AWS::NetworkFirewall::RuleGroup RulesSourceList - AWS CloudFormation

AWS::NetworkFirewall::RuleGroup RulesSourceList

Stateful inspection criteria for a domain list rule group.

For HTTPS traffic, domain filtering is SNI-based. It uses the server name indicator extension of the TLS handshake.

By default, Network Firewall domain list inspection only includes traffic coming from the VPC where you deploy the firewall. To inspect traffic from IP addresses outside of the deployment VPC, you set the HOME_NET rule variable to include the CIDR range of the deployment VPC plus the other CIDR ranges. For more information, see AWS::NetworkFirewall::RuleGroup RuleVariables in this guide and Stateful domain list rule groups in AWS Network Firewall in the Network Firewall Developer Guide

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{ "GeneratedRulesType" : String, "Targets" : [ String, ... ], "TargetTypes" : [ String, ... ] }

YAML

GeneratedRulesType: String Targets: - String TargetTypes: - String

Properties

GeneratedRulesType

Whether you want to allow or deny access to the domains in your target list.

Required: Yes

Type: String

Allowed values: ALLOWLIST | DENYLIST

Update requires: No interruption

Targets

The domains that you want to inspect for in your traffic flows. To provide multiple domains, separate them with commas. Valid domain specifications are the following:

  • Explicit names. For example, abc.example.com matches only the domain abc.example.com.

  • Names that use a domain wildcard, which you indicate with an initial '.'. For example,.example.com matches example.com and matches all subdomains of example.com, such as abc.example.com and www.example.com.

Required: Yes

Type: List of String

Update requires: No interruption

TargetTypes

The types of targets to inspect for. Valid values are TLS_SNI and HTTP_HOST.

Required: Yes

Type: List of String

Update requires: No interruption