How to install VNC on the server under Ubuntu 20.04

What is VNC

VNC (Virtual Network Computing) - software which made your "local" keyboard and mouse as connected to the any other server. This tool provides the easy management of files, software and settings on a remote server.

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Requirements to install

Although VNC-console as CLI-mode management tool is possible, it is completely senseless cause SSH is better in this scenario (except disaster-recovery). So, reason to use VNC is GUI presence. You need at least 2Gb RAM, 2 cores CPU and 20-30 GB of drive space.

Installation

You're ready now. Please follow steps below:

Update software cache and install packages via system package management tool:

Run the installed tool and set access password. You can also set separated password for "viewers" if you want:

Kill the session:

Add one row to the settings file:

Add execution permissions to file:

Run the service again:

Now your VNC-service is ready to use. Remember: if you prefere any VNC-client you need to add "59" before "real" port number. E.g. if  real port is "1", you must use "5901" in your client software instead:

Result like below should appear. If you've seen this - you're great!

Next step is optional: you may want ro run VNC service automatically. It is easy peasy. Create a service initial file:

Enable our service and launch it:

Conclusion

Now you may organize an easy access to the your server's desktop environment and set this access permanently working.