How do I monitor Nginx after a config change?
Check systemctl status nginx (running?), check error logs (sudo tail -20 /var/log/nginx/error.log), test endpoints with curl -I and curl https://domain/api/health, and test WebSocket functionality if applicable. Monitor for 5-10 minutes to ensure stability.
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Back up the current config (cp with timestamp), edit the config, test with nginx -t, reload with systemctl reload nginx, verify with systemctl status and curl. If something breaks, restore the backup and reload. Use an automated script for the process.
Restore the backup: sudo cp /etc/nginx/sites-available/devtinder.bak /etc/nginx/sites-available/devtinder. Test with nginx -t. Reload with systemctl reload nginx (or restart if Nginx is down). Verify with curl and systemctl status.
Yes. Keep Nginx config files in your project repo or a separate config repo. This gives you version history, easy rollback (git checkout), team collaboration, and documentation of all changes. Copy to /etc/nginx during deployment.
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