Create a firewall

Creates a Firewall to filter network traffic.

  • Use rules to create inbound and outbound access rules. Rule versions increment from 1 whenever the firewall's rules change.

  • Use devices to assign a firewall to a service such as a Linode that is using legacy config profiles, a Linode interface or a NodeBalancer. The firewall’s rules are then applied to that service. Requires a read_write user grant to the device.

    • For Linodes using Linode interfaces, firewalls need to be assigned to linode_interfaces and not the linodes. Firewall templates are available for both VPC Linode interfaces and public Linode interfaces, and come with pre-configured protection rules.

    • For Linodes using legacy configuration profiles, firewalls are applied through the Linode. Public and VPC interfaces are subject to the firewall rules, while VLAN interfaces are not.

  • Currently, firewalls can be assigned to Linodes with legacy configuration profiles, Linode interfaces, and NodeBalancers.

    • The same firewall can be assigned to multiple services at a time.
  • Use firewall_id to assign a firewall when creating a Linode or when adding a Linode interface.

  • A service can have one assigned firewall enabled at a time.

  • Assigned Linodes must not have any ongoing live migrations.

  • A firewall_create event is generated when this operation succeeds.

linode-cli firewalls create \
  --label example-firewall \
  --rules.outbound_policy ACCEPT \
  --rules.inbound_policy DROP \
  --rules.inbound '[{"protocol": "TCP", "ports": "22, 80, 8080, 443", "addresses": {"ipv4": ["192.0.2.0/24", "198.51.100.2/32"], "ipv6": ["2001:DB8::/128"]}, "action": "ACCEPT"}]' \
  --rules.outbound '[{"protocol": "TCP", "ports": "49152-65535", "addresses": {"ipv4": ["192.0.2.0/24", "198.51.100.2/32"],"ipv6": ["2001:DB8::/128"]}, "action": "DROP", "label": "outbound-rule123", "description": "An example outbound rule description."}]'

<https://techdocs.akamai.com/cloud-computing/docs/getting-started-with-the-linode-cli>
firewall:read_write

<https://techdocs.akamai.com/linode-api/reference/get-started#oauth>
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