geo by ip

The GEO directives are provided using the Ngx_http_geo_module module. By default, Nginx has to load this module, unless the artificial--without-http_geo_module.The Ngx_http_geo_module module can be used to create variables whose values depend on the

the GEO directive is provided using the Ngx_http_geo_module module. By default,nginx has to load this module unless it is artificially--without-http_geo_module. Role:A module can be used to create a variable whose value depends on the client IP

Online Map is already a common application, and Google Map can even be used as a driving navigator. However, the implementation of these applications involves a lot of hard work, just positioning your current location, there are a lot of

The earthdistance () function in postgreSQL is used in the project to calculate the distance between two points on the earth. There is too little Chinese information. I found a good English article, hope to help those who will use earthdistance in

This article is the fourth to build SQL Server AlwaysOn from 0, which begins to build a node in an offsite roomNote 1.Note It is best to have at least 2 nodes in the GEO node, or a quorum warning when a manual failover occurs on the local node,

Original link: http://blog.csdn.net/johnnycode/article/details/42028841MaxMind GeoIP2 Services can identify the location and other characteristics of Internet users, including personalized content, fraud detection, advertising targeting, website

* Geolocation (geo-location)* Basic Content* Geo-location-point of intersection of Earth's longitude and latitude* How to achieve geo-positioning* GPS-United States, rely on satellite positioning* Beidou positioning-pure domestic, inertial

With the continuous development of information technology, people's requirements for IT infrastructure are also higher, beginning to require the provision of rapid delivery, batch deployment, data analysis, network virtualization and other new needs,

Preface:The earthdistance () function in postgreSQL is used in the project to calculate the distance between two points on the earth. There is too little Chinese information. I found a good English article, hope to help those who will use

HTML5 extension, following two blog posts, let's take a look at some of the extended features of HTML5, since HTML5 is more compatible with computer browsers, Android browsers, Apple browser more browsers, or provide a uniform standard for these