{"id":"catbeez-arcade-port-80-required-for-acme","text":"Firewall port 80 must be opened for Let's Encrypt ACME challenges even though traffic is served on port 443.","truth_value":"IN","source":"entries/2026/05/11/deployments-catbeez-arcade.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"catbeez-arcade-port-80-required-for-acme","truth_value":"IN","reason":"premise"}]}}