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By default, a sandbox can reach any public IP on the internet. The platform always blocks egress to private, link-local, and loopback ranges regardless of your allow rules. Use network rules to narrow the allowlist further.
Rules control what a sandbox may reach. To see what it actually reached — every connection, allowed or blocked — use the network log.

Allow specific destinations

allowOut / allow_out accepts a mix of CIDRs and domain patterns. Combine it with denyOut: ["0.0.0.0/0"] to build a strict allowlist - deny everything, then add exceptions.

Rule format

Allow rules take precedence over deny rules when they overlap.

Update rules on a running sandbox

Networking can be updated after creation - changes apply immediately to new connections.
Blocking *.superserve.ai will break the SDK’s ability to communicate with the sandbox.