Apache Intrusion Detection Module is a simple tool to find out intrusion attempts by examining the client requests in real time.
This is a simple attempt to build an Intrusion Detection Module for Apache. It is being run at two different sites successfully but there is a performance penalty as the module intercepts all object requests and examines with the list of vulnerable CGI applications.
Issuing a simple make should do in most cases; at worst tweak with the Makefile. The make process will compile mod-id as a apache DSO module, if your server has no DSO support you will need more time...
Any suggestions and improvements are welcome.