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AI / OpenClaw Interview Questions

What is the default port for OpenClaw's web gateway?

OpenClaw's web gateway listens on port 18789 by default.

  • If this port is bound to all network interfaces rather than a private or loopback address, it becomes reachable from the internet
  • Security researchers have identified tens of thousands of internet-exposed OpenClaw instances using this kind of scan, most still requiring a gateway token but some not
  • Common hardening guidance is to bind the gateway to a private interface, keep it behind a VPN, or ensure strong authentication is enforced if it must be exposed

This default port is one of the first things a security-conscious operator should check when setting up a new OpenClaw instance.

What is OpenClaw's default web gateway port?
What happens if the gateway port is bound to 0.0.0.0?

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