CertClue
Courses · IT Support
Junior Sysadmin

Systems Administration (Windows + Linux)

Run Windows and Linux servers side by side: identity and permissions, disk and services, logs, patching, scheduled work, and backups you have actually restored. You leave with a provisioning script, a tested restore runbook, a patch log and a postmortem.
6 hrs taught · 5.5 to 10 hrs applied 7 modules 30 lessons 6 portfolio artifacts Completion certificate Updated August 2026
Created by the CertClue team
What you'll build

Real portfolio pieces built during the course, not a certificate for its own sake. Each one is work you can show.

  • User provisioning scriptOne PowerShell version and one shell version of the same new starter routine: create the account, put it in the right groups, force a password change, refuse to run twice, and write a line to a log every time.
  • Backup and restore runbook with a tested restoreWhat is backed up, where it goes, how long it is kept, and the restore procedure written step by step. Plus the record of the restore you actually ran: what came back, how long it took, and what did not come back.
  • Patch logA row per server per patch cycle: what was applied, when, by whom, whether a reboot happened, what was checked afterwards, and the backout you had ready. The document that answers the auditor and the two in the morning question.
  • Server build checklistThe repeatable build: naming, patching, time sync, accounts and access, storage layout, monitoring, backup enrolment, documentation and the sign-off line. Written so a second person builds an identical server without asking you anything.
  • Service outage postmortemA blameless write up of one outage: timeline to the minute, impact, what actually caused it, how it was detected, what fixed it, and the specific actions that make the next one shorter. Interview ammunition you can talk about for ten minutes.
  • Contractor access decision recordThe migration broken into the tasks it actually contains, each with the access that task needs, the person who owns that data and has to approve it, what is being refused and what the refused grant would have allowed, and an end date with a named person against every grant.

What you'll learn

Fundamentals, kept short
The role decoded
A day in the role
The recurring calendar
Live simulation · a worked sysadmin week
Artifacts · the portfolio you leave with
Handoff

Course content · 7 modules, 30 lessons

Sign up to unlock every lesson - the titles below show exactly what is inside.

The durable model, taught on Windows and Linux at the same time rather than one platform then the other: what a server is for, who an account is, what permissions really decide, where disk space goes, what a service is, why a machine is slow, what a name resolves to, and how to read a log. Eight lessons, then you are working.

What a sysadmin actually does
Identity: users, groups and where accounts live
Permissions, and the elevation you should not be using
Filesystems and where the disk went
Processes and services
Memory, processor and load: it is up but it is slow
Name resolution: what happens between a name and a server
Logs, and where to look first

Requirements

  • No prior experience in this field is required to start.
  • A computer with a reliable internet connection.
  • Comfortable using a web browser - no software to install.

Description

Every CertClue course follows the same seven-part shape: fundamentals, the role translated out of job-posting language, a real working day, the job's recurring rhythms, a multi-day simulation, the portfolio you build along the way, and a handoff into your next move. Here is what that looks like for junior sysadmin.

Who this course is for

Anyone aiming to become a junior sysadmin, including career changers with no background in it yet. This is the entry rung of a realistic ladder:

entry
Junior Systems Administrator

Maintains Windows and Linux servers, handles user accounts, and follows routine maintenance schedules.

Server maintenanceUser accountsPatching
mid
Systems Administrator

Owns a set of systems end to end, automates routine tasks, and leads on incident response for their systems.

AutomationIncident responseSystem ownership
senior
Senior Systems Administrator

Sets standards across the environment, plans major upgrades, and mentors junior admins.

StandardsUpgrade planningMentoring

Where it leads

This course prepares you for the CompTIA Linux+ · Microsoft server certifications role or credential path. Named for preparation only - no partnership or endorsement is implied.

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