{"id":"hcloud-firewall-five-protocols","text":"Hetzner Cloud firewall rules support five protocols: `tcp`, `udp`, `icmp`, `esp`, and `gre`.","truth_value":"IN","source":"entries/2026/03/11/hcloud_firewall_add-rule.md","source_url":"","source_hash":"0f4938f814407c0a","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"hcloud-firewall-five-protocols","truth_value":"IN","reason":"premise"}]}}