| What is NSG in Azure Cloud?
In Azure Cloud NSG(Network Security Group) which has a list of ACL(Access Control List) rules which is either denies or allows network traffic to subnets or NICs(Network Interface Card) connected to a subset or both. In Azure Cloud NSG is linked with a subset, then the ACL rules are applied to all the virtual machines in that subnet.
Restrictions of traffic to individual NIC can be done by associating NSG directly to that NIC. | | |