--- name: openclaw-security-hardening description: Harden OpenClaw self-hosted environments with baseline host controls, auth tightening, secret handling, network segmentation, and safe update/rollback workflows. Use when deploying OpenClaw in home labs, startups, or production-like local AI infrastructure. license: MIT metadata: author: devops-skills version: "1.0" --- # OpenClaw Security Hardening Use this skill to reduce exposure in self-hosted OpenClaw deployments before opening access to teammates or external networks. ## Build a Threat Model First Map the highest-risk assets and paths: - Admin/API endpoints for OpenClaw - Provider API keys and model credentials - Prompt/response logs containing sensitive business data - Host-level access (SSH, local admin accounts, remote desktop) Prioritize controls that reduce credential theft, remote code execution blast radius, and data exfiltration. ## Apply Baseline Host Hardening 1. Keep OS and package dependencies patched on a regular cadence. 2. Run OpenClaw as a dedicated non-admin user account. 3. Enable full-disk encryption and secure boot features where available. 4. Remove unnecessary services and block inbound ports by default. 5. Lock down remote admin (key-only SSH, no password login, limited source CIDRs). Example Linux baseline checks: ```bash id openclaw sudo ss -tulpn sudo ufw status verbose sudo systemctl --failed ``` ## Harden Application Runtime - Bind OpenClaw to localhost or private VLAN by default. - Place a reverse proxy in front of OpenClaw for TLS, auth, and rate limits. - Enforce authentication on every non-health endpoint. - Disable debug/dev modes in persistent environments. - Restrict outbound egress to only required providers (LLM API, telemetry sink, package mirror). Example reverse proxy controls to enforce: - TLS 1.2+ only - strict transport security header - request body size limits - request timeout and upstream timeout guardrails - per-IP and per-token rate limiting ## Protect Secrets and Tokens - Store secrets in a vault or platform secret manager, not committed `.env` files. - Rotate provider and admin tokens on a fixed interval and after any incident. - Scope tokens minimally (least privilege, per-service keys). - Scan repos and deployment artifacts for leaked credentials before release. Rotation checklist: 1. Generate replacement key. 2. Update runtime secret store. 3. Restart or reload OpenClaw. 4. Validate request success with new key. 5. Revoke old key. ## Segment Network Access Use layered access patterns: - **Tier 1 (private):** OpenClaw service port reachable only from app/proxy subnet. - **Tier 2 (operator):** Admin plane reachable only from VPN/Tailscale/WireGuard. - **Tier 3 (public):** Expose only hardened reverse proxy with strict ACLs. Do not publish raw OpenClaw service ports directly to the internet. ## Add Detection and Recovery Paths - Centralize auth, error, and audit logs. - Alert on brute-force attempts, token failures, and unusual outbound traffic. - Capture immutable backup snapshots of configs and prompt data retention settings. - Test rollback and restore procedures every release cycle. Minimum operational runbook: - service restart path - key revocation path - incident isolation path (network block + token disable) - known-good rollback version ## Validation Checklist - All sensitive endpoints require auth and are unreachable without VPN or gateway policy. - Secrets are absent from repo history and plaintext shared directories. - Host firewall default deny is active for inbound traffic. - TLS termination and rate limits are active at ingress. - Rollback drill can restore service within target RTO. ## Related Skills - [openclaw-local-mac-mini](../openclaw-local-mac-mini/) - Local OpenClaw hosting setup - [multi-tenant-llm-hosting](../multi-tenant-llm-hosting/) - Multi-tenant AI isolation patterns - [zero-trust](../../networking/zero-trust/) - Private access and identity-aware network controls