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External Connections

Run Box instances can be reached from outside through external connection settings, so services running inside an instance can be accessed externally. External connections support two methods — HTTP URL and TCP address — and you can pick the right one for your use case.

HTTP URL External Connections​

Use HTTP when you need to access a web server (Nginx, Django, Node.js, etc.) running inside the instance from a browser.

HTTP connection

  1. Go to Instance Detail > External Connections > HTTP tab > click Create Connection.

  1. In the popup, enter the target port (the port inside the instance) and click Create.

  1. Use the generated URL to reach the target port (e.g., 40010).

TCP Address Connections​

Use TCP when you need to open a specific port directly — for example, for SSH or FTP.

TCP connection

  1. Go to Instance Detail > External Connections > TCP tab > click Create Connection.

  1. Enter the target port (the port inside the instance) and click Create.

  1. Use the assigned tunnel TCP address (e.g., 14.35.173.13:55521) to reach the target port (40020).

Things to Note​

  • External connection settings may be restricted by security policy.
  • Delete external connections you no longer need.