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Fix "Too Many Open Files" on Linux

Server Configuration

Sep 24, 20266 min read

Fix "Too Many Open Files" on Linux

Server crashing with EMFILE or "too many open files"? Here's what causes it and how to fix ulimit, limits.conf, and systemd LimitNOFILE for good.

Nginx Reverse Proxy Setup for Node.js Apps

Server Configuration

Sep 19, 20265 min read

Nginx Reverse Proxy Setup for Node.js Apps

Configure Nginx as a reverse proxy for Node.js: headers, WebSockets, HTTPS, and the mistakes that cause 502s in production.

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