Successfully installed and turned up APM Planner v2.0.23 on Ubuntu 16.04.
I cannot find the place where you specify the TCP or UDP parameters to connect to the flight controller. On the windows version you could specify TCP or UDP setup under the “Communications” tab. I cannot find a similar Communications tab in the linux version.
Can I use TCP or UDP with the linux version?
Never mind; Just found it. When you roll over the upper left corner, a choice to go “advanced mode” appears, and that reveals the Communications tab. Excellent!