How to Link a Vultr Firewall Group to an Instance

[Suhitha]

Question: How to Link a Vultr Firewall Group to an Instance


A feature that allows you to connect your Vultr account with third-party services for enhanced functionality and integrations.

Linking a Vultr Firewall group to an instance enables the group's filtering rules to the main network interface. A Vultr Firewall group consists of multiple rules that define the flow of traffic and enable filtering of specific requests when linked to an instance.

Follow this guide to link a Vultr Firewall group to an instance using the Vultr Customer Portal, API, or CLI.

Vultr Customer Portal

1.Navigate to Products, expand the Network drop-down and select Firewall from the list of options.

2.Select your target firewall group to manage it.

3.Click Linked Instances on the left navigation menu.

4.Click the Server drop-down and select your target instance from the list and click Add to link the firewall group to the instance.


Vultr API

1.Send a GET request to the List Firewall Groups endpoint and note the target firewall group's ID in your output.

Code Select Expand

console


$ curl "https://api.vultr.com/v2/firewalls" \
  -X GET \
  -H "Authorization: Bearer ${VULTR_API_KEY}"

2.Send a GET request to the List Instances endpoint and note the target instance ID.

Code Select Expand

console


$ curl "https://api.vultr.com/v2/instances" \
  -X GET \
  -H "Authorization: Bearer ${VULTR_API_KEY}"

3.Send a PATCH request to the Update Instance endpoint with a new firewall_group_id value to link the instance to the firewall group.

Code Select Expand

console

$ curl "https://api.vultr.com/v2/instances/{instance-id}" \
   -X PATCH \
   -H "Authorization: Bearer ${VULTR_API_KEY}" \
   -H "Content-Type: application/json" \
   --data '{
    "firewall_group_id" : "<target-firewall-group>"
}'

Vultr CLI

1.List all firewall groups in your Vultr account and note the target firewall group ID..

Code Select Expand

console


$ vultr-cli firewall group list

2.List all instances in your Vultr account and note the target instance ID.

Code Select Expand

console


$ vultr-cli instance list

3.Link the firewall group to the instance.

Code Select Expand

console


$ vultr-cli instance update-firewall-group --instance-id  <target-instance>  --firewall-group-id  <target-firewall-