On Nov 27, 2021, at 10:55 AM, Michael Nadler <ki7qib@...> wrote:

VNC has always used TCP ports starting at 5900 (not 5000!).  Username is 'pi', unless you created another user.  Password is 'raspberry', unless you changed it.

If you're installing Raspbian completely headless, first you have to connect via ssh and enable VNC using 'raspi-config'.  It's either in interface or advanced options.