how to solve the Problems with X11 - Can’t open display on MAC

how to solve the Problems with X11 - Can’t open display on MAC

1. do commands on mac:

   defaults write com.apple.x11 nolisten_tcp -boolean false
   defaults write org.X.x11 nolisten_tcp -boolean false
   

2.install xquartz

download and install from https://www.xquartz.org/

1. open xterm in xquartz and ssh to your target pc

   ssh -X root@x.x.x.x
   firefox #do your commands to start a gui app
   

thanks solution from Robert Jansen’s comments in app discussions