How to Configure Firewall Rules for Vultr Load Balancer

1 min readUpdated 23 October 2026

Restrict which source IP addresses and frontend ports can reach a Vultr Load Balancer to protect backend servers.

Configuring Firewall Rules for Vultr Load Balancer allows you to control the traffic that can reach your load-balanced applications. By setting up firewall rules, you can specify which IP addresses and ports are allowed or blocked, enhancing the security of your services. This feature helps protect your backend servers from unauthorized access and potential threats by filtering incoming traffic based on your defined criteria.

Follow this guide to configure firewall rules for your Vultr Load Balancer using the Vultr Console, API, CLI, or Terraform.

Navigate to Products and click Load Balancers.
Click your target Load Balancer to open its management page.
Scroll down to Load Balancer Configuration, then click the pencil icon in the Firewall Rules section.
Add rules by specifying Port, IP Type (v4/v6), and Source (CIDR).
Click Save changes.

0 Comments

Start the conversation

Be the first to comment and share your perspective with the community.

Configure Firewall Rules for a Vultr Load Balancer | Vultr Docs