Tag: dns
All PKI knowledge base pages tagged with "dns".
- 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.
- DNS A Record Implementation for ACME Infrastructure — DNS A record implementation for ACME infrastructure: IaC patterns, TTL strategies, multi-region setup, and automation to keep HTTP-01 validation reliable at scale.
- 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.