VPC firewall rules
A firewall is either a hardware or software device that filters network traffic that's passing through it. This filtering can be done based on many conditions, such as the source, target IPs, protocol, or ports. It allows you to secure your network from unwanted access.
The firewall rules allow you to control traffic flow to and from VM-based instances. Firewall rules work independently of the VM operating system and are always enforced if put in an enabled state. VPC acts as a distributed firewall that leverages micro-segmentation. This means that the firewall rules are enforced per VM, even if the machines reside in the same network. It should be noted that it does not have the ability to analyze the contents of data packets. The firewall rules are constructed of the following components:
- Ingress (inbound) firewall rules:
- Priority 0:
65545with a default value of1000 - Action:
allowordeny - Enforcement:
enabledordisabled - Target (destination): All instances...
- Priority 0:
