Say if you visit my site: http://nesmods.com/page/2/ there isn't actually a /page/2/ on my site, Wordpress somehow catches the URL and generates a page based on the URL. What is the name of this technique?
There are a few ways to do this, referred to as URL routing or URL rewriting. Wordpress uses URL routing to map URL structures to it's internal functions that generate content.
It can also be done with the web server itself, such as URL Rewriting with Apache mod_rewrite
This redirecting is managed by the mod_rewrite Module of Apache. Normally this is done in the .htaccess
file. Depending on the configuration of your FTP program you can see them as hidden files in the Wordpress root directory.
Some further explanations and examples: http://www.workingwith.me.uk/articles/scripting/mod_rewrite - and Google of course.
Apache hava a module of rewrite url。 It is a good search engine optimization。 This is a detail info about rewrite http://httpd.apache.org/docs/2.0/mod/mod_rewrite.html