Oubliette

An SSH honeypot that logs login attempts, presents fake shells to "successful" logins, and tries to detect when a real human is poking around.

Named after the medieval dungeon - a place you throw people into and forget about them.

Status

Early development. See PLAN.md for the roadmap.

Usage

Build

# With Nix
nix build

# With Go
nix develop -c go build ./cmd/oubliette

Configure

Copy and edit the example config:

cp oubliette.toml.example oubliette.toml

Key settings:

• ssh.listen_addr — listen address (default :2222)
• ssh.host_key_path — Ed25519 host key, auto-generated if missing
• auth.accept_after — accept login after N failures per IP (default 10)
• auth.credential_ttl — how long to remember accepted credentials (default 24h)
• auth.static_credentials — always-accepted username/password pairs (optional shell field routes to a specific shell)
• Available shells: bash (fake Linux shell), fridge (Samsung Smart Fridge OS), banking (80s-style bank terminal TUI), adventure (Zork-style text adventure dungeon), cisco (Cisco IOS CLI with mode state machine and command abbreviation)
• storage.db_path — SQLite database path (default oubliette.db)
• storage.retention_days — auto-prune records older than N days (default 90)
• storage.retention_interval — how often to run retention (default 1h)
• shell.hostname — hostname shown in shell prompts (default ubuntu-server)
• shell.banner — banner displayed on connection
• shell.fake_user — override username in prompt; empty uses the authenticated user
• web.enabled — enable the web dashboard (default false)
• web.listen_addr — web dashboard listen address (default :8080)
  • Session detail pages at /sessions/{id} include terminal replay via xterm.js
• web.metrics_enabled — expose Prometheus metrics at /metrics (default true)
• web.metrics_token — bearer token to protect /metrics; empty means no auth (default empty)
• detection.enabled — enable human detection scoring (default false)
• detection.threshold — score threshold (0.0–1.0) for flagging sessions (default 0.6)
• detection.update_interval — how often to recompute scores (default 5s)
• notify.webhooks — list of webhook endpoints for notifications (see example config)

GeoIP

Country-level GeoIP lookups are embedded in the binary using the DB-IP Lite database (CC-BY-4.0). The dashboard shows country alongside IPs and includes a "Top Countries" table.

For local development, run scripts/fetch-geoip.sh to download the MMDB file. The Nix build fetches it automatically.

Run

./oubliette -config oubliette.toml

Test with:

ssh -o StrictHostKeyChecking=no -p 2222 root@localhost

SSH exec commands (ssh user@host <command>) are also captured and stored on the session record.

NixOS Module

Add the flake as an input and enable the service:

{
  services.oubliette = {
    enable = true;
    package = inputs.oubliette.packages.${system}.default;
    settings = {
      ssh.listen_addr = ":2222";
      auth.accept_after = 10;
      auth.static_credentials = [
        { username = "root"; password = "toor"; }
      ];
    };
  };
}

Alternatively, use configFile to pass a pre-written TOML file instead of settings.

Docker

Build a Docker image via nix:

nix build .#dockerImage
docker load < result
docker run -v /path/to/data:/data -p 2222:2222 -p 8080:8080 oubliette:0.8.0

Place your oubliette.toml in the data volume. The container exposes ports 2222 (SSH) and 8080 (web/metrics).