Maltego is an information gathering tool that has many uses besides gathering network information. You can also gather information on people and companies from various sources. For now, we will use it for gathering network information about a public network.
The first time you start Maltego, you will need to do some setup, and also register at their website in order to log in to the Transform servers. It's easy, free, and spam-free, so giving them your email address won't be a problem. First, you will need to pick the version that you want to use. Maltego XL and Classic are professional versions, which you must pay to get a license for. The CE version is the free version, and while you are learning how to use this tool, the CE version that we will be using in the following section will work just fine. If you are pen-testing for a living, the license for...