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Establish Remote Desktop ConnectionĪt this stage we are ready to turn our attention to a client system from which we will be establishing connection to a remote Ubuntu desktop. If you wish to make your firewall rules more strict visit our How to Open/Allow incoming firewall port guide for more information. In case you have the UFW firewall enabled, open the port 5900 for incoming connections: $ sudo ufw allow from any to any port 5900 proto tcp State Recv-Q Send-Q Local Address:Port Peer Address:Port Once the Ubuntu’s remote desktop feature is enabled you can optionally confirm that your system is now listening on the port 5900. If this option is NOT ticked, the remote desktop session will be set as read-only. The Allow connections to control the screen option gives a remote user the ability to actively interact with a remote desktop. In case you have multiple Networks select which network will be used for remote desktop sharing. If you do not have a monitor (headless) you can install the xserver-xorg-video-dummy package and use the dummy driver to configure a virtual :0 screen for you.Make sure that all switches are set to ON. This assumes screen :0 represents your monitor and binds x11vnc to that monitor instead of a session. # File: /etc/systemd/system/rviceĮxecStart=/usr/bin/x11vnc -loop -nopw -xkb -repeat -noxrecord -noxfixes -noxdamage -forever -rfbport 5900 -display :0 -auth guessĮnable the x11vnc service systemctl enable rvice

Install x11vnc from packages apt install x11vncĬreate the file /etc/systemd/system/rvice # Description: Custom Service Unit file Once you have LightDM installed and configured as your default greeter. Should you for some reason come to regret switching to LightDM: dpkg-reconfigure gdm3 LightDM is still being actively developed and used by many Linux distributions including some other flavors of Ubuntu. The easiest way to get this VNC functionality back is to simply switch back from GDM3 to LightDM. Connecting to the login screen with VNC while using GDM3 is currently not possible. Ubuntu 18.04 switched from LightDM to GDM3. Switch the display manager to lightdm, and then bind vnc with x11vnc

Ubuntu 18.04 vnc