Unveiling the Veiled:
A Comprehensive Guide to Installing and Configuring VNC on Ubuntu 20.04
In the vast landscape of Linux-based systems, Ubuntu 20.04 stands as a stalwart, admired for its user-friendly interface and robust capabilities. Yet, in the realm of remote desktop access, Virtual Network Computing (VNC) emerges as a beacon of convenience. In this guide, we embark on a journey through the arcane corridors of Ubuntu 20.04, unveiling the secrets of installing and configuring VNC. Buckle up as we demystify the process and empower you to traverse the digital landscape with seamless remote access.

Section 1: Preparing the Grounds
Unleashing the Terminal Magic:
As we delve into the heart of Ubuntu, the terminal becomes our trusty wand, ready to conjure commands that pave the way for VNC. Open a terminal with a click or the mystical Ctrl + Alt + T incantation. First, we invoke the omnipotent ‘apt’ command to update our repository indices. Feel the power coursing through your fingers as you type:
sudo apt update && sudo apt upgrade -y
This ritual ensures that your system is equipped with the latest enchantments. Next, we summon the ‘tasksel’ spell to install the Ubuntu Desktop environment, the crucible where VNC will forge its connection. Execute the command below:
sudo tasksel install ubuntu-desktop
Now, sit back and witness as Ubuntu assimilates the necessary components for the grand spectacle that is VNC.
The Enchanting Ritual of VNC Installation
Summons from the Repository:
As our Ubuntu Desktop dons its magical attire, it’s time to beckon VNC from the digital realms of the repository. With the command below, we invoke the ‘apt’ spell once again, summoning the ethereal VNC server:
sudo apt install -y tightvncserver
Feel the anticipation as the bits and bytes align, weaving a tapestry of connectivity in your Ubuntu kingdom. Once the installation concludes, the VNC server whispers its secrets, waiting for your beck and call.
Forging Secure Passageways:
Security is our digital fortress, and VNC shall not bypass it without the proper incantations. We fortify our VNC server with a secure password using the ‘tightvncpasswd’ command:
tightvncpasswd
Witness as you craft a cryptographic key that unlocks the gateway to your Ubuntu sanctuary. Guard it well, for this password is the guardian of your digital citadel.
Configuring the VNC Alchemy
Crafting the VNC Startup Elixir:
As our VNC server slumbers, we must imbue it with the power to awaken at Ubuntu’s dawn. We create a startup file with the ‘systemctl’ command, anointing our VNC service to rise from the digital ethers:
sudo nano /etc/systemd/system/[email protected]
Within the sacred confines of Nano, insert the following script, binding the VNC daemon to your user profile:
[Unit]
Description=VNC Server for %i
After=syslog.target network.target
[Service]
Type=forking
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill :%i > /dev/null 2>&1 || :'
ExecStart=/usr/bin/vncserver %i
ExecStop=/usr/bin/vncserver -kill :%i
[Install]
WantedBy=multi-user.target
With the script inscribed, save and exit the Nano realm. To activate our VNC elixir, reload the systemctl daemon and enable the service:
sudo systemctl daemon-reload
sudo systemctl enable [email protected]
sudo systemctl start [email protected]
Watch as the VNC daemon stirs, ready to heed your beckoning.
Navigating the Firewalls of Ubuntu
Unveiling the Portals:
In the realm of Ubuntu, firewalls stand as sentinels guarding against uninvited digital entities. We unravel the iptables, unlocking the VNC portal by appending the following incantations:
sudo iptables -A INPUT -p tcp --dport 5901 -j ACCEPT
sudo ufw allow 5901
These commands part the seas of security, allowing VNC to traverse the digital expanse. With the gates open, the ethereal connection beckons, transcending firewalls with grace.
Ensuring Persistence in the Ethereal Plane:
To ensure our VNC spells persist through the eons of system reboots, we append the iptables configurations to the ‘/etc/rc.local’ script:
sudo nano /etc/rc.local
Enter the following lines before the ‘exit 0’ statement:
iptables -A INPUT -p tcp --dport 5901 -j ACCEPT
ufw allow 5901
As we save and exit, our VNC configuration is etched into the annals of system startup, ensuring its manifestation with every Ubuntu awakening.
The Culmination:
Connecting to Your Ubuntu Oasis
Initiating the VNC Connection:
With the groundwork laid and the spells woven, the moment of connection has arrived. On your local machine, summon your favorite VNC client, be it RealVNC, TigerVNC, or any of the others that grace the digital realms. Enter the ethereal address ‘localhost:5901,’ feeling the currents of connection bridging the physical and virtual.
Reveling in the Ubuntu Elysium:
As the pixels dance and coalesce on your VNC canvas, you find yourself immersed in the Ubuntu Elysium, a digital oasis within your grasp. Navigate the desktop, cast your commands, and revel in the synergy between the physical and the virtual. The journey from installation to connection is complete, and your Ubuntu kingdom is now a realm accessible from any corner of the digital cosmos.
Embark on this odyssey through Ubuntu 20.04, where terminal commands are spells, VNC is the ethereal bridge, and your desktop is an oasis awaiting your digital footprints. As you navigate the installation and configuration of VNC, may your journey be seamless and your connection steadfast in the mystical realm of Ubuntu.