Tag: http-01
All PKI knowledge base pages tagged with "http-01".
- DNS A Record Configuration for ACME Certificate Validation — Configure DNS A records for ACME HTTP-01 challenges. Propagation timing, TTL settings, load balancer considerations, and multi-server validation setup.
- HTTP-01 Challenge API Reference — HTTP-01 challenge API reference: endpoint structure, request/response formats, and integration patterns for RFC 8555 ACME certificate validation via port 80
- HTTP-01 Challenge Commands & Usage — Certbot and ACME client command reference for HTTP-01 validation—webroot, multi-domain, custom ports, and renewal patterns for production certificate automation.
- HTTP-01 Challenge Comprehensive Overview — HTTP-01 validates certificates on port 80 — no DNS API needed. Learn how and when to use it for ACME automation.
- HTTP-01 Challenge DNS Configuration — HTTP-01 validation requires DNS A/AAAA records pointing to your server on port 80. Learn requirements, verification steps, and how to fix resolution failures.
- HTTP-01 Challenge Errors: Fixing 404, Timeout & Validation Failures — Solve ACME HTTP-01 challenge failures. Debug 404 errors, firewall blocks, reverse proxy issues, and .well-known/acme-challenge configuration problems.
- HTTP-01 Challenge Setup: Nginx, Apache & Load Balancer Configuration — Configure HTTP-01 challenge validation for ACME. Web server setup for Nginx, Apache, IIS, and handling challenges behind reverse proxies and CDNs.
- Top 20 PKI Misconfigurations: HTTP-01 404, SAN, Permissions & ACME Challenge Fixes — Fix 'wrong status code 404 expected 200' HTTP-01 challenge, common Certbot DNS-01 errors, SAN and permission mistakes. The misconfigurations that cause 80% of certificate outages—with detection and fixes.