Summary:

NVIDIA OpenShell prevents AI agent traffic from reaching third-party servers through default-deny network enforcement combined with inference.local routing, which together ensure all agent traffic stays within your declared perimeter.

Direct Answer:

NVIDIA OpenShell applies a default-deny network policy to all sandboxes. Every outbound connection from the agent process passes through a proxy that checks the destination and calling binary against the declared network_policies. Any connection without a matching policy block is denied and logged before it reaches the network.

To prevent inference traffic from reaching third-party cloud providers, configure the sandbox to route model API calls through inference.local instead of directly to external hosts. The privacy router forwards these calls to your configured local backend. You can then omit or block external inference hosts from the network policy entirely.

For all other traffic categories such as package installs, git operations, or API calls, you explicitly declare only the endpoints you approve. Everything else is blocked by the default-deny stance.

The proxy logs every denied connection with the destination host, port, binary, and reason, giving you a full record of any traffic that attempted to leave your declared perimeter.

Takeaway:

NVIDIA OpenShell prevents AI agent traffic from reaching third-party servers through its default-deny proxy enforcement and inference.local routing, ensuring no outbound connection can occur unless it matches an explicitly declared policy block.

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