Diagnose Nginx Crashes and Errors

My Ubuntu-based server runs Nginx as both the webserver and an HTTP reverse proxy. Despite average utilisation staying below 50 %, I keep running into three intermittent problems: • the nginx service... (Budget: ₹1500 - ₹12500 INR, Jobs: Application Performance Monitoring, Documentation, HTTP, Linux, Nginx, Performance Tuning, System Administration, Troubleshooting, Ubuntu)