Port limitations on machine / app

Questions / Help
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1

What are the limitations, if any, on the number and types of ports that can be opened on a single machine or application? Additionally, it would be helpful to know if there are any well-known or commonly used ports, such as SMTP (port 25), SSH (port 22), or HTTPS (port 443), that may be subject to additional limitations or considerations when opening them on a machine or app.

Furthermore, are there any specific ports that cannot be opened due to security or other restrictions? And, if so, are there any potential consequences, such as a ban from the platform or other restrictions, if you attempt to open a port that is explicitly prohibited by the platform or violates their terms of service?

2

Hi amartha, so from my current understanding, there aren’t any limits to the port rangers themselves, but you can have a maximum of 10 external_port->internal_port you can have. One way around this is by the use of the port range feature to send data from many external ports to one internal port.

3

Thank you, Billy, for providing me with this helpful information. I appreciate your time and expertise in explaining the current limitations on the external_port->internal_port mapping. It’s good to know that the port range feature can be utilized as a workaround to this limit. Thanks again for your help!