SecRule in practice
Alright, now that we have had a look at the theory of writing rules, let's start doing some real work by writing rules for more real-life situations. In this section we will look at several examples of how to write rules and rule chains to accomplish a given task.
Blocking uncommon request methods
The three most commonly used HTTP request methods are GET, POST and HEAD. You might be surprised to learn that the HTTP specification actually implements many more methods—if a web server supports the WebDAV (Web-based Distributed Authoring and Versioning) extensions, the total number of methods becomes almost 30. As an example, here are the request methods implemented by the latest version of Apache:
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