Useful Notes – Ubuntu/Ubuntu Studio 22.04 LTS “Jammy Jellyfish”

I use Ubuntu Studio 22.04 LTS “Jammy Jellyfish” because comes with many-many preinstalled Apps.

Main Things to do after installing Ubuntu Studio 22.04 LTS “Jammy Jellyfish”

I have chosen Ubuntu Studio 22.04 LTS because I do Graphic and Video Editing along with my main Programming work…
[Support: Ubuntu Studio 22.04 LTS (Jammy Jellyfish) will be supported for 3-years until April 2025.]
[Note: Ubuntu 22.04 LTS is supported for 5-years.] 
[Direct upgrades to Ubuntu Studio 22.04 from supported versions prior to 21.10 are not supported.]

Main Things To Do:

  1. Get your system ready with updates and repositories. Get familiar with auto-updates [Software & Updates, Software Center]
    sudo apt update && sudo apt upgrade
  2. Install applications of your choice from the software center, mainly Programming IDEs/Editors, because Content Creation Apps are come preinstalled already in Ubuntu Studio. 
  3. Give your Ubuntu OS a different color [ Settings > Appearance ]
  4. Get familiar with the new screenshot tool. [ When you press the Print Screen button to take the screenshot, it opens the UI and gives you the option to take the screenshot of the selected area, entire screen, or current application window. ]
  5. Know about cleaning your system. The classic apt autoremove command is a good way to remove packages that are not required anymore.
    sudo apt autoremove
  6. Master the keyboard shortcuts
    Ctrl + Alt + T: Ubuntu terminal shortcut [instead of opening a terminal use Alt+F2 to run the console]
    Ctrl + Q: Close an application window
    Alt + Tab: Switch between running applications
    Super[Win] + Space: Change input keyboard e.g. En <->Ru
    Ctrl + Alt + arrow: Move between workspaces
    Ctrl + Alt + Del: Log out
    Go to Settings->Devices->Keyboard [for Custom Keyboard Shortcuts]

Other Special Things you will do, if you want it, by REFERENCES ONLINE:  


I major/critical advice from the Source of
Ubuntu & Ubuntu Studio – Linux: for current-old users of Ubuntu Studio 20.04, about the upgrade to all new Ubuntu Studio 22.04 LTS, NOT TO DO SO… BUT DO INSTEAD A CLEAN INSTALL OF 22.04!!! >>>>


Since it’s just out, you may experience some issues, so you might want to wait a bit before upgrading.

Due to the change in the desktop environment that started after the release of 20.04 LTS, direct upgrades from 20.04 LTS are not supported and may only be attempted at-your-own-risk. As with any system-critical operation, back-up your data before attempting any upgrade. The safest upgrade path is a backup of your /home directory and a clean install.

We have had anecdotal reports of successful upgrades from 20.04 LTS (Xfce desktop) to later releases (Plasma desktop), but this will remain at your own risk, and it is highly recommended to wait until 22.04.1 is released in August before attempting such an upgrade.

Instructions for upgrading are included in the release notes.


Personally, I did a clean install of Ubuntu Studio 22.04 in VMware Workstation Pro 15 – and would recommend it because this allows you to clean up and start fresh with Ubuntu Studio 22.04 LTS with a new set of applications and a new desktop environment.


Linux Distros for < ... >

Linux Distros for < … >



Steam OS –


Photography / Video Production / Graphic Designer

Ubuntu Studio –


Programming / Soft Development

Semi Code (out of date) [Preinstalled Apps and Soft IDEs]


Workstation User / Programmer / Coder

Fedora or Ubuntu or Linux Mint or Linux Arch or Antegros


Ethical Hacking & Penetration

Kali Linux or Parrot Linux

// –

Kali Linux Cheat Sheet


Consumer Web Server

CentOS 7 or Ubuntu Server or Debian – – –


Enterprise Server

RHEL 7 –

or Ubuntu Server –


Linux with Windows like Desktop

Linux Mint –


Linux with MacOS like Desktop

Elementary OS –


Linux Foundation Exams LFCS , LFCE –

are available for

CentOS 7 Server or Ubuntu Server
– –


It doesn’t matter what kind of user you are, there exists a perfect Linux distro for you.

1. Best Linux Distro for Desktops and Powerful Laptops – Linux Mint, known to provide a near-to-perfect Linux desktop experience.

2. Best Linux Distro for Regular Laptop – Ubuntu MATE. Ubuntu comes with nine different flavours that have their own programs, features, and desktop environments.

3. Best Linux Distro for Older and Slow Hardware – Puppy Linux. It is ideal for the conditions where a compact distro due to older hardware and low computing resources.

