8.3 Infrastructure Security

Capture OS interacts with a bunch of moving pieces:

• DEX / aggregator APIs

• RPC endpoints

• Your own server(s) / VPS

• Monitoring and logging stack

Basic non-negotiables:

1. Harden your host

   • Keep OS and Python packages updated.

   • Use firewall rules / security groups to restrict access.

   • Disable unnecessary services and ports.

2. Secure secrets

   • Store API keys, RPC endpoints, and any auth tokens in:

     • Env vars or a secrets manager.

     • Not in plain text in Git repos.

   • Don’t log secrets.

3. Monitor health & anomalies

   • Track:

     • Error rates (API failures, RPC issues).

     • Unusual latency spikes.

     • Unexpected process restarts/segfaults.

   • Alerts > surprises.

4. Backups & reproducibility

   • You don’t need “backups of trades” as much as:

     • Reproducible infra (IaC, Docker, scripts).

     • Logs of decisions (why a trade was taken).

If your infra is a mess, your risk isn’t just market – it’s you.