Create a Firewall Rule

In this guide, you will learn how to create a firewall rule using the Nirvana dashboard.

1. In the sidebar, navigate to Networking → VPCs, then select the VPC you want to add a firewall rule to. Open the Firewall Rules tab.

2. Click Create Firewall Rule

3. Fill in the form fields:
   • Name (required): A descriptive name for the rule (e.g., allow-ssh-from-office)
   • Protocol (required): The network protocol to match. Options: TCP, UDP.
   • Source Address (required): The source IP address or CIDR range that traffic is allowed from (e.g., 0.0.0.0/0 for all addresses, or 10.0.1.0/24 for a specific subnet). Must be in network-aligned CIDR form.
   • Destination Address (required): The destination IP address or CIDR range within the VPC (e.g., the VPC CIDR or a specific VM’s address). Must be in network-aligned CIDR form.
   • Destination Ports (required): One or more destination ports to allow traffic on (e.g., 22, 80, 443)
   • Tags (optional): Add metadata tags. Type a tag and press Enter to add it.

4. Click Create to add the firewall rule

Note

Firewall rules are stateless — they filter traffic based on the defined criteria without tracking connection state. You must create a VPC before adding firewall rules.