Remote desktop sharing on Ubuntu 20.04 Focal Fossa

The following tutorial will explain how to setup client/server remote desktop sharing on Ubuntu 20.04 Focal Fossa.

In this tutorial you will learn:

Software Requirements and Conventions Used

Software Requirements and Linux Command Line Conventions
Category	Requirements, Conventions or Software Version Used
System	Installed or upgraded Ubuntu 20.04 Focal Fossa
Software	GNOME desktop, remmina
Other	Privileged access to your Linux system as root or via the `sudo` command.
Conventions	# – requires given linux commands to be executed with root privileges either directly as a root user or by use of `sudo` command $ – requires given linux commands to be executed as a regular non-privileged user

From here click on the Screen Sharing. Turn on the Network switch of the network interface you wish to share your screen on. This will effectively enable the screen sharing of your Ubuntu 20.04 Desktop

Create a new firewall rules to allow port 5900 for an incoming connections:

$ sudo ufw allow from any to any port 5900 proto tcp
Rule added
Rule added (v6)

Head over to your client desktop from which you wish to access the remove desktop you enabled in the previous steps. Install remote desktop client remmina:
```
$ sudo apt install remmina
```
Start the Remmina client. Create a new connection, insert any arbitrary name for your remote desktop connection. Select the VNC protocol, insert Server information such as the Remote Desktop’s IP address or hostname and set Quality or Color depth and hit Save button.

Connect to the remote desktop share.
Once you make an attempt to connect to your remote desktop the pop-up message will appear to Accept the connection.
All done. You should now be able to access the remote desktop client.