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Panel Firewall ​

Host-level firewall & DDoS mitigation for the Pterodactyl Panel host itself — panel pages, API, websocket, and SFTP traffic terminating on the panel machine — driven by an admin-only panel UI that talks to a privileged, HMAC-authenticated Node.js daemon.

Panel Firewall protects the machine your panel runs on, not the game servers. It programs kernel iptables/ipset rules through atomic iptables-restore transactions with checkpoints, a 60-second confirm/auto-rollback window, and an emergency safe mode — so a bad apply can never lock you out. On top of the static L3/L4 ruleset, a SMART engine watches traffic with EWMA anomaly detection and escalates through L1→L3 mitigations automatically, while an L7 sensor tails the web server's access log and temporarily bans HTTP-flood sources — with no nginx/apache config changes required.

Built for ALTIS TECH SOLUTIONS by AnAverageBeingGitHub Repo · Studio

Panel host vs. per-server protection

Panel Firewall guards the panel host only. For per-game-server container firewalling, see the sibling project Firewall-Plus.

Architecture ​

The panel never calls iptables or ipset. Every mutation is an HMAC-signed JSON request to the daemon, a Fastify + better-sqlite3 service on 127.0.0.1:8475 running as root under a sandboxed systemd unit (CAP_NET_ADMIN/CAP_NET_RAW only). The daemon is the single privileged component and refuses to touch any chain, rule, or ipset outside its reserved PTDL_* / ptdl-* ownership prefixes.

Key Features ​

  • L3/L4 packet hygiene & rate limiting — invalid/fragment/null-scan/XMAS/NEW-non-SYN drops, per-IP NEW-connection and SYN hashlimits, whitelist-first rule order with a final RETURN safety rail. See Protection Layers.
  • 5 traffic presets — low, medium, high, veryHigh, underAttack, tuning PPS/CPS/SYN/burst/concurrency ceilings per deployment.
  • Whitelist & blacklist ipsets — hash:net sets with strict CIDR validation, O(1) kernel lookup, and temp-ban automation with expiry.
  • SMART adaptive mitigation — EWMA + variance anomaly detection (default 4σ) driving L1→L3 mitigation levels with cooldowns and repeat-offender scoring.
  • L7 HTTP-flood detection — tails nginx/apache/caddy access logs (autodetected), counts per-IP request rates in a sliding window, and feeds offenders into the temp-ban ipset with a per-minute ban budget. Private/reserved IPs and whitelist entries are never banned.
  • Transactional, crash-safe applies — plan → validate → fsync'd checkpoint → atomic iptables-restore --noflush → verify → 60s confirm window with automatic rollback, plus startup recovery of expired pending applies.
  • One-command install — Blueprint .blueprint or standalone install.sh; the installer auto-installs the daemon and auto-generates the shared bearer token. No manual token step.
  • Analytics & audit — traffic, mitigation and ban timeseries with Chart.js graphs, dual panel+daemon audit logs, Discord-compatible webhooks with HMAC secrets.

Quick Install ​

bash
cd /var/www/pterodactyl
blueprint -install pterodactylpanelfirewall-v0.3.0.blueprint
bash
cd panel-firewall-standalone
sudo bash install.sh

Both paths end the same way: files merged, migrations run, daemon installed to /opt/panel-firewall, 64-hex token generated and synced into the panel DB, systemd service running. See Installation for the full guide and troubleshooting.

Blueprint vs Standalone ​

BlueprintStandalone
RequirementBlueprint framework installedStock Pterodactyl panel, root shell
Install commandblueprint -install <file>.blueprintsudo bash install.sh
Daemon auto-install + auto tokenYesYes
Provider registrationdata/install.sh (hard fail)data/patch.sh (hard fail)
Laravel 11 bootstrap/providers.phpSupportedSupported
Uninstallblueprint -remove / data/remove.shsudo bash uninstall.sh
Data kept on removeYes (unless --purge-data)Yes (unless --purge-data)

Documentation Map ​