Troubleshooting
Diagnose and fix common issues with CDN, WAF, DNS configuration, and visitor IP restoration.
WAF/CDN Connection Errors
Troubleshoot common 502, 503, and 504 errors when traffic passes through the NOC WAF and CDN. Includes origin connectivity checks.
Troubleshooting DNS with dig
Use the dig command to verify DNS propagation, check authoritative responses, and debug resolution issues with your NOC-hosted domains.
Restore Visitor IP
When traffic flows through the NOC CDN or WAF, your origin sees NOC edge IPs. Learn how to restore the real visitor IP in Apache, Nginx, and application logs.
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