Application Security Group - Enhancement on Network Security Group
Application Security Group let us create and manage security rules for our Virtual Machine more intuitively. It provides the ability to bundle the VM's as per their workload and let us enforce rules on it as a group. So far we were applying Network Security Rules on individual VM using their IP. Now, we have the flexibility of grouping them and applying rules on them using Application Security Group name as source and destination. it eliminates the needs to remember IP address of resources. Working with Application Security Group requires planning as we need to define the security policies. These policies are similar with Network Security Group but this features add value to Network Security Group and become more useful when you have multiple virtual machines which perform the similar works and requires same rules. If it's combined with the Tag Policy, it increases the manageability as well as increase governance. This feature is in preview in US West Central, so we need to