Server errors (500–599)

https://aws.amazon.com/premiumsupport/knowledge-center/troubleshoot-http-5xx/

• HTTP 500 Internal Server Error
• HTTP 502 (Bad Gateway)
• HTTP 503 (Service Unavailable), 503 ERROR The request could not be satified
• HTTP 504 (Gateway Timeout)
• 522 Connection timed out
• HTTP 526 Invalid SSL certificate

K8s:

• Readiness probe failed: HTTP probe failed with statuscode: 500

Related

• systemctl status php-fpm
• AWS Application Load Balancer (ALB)
• kubectl get ing
• Web troubleshooting
• Adaptive DDoS
• Nginx logs: grep -E ' 50[0-9] '

See also

• Server errors (500–599): 500, 502, 503, 504, 526, Web troubleshooting
• List of HTTP status codes, 3XX, 4XX, 5XX, 503, HTTP response status code