Operating Systems

everything about linux distro and not only

Linux CLI HowTo 0 🐧 Linux Boot ProcessLinux CLI HowTo 0 🐧 Linux Boot ProcessGnome 1 🐧 How to Install GNOMEInstalling AnduinOS 1.3.2 and looking around 🐧Installing AnduinOS 1.4 🐧 looking aroundKDE discover Dolphin Part 1LFCA 1 🐧 Introduction to the Linux FoundationLFCS 1 🐧 Introduction to LFCS and the ExamLinux CLI 1 🐧 IntroductionGnome 2 🐧 How to install flatpakInstalling VanillaOS 2 stable 20250220 🐧 looking aroundKDE Discover application easy installation 2LFCA 2 🐧 What is LFCA — Exam, Format, and ObjectivesLFCS 2 🐧 Exam Format, Domains, and ScoringLinux CLI 2 🐧 Filesystem NavigationInstalling Alpine Linux 3.23.0 🐧 and GnomeKDE neon easy app installation 3LFCA 3 🐧 What is Linux — History and OriginsLFCS 3 🐧 Setting Up a Practice Lab — OptionsLinux CLI 3 🐧 ls, file and less commandsOpenGL 3D acceleration in virt manager 🐧 ubuntuLFCA 4 🐧 Linux Distributions ExplainedLFCS 4 🐧 Building a Lab with VMsLinux CLI 4 🐧 Symbolic and Hard linksLFCA 5 🐧 Choosing a Linux DistributionLFCS 5 🐧 Building a Lab with ContainersLinux CLI 5 🐧 WildcardsInstalling DragonFly BSD 6.4.1 configuration and moreInstalling MODICIA O.S. 6.12.41 🐧 looking aroundInstalling OpenMandriva Linux 6 and look aroundInstalling Q4OS 6.1 🐧 looking aroundLFCA 6 🐧 Installing Linux — Overview and RequirementsLFCS 6 🐧 The Shell — How It WorksLinux CLI 6 🐧 make directory, copy, move, rename, delete files and directoriesLFCA 7 🐧 Installing Ubuntu Step by StepLFCS 7 🐧 Shell Navigation — pwd, cd, lsLinux CLI 7 🐧 Commands type, whichLFCA 8 🐧 First Boot and Initial SetupLFCS 8 🐧 Getting Help — man, --help, infoLinux CLI 8 🐧 help, --help and manHow to create Rocky Linux 9 4 installation USBHow to install Rocky Linux 9.4 in VboxInstalling OracleLinux R9 U6 🐧 looking aroundInstalling Rocky Linux 9.6 🫆 looking aroundLFCA 9 🐧 The Linux Filesystem HierarchyLFCS 9 🐧 Creating Files and Directories — touch, mkdirLinux CLI 9 🐧 whatis,apropos and info commandsLFCA 10 🐧 Important Directories ExplainedLFCS 10 🐧 Copying Files and Directories — cpLinux CLI 10 🐧 create your aliasesInstalling ALT Linux 11.0 🫆 looking aroundLFCA 11 🐧 The Shell — What It Is and How It WorksLFCS 11 🐧 Moving and Renaming — mvLinux CLI 11🐧 Input/Output and redirectionLFCA 12 🐧 Basic Shell Navigation — pwd, cd, lsLFCS 12 🐧 Deleting Files and Directories — rm, rmdirLinux CLI 12 🐧 pipelines and cat, grep, wc commandsInstalling Br OS 13.0 🐧 looking aroundInstalling Voyager Live 13.1 🐧 looking aroundLFCA 13 🐧 Getting Help — man, --help, infoLFCS 13 🐧 Viewing Files — cat, less, head, tailLinux 13 🐧 uniq, head, tail and tee commandsInstalling FreeBSD 14 2 🫆 xfce4 desktopLFCA 14 🐧 Creating Files and Directories — touch, mkdirLFCS 14 🐧 Editing Files with nanoLinux CLI 14 🐧 echo commandLFCA 15 🐧 Copying Files and Directories — cpLFCS 15 🐧 Editing Files with vim — BasicsLinux CLI 15 🐧 shortcutsInstalling openSUSE Leap 16.0 🐧 looking aroundLFCA 16 🐧 Moving and Renaming — mvLFCS 16 🐧 Text Processing — grep BasicsLinux CLI 16 - history 🐧LFCA 17 🐧 Deleting Files and Directories — rm, rmdirLFCS 17 