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Credentials

Certifications

Structured paths that bundle curriculum tracks with a final written assessment. The written assessment is a readiness check that runs in your browser — it tells you whether you are ready, and it stays on this device. Shareable credentials are issued from server-graded mock exams and can be checked by anyone at /verify.

Your credentials

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Timed mock exams

Full-length simulations under the clock — live boxes, no hints, results only at the end. Passing a mock earns a verifiable CPE certificate. Free accounts can preview task 1; the full exam is a Pro feature.

  • LFCS Mock Exam I

    Twenty state-graded tasks under the clock — no hints, no feedback until you submit. Weighted like the real LFCS: essential commands, operations, networking, storage, and system services, graded on what the machine says.

    120 min20 taskspass ≥ 66%
    enter exam mode ▸

  • RHCSA Mock Exam I

    Eight state-graded tasks under the clock — no hints, no feedback until you submit. Graded like the real thing: on what the machine says, persistence included.

    60 min8 taskspass ≥ 70%
    enter exam mode ▸
  • Associate

    Signal9 Linux Associate

    Prove you can move around a live box with confidence: shells, paths, files, permissions and reading the manual.

    • Navigation
    • File operations
    • Permissions
    • Man pages
    Labs
    14
    Hours
    6
    Pass
    70%
    0/2 tracks cleared0%

    Not started · 2 tracks cleared

    2 tracks left to unlock the exam

  • Professional

    Signal9 Linux Professional

    Own a running system: processes, services, logs, users and the failure modes that wake you at 3am.

    • Process control
    • systemd
    • Log triage
    • User management
    Labs
    22
    Hours
    14
    Pass
    75%
    0/3 tracks cleared0%

    Not started · 3 tracks cleared

    3 tracks left to unlock the exam

  • Specialist

    Signal9 Hardening Specialist

    Lock a box down and prove it: SSH policy, least privilege, auditing, network exposure and forensic triage.

    • SSH policy
    • Least privilege
    • Auditing
    • Triage
    Labs
    18
    Hours
    20
    Pass
    80%
    0/3 tracks cleared0%

    Not started · 3 tracks cleared

    3 tracks left to unlock the exam

  • Master

    Signal9 Linux Wizard

    The capstone: clear every track — foundations, operations, engineering and the specialist forensics and hardening work — and prove it end to end. The whole box, no gaps.

    • Full stack of the curriculum
    • Operate
    • Engineer
    • Harden
    • Investigate
    Labs
    76
    Hours
    40
    Pass
    85%
    0/9 tracks cleared0%

    Not started · 9 tracks cleared

    9 tracks left to unlock the exam