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BBSFirewall v1.1.0

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@laudenbachm laudenbachm released this 25 May 01:13
v1.1.0
ab4dce6

BBSFirewall v1.1.0

First public release by Sysop Network.

Built on the foundation of bbsfw by Ryan Fantus.

What''s included

  • TCP Proxy — Forwards telnet connections to a backend BBS server
  • SSH Server — Encrypted SSH access proxied to the telnet backend, legacy cipher support for old clients
  • HTTPS Redirect — HTTP (port 80) and HTTPS (port 443) redirect to a configured URL
  • Let''s Encrypt — setup-certs.sh for cert setup and auto-renewal with no downtime
  • PROXY Protocol v1 — Passes the real client IP to the backend BBS (configurable on/off)
  • Country Blocking — Block by country using a local MaxMind GeoLite2 database
  • IP Whitelist / Blocklist — Per-IP and CIDR range support
  • Rate Limiting — Flood protection with configurable window and block duration
  • Per-IP Connection Limit — Cap simultaneous connections from a single IP
  • Encoding Detection — UTF-8/CP437 auto-detection for SSH clients, separate backend routing
  • Graceful Shutdown — Active sessions drain cleanly on SIGTERM/SIGINT
  • PM2 Ready — ecosystem.config.js included for production process management

Getting started

git clone https://github.com/SysopNetwork/BBSFirewall.git
cd BBSFirewall
npm install
cp .env.example .env
nano .env
npm start

See the README for full setup instructions.

MIT License — Copyright (c) 2026 Sysop Network

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