Right now when I launch MacGDBp, it will bind to all interfaces available and this doesn't sound too good when I only run a localhost web server and let it connect to the local debugger letting anyone in the network know I run something on port 9000.

It would be nice to have an option to let it bind to a specific interface specified by the configuration.

This is really outside the scope of MacGDBp, which uses system network libraries that automatically select the interface.