screen/file sharing broken
I need reconnect my newer MacBook to a screen and file share with two older Macs.
The disconnection happened a long time ago but I need to transfer some files from the old iMac. It has no mouse or keyboard but I can control it via screen sharing with another old MacBook.
I believe I have found the solution but I don't understand it.
https://discussions.apple.com/thread/8616638?answerId=250193564022#250193564022
What is SMB? I don't seat my system preferences.