{"id":"port-80-required-for-acme-challenge","text":"Port 80 must be open on the host even when serving only HTTPS, because Let's Encrypt's HTTP-01 ACME challenge requires it.","truth_value":"IN","source":"entries/2026/05/11/deployments-stargate.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"port-80-required-for-acme-challenge","truth_value":"IN","reason":"premise"}]}}