High-level architecture
Deploying and setting up an efficient and secure collection infrastructure that will help us detect and investigate potential security issues and cyber security incidents can be very difficult and time-consuming. To ensure we're going in the right direction, we should start by looking at our infrastructure and our current architecture.
One of the major and most important first steps is to understand and visualize our assets and the links they have with each other. Drawing a good schema is always better than long and inaccurate meetings. Of course, in some cases, a schema is not available, so we will need to gather the right people around the same table during meetings to accurately draw it.
The following diagram shows a simplified architecture schema that comprises multiple virtual local area networks (VLANs), users, demilitarized zones (DMZs), production environments, and servers. All of them are behind firewalls and they can all talk to cloud applications...
