How to Enable a Vultr Firewall Group on a Vultr Cloud GPU Instance

1 min readUpdated 4 November 2026

Attach a Vultr Firewall group to a Cloud GPU instance so its IPv4 and IPv6 port rules filter incoming traffic.

Vultr Firewall groups contain firewall rules to filter incoming traffic on an instance's public network interface. Firewall rules consist of IPv4 or IPv6 port and service definitions to filter network traffic.

Follow this guide to enable a Vultr Firewall group on a Vultr Cloud GPU instance using the Vultr Console, API, CLI, or Terraform.

Navigate to Compute and click Instances.
Click your target Cloud GPU instance to open its management page.
Navigate to the Settings tab.
Click Firewall on the left navigation menu.
Click the Firewall drop-down to select a new firewall group.
Click Update Firewall Group to enable the firewall group on the instance.

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Enable a Firewall Group on a Vultr Cloud GPU Instance | Vultr Docs