🐧 Text Processing — sed BasicsLinux CLI 17 🐧 Owner, group member and the restInstalling Zorin OS 18 🐧 looking aroundLFCA 18 🐧 Viewing Files — cat, less, head, tailLFCS 18 🐧 Text Processing — awk BasicsLinux CLI 18 🐧 id, chmod and umask commandsLFCA 19 🐧 Editing Files with nano — BasicsLFCS 19 🐧 Archives with tarLinux CLI 19 🐧 su and sudo commandsLFCA 20 🐧 Editing Files with vim — BasicsLFCS 20 🐧 Compression — gzip, bzip2, xzLinux CLI 20 🐧 chgrp, chown and passwd commandsLFCA 21 🐧 What Users and Groups AreLFCS 21 🐧 Modern Compression — zstd, lz4Linux CLI 21 🐧 view and terminate processesInstalling Linux Mint 22.1 🐧 looking aroundLFCA 22 🐧 Viewing Users and Groups — /etc/passwd, /etc/groupLFCS 22 🐧 Finding Files — findLinux CLI 22 🐧 background/foreground processes and system reboot/shutdownUbuntu 22.04 install insyncUbuntu 22.04 install NalaUbuntu 22.04 install Tuxedo Control CenterInstall MX Linux 23.2 and look aroundInstall Ubuntu 23.04LFCA 23 🐧 The Root User and sudoLFCS 23 🐧 Searching Content — grep in DepthLinux CLI 23 🐧 printenv and export commandsHow to Install Ubuntu 24.04Installing Pop OS 24.04 LTS 🐧 looking aroundLFCA 24 🐧 Understanding File PermissionsLFCS 24 🐧 Standard Streams — stdin, stdout, stderrLinux CLI 24 🐧 nano CLI editorUbuntu(Kubuntu) upgrade to version 24.04When I get cannot satisfy dependencies in Kubuntu 24.04When I have to use App Center in Ubuntu 24.04When I need to access/format a USB stick in Ubuntu 24.04When I need to choose the app to open a file in Ubuntu 24.04When I need to create a (desktop) shortcut on Ubuntu 24.04When I need to create/rename or delete files or folders in Ubuntu 24.04When I need to find all the running application in Ubuntu 24.04When I need to find/connect to a device on the network - Ubuntu 24.04When I need to find/search a file in Ubuntu 24.04When I want to use gnome software with flatpak in Ubuntu 24.04When Ubuntu 24.04 boots in black screen after upgradeInstalling Deepin 25 beta 🐧 looking aroundInstalling Mabox Linux 25.04 and look aroundInstalling Ubuntu 25 04🐧looking aroundLFCA 25 🐧 Changing Permissions — chmodLFCS 25 🐧 Output Redirection — >, >>, 2>, &>Linux CLI 25 🐧 Prompt CustomizationLFCA 26 🐧 Changing Ownership — chown, chgrpLFCS 26 🐧 Pipes — Combining CommandsLinux CLI 26 🐧 Package managementLFCA 27 🐧 Package Managers — OverviewLFCS 27 🐧 xargs — Building Argument ListsLinux CLI 27 🐧 mount and umount commandsLFCA 28 🐧 Installing PackagesLFCS 28 🐧 tee — Splitting OutputLinux CLI 28 🐧 fdisk commandLFCA 29 🐧 Removing and Updating PackagesLFCS 29 🐧 Here Documents and Here StringsLinux CLI 29 🐧 fsck, mkfs and dd commandsLFCA 30 🐧 Viewing Running ProcessesLFCS 30 🐧 Process SubstitutionLinux CLI 30 🐧 ping and trace route commandsLFCA 31 🐧 Killing and Managing ProcessesLFCS 31 🐧 Users — Creating and ModifyingLinux CLI 31🐧 ip and netstat commandsLFCA 32 🐧 Background Jobs and Job ControlLFCS 32 🐧 Groups — Creating and ManagingLinux CLI 32 🐧 ftp and wget commandsLFCA 33 🐧 What System Services AreLFCS 33 🐧 Deleting Users and GroupsLinux CLI 33 🐧 ssh commandLFCA 34 🐧 Managing Services with systemctlLFCS 34 🐧 