Practical Labs

Every day has a dedicated lab. Each lab includes a Lab ID, objective, required environment, initial conditions, step-by-step instructions, expected results, verification steps, troubleshooting, questions and a full solution for Bash and PowerShell.

Before any lab

Read Lab Environment & Safety. Labs run only on localhost, WSL2, your own VMs or explicitly authorised systems. Take a snapshot or backup before labs that change configuration.

Lab	Title	Day	Scenario	Status
LAB-01	First Contact	01	Identify user, host, OS and shell; write a ticket-ready identity line	Published
LAB-02	Project Workspace	02	Build, back up, reorganise and safely clean a project tree	Published
LAB-03	Log Reader	03	Read, sample and measure large log files; redirect output	2026-11-08 22:00 IST
LAB-04	Needle in the Haystack	04	Find files and error patterns across a directory tree	2026-11-08 22:00 IST
LAB-05	Pipeline Builder	05	Build text and object pipelines; handle exit codes	2026-11-09
LAB-06	Onboard & Offboard	06	Create, modify, lock and audit lab users	2026-11-09
LAB-07	Lock It Down	07	Fix an over-permissive shared folder (with backup)	2026-11-10
LAB-08	Runaway Process	08	Identify a high-CPU process and an inactive service	2026-11-10
LAB-09	Disk Full	09	Find what is consuming disk space	2026-11-11
LAB-10	Software Inventory	10	Inventory, install and update packages safely	2026-11-11
LAB-11 – LAB-15	Networking labs	11–15	IP, connectivity, DNS failure, port 443 owner, packet capture	2026-11-12 → 14
LAB-16 – LAB-20	Security labs	16–20	Logs, failed logins, firewall, baseline audit, suspicious connections	2026-11-14 → 16
LAB-21 – LAB-25	Automation labs	21–25	Scripts, loops, functions, reports, scheduled health checks	2026-11-17 → 19
LAB-26 – LAB-30	Professional labs	26–30	Remote admin, investigations, RCA, diagnostics, capstone	2026-11-19 → 21