How can I screen share/VNC to a Linux system (Ubuntu 16.04) from my MAC (10.11)?
Solution 1:
You don't even need to download any VNC client, as a basic one is built-in.
Finder -> Go -> Connect to Server.
Then in the address bar vnc://<your server ip or hostname>. Something like:
I hope it will help, Jarek
Solution 2:
I just tried connecting a macOS 10.14.5 to RealVNC 6.4.1 on a Raspbian Buster.
To make it work, I had to disable encryption and configure VNC password instead of (Interactive) UNIX password authentication.
There is no clipboard or observation mode support and I wouldn't use it through a WAN because of the lack of encryption, but it works.