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Linux labs

Sameh Ammar · Started

Labs solved
1 of 63 labs
Modules
0 of 10 modules complete
Average score
Average score 100
Activity, last 12 months
First lab September 7, 2026 · latest September 7, 2026
  1. 1

    Linux Foundations

    0 of 8 · 0%
    1. 1First Login and System DiscoveryUp next
    2. 2Paths and Filesystem NavigationNot started
    3. 3Create and Organize Files SafelyNot started
    4. 4Read and Edit Configuration FilesNot started
    5. 5Search Logs and Build PipelinesNot started
    6. 6Find Files and Understand LinksNot started
    7. 7Archive, Verify, and Restore a ReleaseNot started
    8. 8Shell Environment and a Repeatable InventoryNot started
  2. 2

    Identity and Access

    0 of 6 · 0%
    1. 9User Account LifecycleNot started
    2. 10Groups and Shared Project DirectoriesNot started
    3. 11Permissions, umask, and Sticky DirectoriesNot started
    4. 12Access Control Lists and InheritanceNot started
    5. 13Delegate a Narrowly Scoped sudo ActionNot started
    6. 14Repair SELinux File ContextsNot started
  3. 3

    Everyday System Operations

    1 of 7 · 14%
    1. 15Install, Inspect, and Remove RPM PackagesNot started
    2. 16Repositories and Controlled Package UpdatesNot started
    3. 17Processes, Signals, and Job ControlNot started
    4. 18Operate systemd ServicesNot started
    5. 19Create and Harden a Custom systemd ServiceNot started
    6. 20Investigate Logs and Configure RotationScore 100September 7, 2026
    7. 21Time Zones and Reliable Time SynchronizationNot started
  4. 4

    Networking and Secure Administration

    0 of 8 · 0%
    1. 22Inspect IPv4, IPv6, Routes, and SocketsNot started
    2. 23Persistent NetworkManager ConfigurationNot started
    3. 24DNS Client Resolution and Lookup TroubleshootingNot started
    4. 25firewalld Zones and Least-Privilege AccessNot started
    5. 26Configure and Operate an SSH ServerNot started
    6. 27SSH Keys and Access HardeningNot started
    7. 28SFTP and Verified File SynchronizationNot started
    8. 29Bastion Access and Restricted SSH ForwardingNot started
  5. 5

    Storage and Network Filesystems

    0 of 8 · 0%
    1. 30Discover Disks and Create a GPT PartitionNot started
    2. 31Filesystems and Persistent UUID MountsNot started
    3. 32Build an LVM Application VolumeNot started
    4. 33Expand LVM and Grow an XFS FilesystemNot started
    5. 34Configure Swap and Inspect Memory PressureNot started
    6. 35Enforce Per-Project XFS Storage QuotasNot started
    7. 36NFSv4 Server and Remote Client AccessNot started
    8. 37On-Demand NFS Mounting with autofsNot started
  6. 6

    Linux Foundations

    0 of 5 · 0%
    1. 38Find Answers on the Machine ItselfNot started
    2. 39Become Another User with su and sudoNot started
    3. 40History, Aliases, and Shell Startup FilesNot started
    4. 41Write Your First Bash ScriptsNot started
    5. 42Bash Scripts That Loop Over InputNot started
  7. 7

    Identity and Access

    0 of 4 · 0%
    1. 43Special Permissions: setuid, setgid, and the Sticky BitNot started
    2. 44Password Ageing and Account ExpiryNot started
    3. 45SELinux Port Labels and BooleansNot started
    4. 46Troubleshoot an SELinux DenialNot started
  8. 8

    Everyday System Operations

    0 of 6 · 0%
    1. 47Package History, Undo, and GroupsNot started
    2. 48Schedule Jobs with systemd TimersNot started
    3. 49Schedule Jobs with cron and atNot started
    4. 50Process Priority with nice and reniceNot started
    5. 51Tuning Profiles and Performance ReadingsNot started
    6. 52Boot Targets and the Default TargetNot started
  9. 9

    Networking and Secure Administration

    0 of 1 · 0%
    1. 53Troubleshoot Network Services on One MachineNot started
  10. 10

    Linux Server Services

    0 of 10 · 0%
    1. 54BIND Authoritative Forward and Reverse DNSNot started
    2. 55Restricted DNS Caching and ForwardingNot started
    3. 56Secondary DNS and Authenticated Zone TransferNot started
    4. 57Apache Name-Based Virtual HostsNot started
    5. 58Nginx Reverse Proxy in Front of a Private ApplicationNot started
    6. 59Apache HTTPS with a Training CANot started
    7. 60Rotate the Certificate on an HTTPS Reverse ProxyNot started
    8. 61Samba Authenticated Team ShareNot started
    9. 62MariaDB Administration and Least-Privilege AccessNot started
    10. 63Postfix Local Notifications and the Mail QueueNot started
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