Puppet Task: waf_aws_update_rate_based_rule
- Defined in:
-
tasks/waf_aws_update_rate_based_rule.json,
tasks/waf_aws_update_rate_based_rule.rb
Overview
Inserts or deletes Predicate objects in a rule and updates the RateLimit in the rule. Each Predicate object identifies a predicate, such as a ByteMatchSet or an IPSet, that specifies the web requests that you want to block or count. The RateLimit specifies the number of requests every five minutes that triggers the rule. If you add more than one predicate to a RateBasedRule, a request must match all the predicates and exceed the RateLimit to be counted or blocked. For example, suppose you add the following to a RateBasedRule: An IPSet that matches the IP address 192.0.2.44/32 A ByteMatchSet that matches BadBot in the User-Agent header Further, you specify a RateLimit of 15,000. You then add the RateBasedRule to a WebACL and specify that you want to block requests that satisfy the rule. For a request to be blocked, it must come from the IP address 192.0.2.44 and the User-Agent header in the request must contain the value BadBot. Further, requests that match these two conditions much be received at a rate of more than 15,000 every five minutes. If the rate drops below this limit, AWS WAF no longer blocks the requests. As a second example, suppose you want to limit requests to a particular page on your site. To do this, you could add the following to a RateBasedRule: A ByteMatchSet with FieldToMatch of URI A PositionalConstraint of STARTS_WITH A TargetString of login Further, you specify a RateLimit of 15,000. By adding this RateBasedRule to a WebACL, you could limit requests to your login page without affecting the rest of your site.