Task #15: The Frostwall Protocol — GRE Tunnel Security Architecture #41
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The Frostwall Protocol — GRE Tunnel Security Architecture
Time: 3-4 hours
Status: DEPRIORITIZED — March 14, 2026
Priority: LOW — no active DDoS problem, email unblocked via Billing VPS
Documentation:
docs/tasks/frostwall-protocol/Custom DDoS protection using GRE tunnels from Command Center to TX1/NC1. Hides real IPs, protects email reputation.
Why urgent now: Email is needed soon — Holly staff email, staff comms, subscriber notifications. Frostwall → Mailcow is the only path to get there. This is the critical blocker.
Core Components:
Blocks: Mailcow (email) → Holly email, staff email, subscriber comms, all Tier 2+ infrastructure
Deployment doc: https://docs.google.com/document/d/12Kh-AhUgJLOJrBgIjMiGi3xRZH1basRz
Full docs:
docs/core/tasks.mdor task directoryTask #7: The Frostwall Protocol — GRE Tunnel Security Architectureto Task #15: The Frostwall Protocol — GRE Tunnel Security Architecture