Rate limiting is a technique used to control the number of requests a client can make to a server within a specific time window. It's crucial for several reasons:
Resource Protection: Prevents server overload by limiting concurrent requests
Security: Mitigates brute force attacks, DoS attacks, and API abuse
Fair Usage: Ensures equitable resource distribution among users
Cost Control: Prevents excessive usage that could lead to high infrastructure costs
Quality of Service: Maintains consistent performance for all users Example: Limiting a user to 100 API calls per hour or 10 login attempts per minute.
Rewriting in plainer words…
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