Why limit
On This Lesson 4 topics
This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.
In this lesson
name the reasons to limit traffic.
Planned topics
- Protect capacity from abusive or buggy clients (a retry loop, a scraper).
- Fairness: one customer must not starve others.
- Cost control and protection of downstream services and paid APIs.
- Security: slows credential stuffing and brute force.
- Limits are keyed by something: API key, user, IP, tenant.
Draft outline details
Demonstration
| Key | Good for | Weakness |
|---|---|---|
| IP | anonymous traffic | shared NAT, proxies |
| User or API key | fairness per customer | needs authentication |
Check your understanding
Why not limit only by IP?
Show answer
Many users can share one IP and attackers can rotate IPs.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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