Service Composer enables you to gather all of your VMware and third-party security settings in one place where you can see their affect on your VMs and control the communication between your VMs. At first, it almost seems "too easy" because it is based on business context with no relation to the IP address or physical location of the state of your VMs. Once you truly understand what you are doing with Service Composer, then microsegmentation of security will make sense as well.
Making sure an organization's software-defined network (SDN) is secure is the main concern for any organization looking to move to the cloud. This course illustrates how NSX, VMware's SDN solution, provides not just a virtual network environment but also a microsegmentation of security in a business context, down to the level of each application for each tenant. This security aspect of NSX can be an eye-opener for many people. Here Bill Ferguson covers edge firewalls and distributed firewalls, role-based security administration, and security control with Service Composer, a tool that allows you to inspect all the data your network sends and receives.
Make sure to watch Bill's Up and Running with VMware NSX for tips on setting up your network.
Creating a software-defined data center (SDDC)
Configuring and testing distributed and edge firewalls