Port Forwarding External IP to Internal IP for FTP

[Leonardo Soares]

Anyone know how to redirect port 21 of the external ip for the internal ip of an instance?

[Nick]

Hi Leonardo,

If you're talking App Engine (the group you're posting to here), port redirection is a little too low level, as App Engine is Platform As A Service and so doesn't expose all the low-level details of the computers that run your app's code. If you want to listen for FTP control (port 21, traditionally), you can do this on Compute Engine quite easily, and you can find the details in the docs on networking and firewalls. With Compute Engine, you can listen to ports as on a traditional box.

If this isn't what you were wanting to know about, I'd suggest making a more specific technical question and posting it on one of our tags over at serverfault, such as google-compute-engine, as that space is more in line with what you're asking here, while this group should be used for more general questions or discussion.