Password Policies — chageLinux CLI 34 🐧 scp and sftp commandsLFCA 35 🐧 Service States — Enabled vs RunningLFCS 35 🐧 Account Aging and ExpirationLinux CLI 35 🐧 locate and find commandsLFCA 36 🐧 Disks, Partitions, and FilesystemsLFCS 36 🐧 File Permissions — rwx and OctalLinux CLI 36 🐧 xargs and touch commandsLFCA 37 🐧 Mounting and Unmounting FilesystemsLFCS 37 🐧 Special Permissions — setuid, setgid, stickyLinux CLI 37 🐧 stat command and inodesInstall Fedora 38LFCA 38 🐧 Checking Disk Usage — df, duLFCS 38 🐧 Default Permissions — umaskLinux CLI 38 🐧 gzip and bzip2 commandsLFCA 39 🐧 What is an IP AddressLFCS 39 🐧 Access Control Lists — getfacl, setfaclLinux CLI 39 🐧 tar and zip commandsInstall Nobara 40 in VirtualBoxLFCA 40 🐧 Subnets and CIDR ExplainedLFCS 40 🐧 Switching Users — suLinux CLI 40 🐧 rsync commandLFCA 41 🐧 Gateways and Routing BasicsLFCS 41 🐧 Privilege Escalation — sudoLinux CLI 41 🐧 regular expressionsInstalling Fedora 42 🐧 looking aroundInstalling Nobara 42 🫆 looking aroundInstalling Ultamarine 42 Flagship 🐧 looking aroundLFCA 42 🐧 Viewing Network Interfaces — ip addr, ip linkLFCS 42 🐧 Sudo Configuration — visudo and sudoersLinux CLI 42 🐧 sort and uniq commandsLFCA 43 🐧 DHCP vs Static IPLFCS 43 🐧 Sudo Delegation and NOPASSWDLinux CLI 43 🐧 cut paste and join commandsLFCA 44 🐧 What DNS DoesLFCS 44 🐧 Environment Variables — OverviewLinux CLI 44 🐧 comm, and diff commandLFCA 45 🐧 Resolving Names — /etc/hosts and /etc/resolv.confLFCS 45 🐧 Shell Configuration Files — .bashrc, .profileLinux CLI 45 🐧patch and tr commandsLFCA 46 🐧 Testing Connectivity — ping, tracerouteLFCS 46 🐧 Shell AliasesLinux CLI 46 🐧 sed commandLFCA 47 🐧 Checking Open Ports — ss, netstatLFCS 47 🐧 Shell FunctionsLinux CLI 47 🐧 aspell commandGnome 48 🐧 1a Getting started with GnomeGnome 48 🐧 2b 🐧 The Activities Overview - Super KeyGnome 48🐧 2a. Dynamic Triple Buffering - DTBLFCA 48 🐧 Firewalls — What They DoLFCS 48 🐧 Shell History — Configuration and UseLinux CLI 48 🐧 nl, fold and fmt commandsLFCA 49 🐧 Basic Firewall Commands — ufw, firewalldLFCS 49 🐧 Package Management — APTLinux CLI 49 🐧 pr and printf commandsLFCA 50 🐧 What SSH IsLFCS 50 🐧 Package Management — DNFLinux CLI 50 🐧 groff commandLFCA 51 🐧 Connecting with SSHLFCS 51 🐧 Package Management — RPMLinux CLI 51🐧 pr, lpr and lp commandsLFCA 52 🐧 SSH Keys — Generating and UsingLFCS 52 🐧 Repository ConfigurationLinux CLI 52 🐧 lpstat, lpq and lprm commandsLFCA 53 🐧 Copying Files — scpLFCS 53 🐧 Package Verification and SigningLinux CLI 53 🐧 shell scripts introductionLFCA 54 🐧 Interactive Transfer — sftpLFCS 54 🐧 Viewing Processes — ps, top, htopLinux CLI 54 🐧 shell script variablesLFCA 55 🐧 Syncing Files — rsync BasicsLFCS 55 🐧 Killing Processes — kill, pkill, killallLinux CLI 55 🐧 shell scripts output textLFCA 56 🐧 Shell Scripting — Your First ScriptLFCS 56 🐧 Process Priority — nice, reniceLinux CLI 56 🐧 shell scripts input textLFCA 57 🐧 Shell Scripting — Variables and QuotingLFCS 57 🐧 Background Jobs — &, bg, fg, jobsLinux CLI 57 🐧 shell scripts functionsJavaScript 58 🧬 Proxy and ReflectLFCA 58 🐧 Shell Scripting — ConditionalsLFCS 58 