NSG

NSG, or Network Security Group, is a set of rules used in cloud computing and networks to control and protect access to resources. Think of it as a digital security gatekeeper that specifies who can connect to certain services or data, and under what conditions. It works by filtering network traffic based on rules such as IP addresses, ports, or protocols, helping to prevent unauthorized access and ensure that only trusted users or systems can reach sensitive information. This helps organizations maintain security while enabling necessary connectivity.