Is it possible to configure the VM open outbound port?

[Yifang Zhang]

Dear Fabric Testbed Admin,

Is there a possible way I could allow a non-standard TCP port (such as 8008) for outbound?

Where can I find the restricted ports/allowed ports for a VM if it has a restriction? For example, if there is a documentation page I can go through.

Thanks a lot!

Yifang

[Komal Thareja]

FABRIC only allows SSH and few ICMP messages over the management interface. Hosting services on management network is not recommended. Instead, we recommend using data plane network for your service.

FABRIC serves as a secure sandbox, allowing students and researchers to experiment with potentially disruptive and vulnerable software architectures in a protected environment. When connecting external devices, such as laptops or servers, to nodes within a slice, it is crucial to employ secure methods like SSH tunnels. A Jupyter notebook example illustrates how to create SSH tunnels through the FABRIC bastion host. Alternatively, users can utilize personal VPNs like Tailscale for secure connections example notebook.

Exposing ports to the entire Internet is restricted, reserved only for exceptional cases where alternative solutions are not viable. Moreover, users undertaking such capabilities are responsible for deploying, maintaining, and ensuring the security of experiments, akin to a production data center. IPv4Ext and IPv6Ext services facilitate these capabilities.

For newcomers, getting acquainted with SSH tunnels is recommended due to their simplicity and security. If users have additional questions or require further guidance, they are encouraged to reach out.

Best,

Komal

[Author]

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