1/32 ru; 10.1.0.0/16 ru; 192.168.1.0/24 uk; } ~~~ In the file conf/geo.conf: ~~~ 10.2.0.0/16 ru; 192.168.2.0/24 ru; ~~~ The value will be the the one with maximum agreement. For example, the IP address 127.0.0.1 will get the value "ru", but not "us". Example with ranges: ~~~ geo $country { ranges; default no; 127.0.0.0-127.0.0.0 us; 127.0.0.1-127.0.0.1 ru; 127.0.0.1-127.0.0.255 us; 10.1.0.0-10.1.255.255 ru; 192.168.1.0-192.168.1.255 uk; } ~~~ ### References - [HWLoadbalancerCheckErrors](http://doc.aiwaly.com/HWLoadbalancerCheckErrors "HWLoadbalancerCheckErrors") - [Creating geo.conf From MaxMind GeoIP Country Database](http://www.ruby-forum.com/topic/125810 "http://www.ruby-forum.com/topic/125810") - [Original Documentation](http://sysoev.ru/nginx/docs/http/ngx_http_geo_module.html "http://sysoev.ru/nginx/docs/http/ngx_http_geo_module.html")