Ubuntu 21.04
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Desktop Environment : Configure VNC Server2021/05/04

 
Install and Configure VNC Server to connect with GUI from remote clients.
[1] Install VNC server.
root@dlp:~#
apt -y install tigervnc-standalone-server
[2] Login as a user you'd like to set VNC. By the way, this example shows to use MATE Desktop on VNC connection.
# set VNC password

ubuntu@dlp:~$
Password:
Verify:
Would you like to enter a view-only password (y/n)?
n
# start VNC server with MATE desktop, diplay number [1], screen resolution [800x600]

ubuntu@dlp:~$
tigervncserver -xstartup /usr/bin/mate-session -geometry 800x600 -localhost no


New Xtigervnc server 'dlp.srv.world:1 (ubuntu)' on port 5901 for display :1.
Use xtigervncviewer -SecurityTypes VncAuth,TLSVnc -passwd /home/ubuntu/.vnc/passwd dlp.srv.world:1 to connect to the VNC server.

# if stop VNC, run like follows

ubuntu@dlp:~$
tigervncserver -kill :1

Killing Xtigervnc process ID 4389... success!
[3]
Install VNC viewer on client computer, this example in on Windows 10.
Download from the site below to install UltraVNC.
After installing UltraVNC, click [UltraVNC Viewer] to run, then, following screen is shown.
Input [(Server's hostname or IP address):(display number)] like following example and then click [Connect] button.
[4] Password is required. Input VNC password you set in the section [2].
[5] Just connected.
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