The limits that refuse: 413 and 504
client_max_body_size, proxy_read_timeout, and why raising a limit without writing down what the new number protects turns a clean refusal into a slow failure.
22 minutesTechnical content last reviewed on 3 Aug 2026
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What this lesson builds
- Serving a site and putting an application behind Nginx
- Narrowing an unknown failure to one component