I am trying to get vncserver working on CentOS 8. Fully updated. On the console - logged in as a normal user I run: export DISPLAY=:0.0 xhost + /usr/bin/x0vncserver -display :0 -rfbport 5901 -passwordfile /home/silentm/.vnc/passwd I get this error: Invalid MIT-MAGIC-COOKIE-1 key/usr/bin/x0vncserver: unable to open display ":0" Based on the error I changed the DISPLAY=:0 and tried again - but same error. Am I doing something wrong? I dont really need this to start as a service was just trying to start by hand. Thanks Jerry