4. Most Customizable Linux Distro – Arch Linux. It is a minimalistic Linux distro that allows your to start learning Linux from scratch. But, it is not recommended for the beginners as thereís a lot of command line work and manual configuration.

5. Most Beautiful Linux Distro – elementaryOS. The maker of this completely community-based OS are an expert in design and it is one of the prettiest Linux distributions you will come across.

6. Best Best Privacy-focused Linux Distro – Tails. It is a live operating system that you can boot on any computer from a USB stick, SD card, or DVD and used by the likes of Edward Snowden.

7. Best Linux for Ethical Hacking and Penetration Testing – Kali Linux. It is a special purpose Linux distro for pen testing and network security testing. With more than 600 tools, Kali Linux is designed to be used in a single, root user scenario due to security purposes.

8. Best Linux Distro For Servers – Debian. One of the longest running Linux distros, Debian, has served as a framework for many other distros like Mint and Ubuntu.

9. Best Linux Distro For IoT – Snappy Ubuntu Core. Focussing on Internet of Things application, Canonical released a Snappy version of Ubuntu Core OS for IoT.

10. Best Linux Distro For Video Editing and Multimedia Production – Ubuntu Studio. It fills an empty spot of a multimedia production-focused Linux distro. It comes with tools for recording, mixing, mastering, live processing, or even coding.

11. Best Linux Distro For Gaming – SteamOS. Honestly, there isn’t a Linux distro that is perfect for playing all kinds of game. With each passing day, more and more games are being officially released on Linux.


Upcoming Program Changes for the LFCS Certification Exam in 2018

Answers & Notes

If you sit for a free retake after 13:00 UTC on March 20, 2018, you will be tested on Domains and Competencies V3.18 (even if that is not what you were originally tested on during your first attempt).

LFCS Domains and Competencies V3.18

Essential Commands – 25%

  • Log into local & remote graphical and text mode consoles
  • Search for files
  • Evaluate and compare the basic file system features and options
  • Compare and manipulate file content
  • Use input-output redirection (e.g. >, >>, |, 2>)
  • Analyze text using basic regular expressions
  • Archive, backup, compress, unpack, and uncompress files
  • Create, delete, copy, and move files and directories
  • Create and manage hard and soft links
  • List, set, and change standard file permissions
  • Read, and use system documentation
  • Manage access to the root account

Operation of Running Systems – 20%

  • Boot, reboot, and shut down a system safely
  • Boot or change system into different operating modes
  • Install, configure and troubleshoot bootloaders
  • Diagnose and manage processes
  • Locate and analyze system log files
  • Schedule tasks to run at a set date and time
  • Verify completion of scheduled jobs
  • Update software to provide required functionality and security
  • Verify the integrity and availability of resources
  • Verify the integrity and availability of key processes
  • Change kernel runtime parameters, persistent and non-persistent
  • Use scripting to automate system maintenance tasks
  • Manage the startup process and services (In Services Configuration)
  • List and identify SELinux/AppArmor file and process contexts
  • Manage Software
  • Identify the component of a Linux distribution that a file belongs to

User and Group Management – 10%

  • Create, delete, and modify local user accounts
  • Create, delete, and modify local groups and group memberships
  • Manage system-wide environment profiles
  • Manage template user environment
  • Configure user resource limits
  • Manage user privileges
  • Configure PAM

Networking – 12%

  • Configure networking and hostname resolution statically or dynamically
  • Configure network services to start automatically at boot
  • Implement packet filtering
  • Start, stop, and check the status of network services
  • Statically route IP traffic
  • Synchronize time using other network peers

Service Configuration – 20%

  • Configure a caching DNS server
  • Maintain a DNS zone
  • Connect to network shares 
  • Configure email aliases
  • Configure SSH servers and clients
  • Restrict access to HTTP proxy servers
  • Configure an IMAP and IMAPS service
  • Query and modify the behavior of system services at various operating modes
  • Configure an HTTP server
  • Configure HTTP server log files
  • Restrict access to a web page
  • Configure a database server
  • Manage and configure containers
  • Manage and configure Virtual Machines

Storage Management – 13%

  • List, create, delete, and modify physical storage partitions
  • Manage and configure LVM storage
  • Create and configure encrypted storage
  • Configure systems to mount file systems at or during boot
  • Configure and manage swap space
  • Create and manage RAID devices
  • Configure systems to mount file systems on demand
  • Create, manage and diagnose advanced file system permissions
  • Setup user and group disk quotas for filesystems
  • Create and configure file systems