Before starting the process of scanning with OpenVAS, let's first talk about the different types of scan. You will notice that there are many types, including those that mention the following keywords full: deep, fast, and ultimate. When I first went through them, I was confused as to the differences. The OpenVAS documentation does a great job in describing these options:
- Full and fast: This scan exploits the majority of NVTs and uses information previously collected.
- Full and fast completed: This scan exploits the majority of NVTs and uses previously collected information as well. However, there are some checks that may cause a shutdown of the service/remote system.
- Full and very deep: This scan exploits most of NVTs but is slower because it doesn't use previously collected information.
- Full and very deep ultimate: This scan...
