Set Rate Limits and Exemptions
Restricting consumption of resources and rate of requests
Different types of rate limits are defined in different parts of the Reblaze interface.
Static rate limits for each application: Timeouts and request limits per IP are set for each application on the Advanced Frontend Settings on the Web Proxy page.
By location: Rate limits for specific locations/URLs can be created in Rate Limiting Rules and then including them in Security Profiles.
By traffic source: Requestors who are submitting excessive requests across the planet can be banned for configured lengths of time. This can be done via Dynamic Rules.
In some situations, either Rate Limiting Rules or Dynamic Rules could be used. Rate Limiting Rules are the preferable option. They are more powerful, more flexible, and in a future release, they will fully replace Dynamic Rules.
Creating Rate Limiting Exemptions
Creating exemptions from rate limits is done differently, depending on the scope of the rate limits being addressed.
Global: Create an ACL Policy with an OC suffix.
By location: Create an ACL Policy with the name "Rate Limit Whitelist". This can exempt any combination of IP, Country, and ASN. The Policy should then be included in a Profile, and the Profile should be assigned to the appropriate location(s) or portions of your site/application. Example:
By traffic source: A traffic source can be exempted from Dynamic Rule filtering either by adding an Ignore parameter to the Rule itself, or by adding the traffic source to the Whitelist within the Quarantine section.
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