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Guides from the NOC

Written from running the hardware — what breaks, why, and the command that fixes it.

3 posts matching “certbot” in Troubleshooting · Clear

All 6 Most read VPS 3 Troubleshooting 3
Troubleshooting ERR_CERT_DATE_INVALID: Causes and the Fix

Either the certificate expired or your device's clock is wrong. One command tells you which, and the answer changes the fix completely.

31 August 2026 · 4 min · 19 views Troubleshooting SSL Validation Failing? Fix Blocked .well-known/acme-challenge

AutoSSL or Certbot can't validate your domain? Learn why .well-known/acme-challenge gets blocked and how to fix it on cPanel, Nginx, and Apache.

29 July 2026 · 6 min · 29 views Troubleshooting Let's Encrypt Rate Limits: Every Limit and How to Fix 'Too Many Certificates'

Every Let's Encrypt rate limit with the official numbers - 50 per registered domain, 5 per exact set of identifiers every 7 days - and how to fix each one.

22 July 2026 · 6 min · 30 views