🐧 Persistent Sessions — nohup, screen, tmuxLinux CLI 58 🐧 shell functions part 2LFCA 59 🐧 Shell Scripting — LoopsLFCS 59 🐧 Signals — Overview and UseLinux CLI 59 🐧 shell scripts flow control and ifLFCA 60 🐧 Environment Variables ExplainedLFCS 60 🐧 systemd — Concepts and ArchitectureLinux CLI 60 🐧 test command in shell scriptsLFCA 61 🐧 Shell Configuration Files — .bashrc, .profileLFCS 61 🐧 systemd — Managing ServicesLinux CLI 61 🐧 modern test version and in (( )) shell scriptsLFCA 62 🐧 What Log Files AreLFCS 62 🐧 systemd — Unit FilesLinux CLI 62 🐧 loops in shell scriptsLFCA 63 🐧 Where Logs Live — /var/logLFCS 63 🐧 Creating Custom systemd UnitsLinux CLI 63 🐧 case command in shell scriptsLFCA 64 🐧 Reading Logs with journalctlLFCS 64 🐧 systemd TimersLinux CLI 64 🐧 for loop in shell scriptsLFCA 65 🐧 Monitoring CPU and MemoryLFCS 65 🐧 Traditional Cron JobsLinux CLI 65 🐧 Parameter expansion in shell scriptsLFCA 66 🐧 Monitoring Disk and NetworkLFCS 66 🐧 At Jobs — One-Time SchedulingLinux CLI 66 🐧 Case conversion in shell scriptsLFCA 67 🐧 Backup Concepts — Full, Incremental, DifferentialLFCS 67 🐧 Cron and At Access ControlLinux CLI 67 🐧 Number bases and conversionLFCA 68 🐧 Backing Up with tarLFCS 68 🐧 Boot Process — OverviewLinux CLI 68 🐧 operators in shell scriptsLFCA 69 🐧 Backing Up with rsyncLFCS 69 🐧 System TargetsLinux CLI 69 🐧 bc in shell scriptsLFCA 70 🐧 Restoring from a BackupLFCS 70 🐧 Changing Default TargetLinux CLI 70 🐧 Arrays in shell scriptsLFCA 71 🐧 What Cloud Computing IsLFCS 71 🐧 Boot Recovery — Single-User ModeLinux CLI 71 🐧 1-70 Full 🐧 2 hoursLFCA 72 🐧 IaaS, PaaS, and SaaS ExplainedLFCS 72 🐧 Root Password ResetLFCA 73 🐧 Major Cloud Providers — AWS, Azure, GCPLFCS 73 🐧 Partitioning — ConceptsLFCA 74 🐧 Virtual Machines vs ContainersLFCS 74 🐧 Partitioning with fdiskLFCA 75 🐧 What Docker IsLFCS 75 🐧 Partitioning with gdisk (GPT)LFCA 76 🐧 Running Your First ContainerLFCA 77 🐧 Docker Images vs ContainersLFCA 78 🐧 What Kubernetes Is and Why It ExistsLFCA 79 🐧 Kubernetes Architecture — Nodes, Pods, Control PlaneLFCA 80 🐧 Basic kubectl CommandsLFCA 81 🐧 What DevOps IsLFCA 82 🐧 CI/CD — Concepts and PipelinesLFCA 83 🐧 Continuous Integration ExplainedLFCA 84 🐧 Continuous Delivery vs Continuous DeploymentLFCA 85 🐧 Version Control — Why It MattersLFCA 86 🐧 Git Basics — init, add, commitLFCA 87 🐧 Git Remotes — push, pull, cloneLFCA 88 🐧 Git Branching — BasicsLFCA 89 🐧 What Infrastructure as Code IsLFCA 90 🐧 Terraform — ConceptsLFCA 91 🐧 What Configuration Management IsLFCA 92 🐧 Ansible — ConceptsLFCA 93 🐧 Security Fundamentals — CIA TriadLFCA 94 🐧 Authentication vs AuthorizationLFCA 95 🐧 Passwords and HashingLFCA 96 🐧 Multi-Factor AuthenticationLFCA 97 🐧 Symmetric vs Asymmetric EncryptionLFCA 98 🐧 What Certificates AreLFCA 99 🐧 HTTPS and TLS — How It WorksLFCA 100 🐧 Common Security Threats — OverviewLFCA 101 🐧 Phishing and Social EngineeringLFCA 102 🐧 Malware — Types and DefenseLFCA 103 🐧 Principle of Least PrivilegeLFCA 104 🐧 System Hardening BasicsLFCA 105 🐧 Keeping Systems UpdatedLFCA 106 🐧 Compliance and Data Privacy BasicsLFCA 107 🐧 GDPR, HIPAA, and PCI — OverviewLFCA 108 🐧 Open Source Licensing — OverviewLFCA 109 🐧 Common Licenses — MIT, GPL, ApacheLFCA 110 🐧 Copyleft vs Permissive LicensesLFCA 111 🐧 Cloud Native PrinciplesLFCA 112 🐧 Microservices — ConceptsLFCA 113 🐧 What Site Reliability Engineering IsLFCA 114 🐧 SLI, SLO, and SLALFCA 115 🐧 Error Budgets and ToilLFCA 116 🐧 Troubleshooting — A Methodical ApproachLFCA 117 🐧 Common Troubleshooting ScenariosLFCA 118 🐧 Real-World Scenario — Deploying a Simple Web ServerLFCA 119 🐧 Real-World Scenario — Managing Users and PermissionsLFCA 120 🐧 Real-World Scenario — Setting Up a BackupLFCA 121 🐧 Real-World Scenario — Basic Network DiagnosticsLFCA 122 🐧 Real-World Scenario — Deploying a ContainerLFCA 123 🐧 LFCA Exam Objectives ReviewLFCA 124 🐧 LFCA Practice Questions — Domain 1LFCA 125 🐧 LFCA Practice Questions — Domain 2LFCA 126 🐧 LFCA Practice Questions — Domain 3LFCA 127 🐧 LFCA Practice Questions — Domain 4LFCA 128 🐧 LFCA Practice Questions — Domain 5LFCA 129 🐧 LFCA — 8-Week Study PlanLFCA 130 🐧 LFCA — Final Review and Exam Day TipsLFCA 131 🐧 LFCA - CheatsheetInstalling Kali linux 2025.2 🐧 looking aroundInstalling KaOS 2025.09 🐧 looking aroundInstalling SDesk 2025.05.06 🫆 looking aroundDavinci Resolve - Speed up change to Delivery tabInstall VirtualBox - KDE neonWhen I need to find/connect to a device on the network - KDEIn case you do not know this... VirtualBox install guest additions in a KDE virtual machine.Configure OBS Studio 🐧 for saving replaysCreate an installation USB with KDE neonHow to install OBS studio in Fedora the easy wayHow to install ProxmoxHow to install TeamViewer in FedoraHow to install Virtual Box in FedoraHow to install Visual studio Code on Ubuntu (with KDE)How to Ubuntu and Remote DesktopInstall Davinci Resolve in any Linux distroInstall latest stable mesa driversInstall Visual Studio Code FedoraInstalling CachyOS 🐧 looking aroundKDE and play with files on DolphinKDE change display scaleKDE customize DesktopKDE Discover Applications Easy InstallationKDE how to start an application and alternative launchersKDE install Node.js with NVMKDE Maneuvering windowsKDE my favourite customization.KDE neon Install lutrisKDE neon install TLP and TLP UIKDE neon Installation with Btrfs manual partitioningKDE neon my Spectacle settingsKDE TrashKDE Virtual DesktopsSteam Flatpak or Native package managerTuxedo OS installationUbuntu & KDE how to zip and unzip filesUbuntu access onedrive with rcloneUbuntu how to add and delete firewall rulesUbuntu install Asset Manager Studio and Unreal EngineUbuntu install CoreCtrlUbuntu record instant replays with Replay SorceryVirtualbox Install KDE neonWhen I need to access/format a USB stick in KDE DEWhen I need to choose default application for a file in KDEWhen I need to create a link/shortcut in KDEWhen I need to create/rename/delete files/folders in KDEWhen I need to find running applications in KDEWhen I need to find/search a file in KDEWhen I need to install Cinnamon DE in UbuntuWhen I need to open/edit/save a simple text file in UbuntuWhen I need to open/edit/save files in kdeWhen I need to use Discover in KDE