Linux & SysAdmin Training¶
Skill Level: Beginner–Intermediate Goal: Build system administration & security skills
Learn the command line, process management, file systems, and scripting — foundational for both red and blue team operations.
Why Linux Matters¶
Linux is the backbone of modern IT — powering servers, containers, embedded systems, and cloud infrastructure.
Understanding Linux is essential for system administrators, network engineers, and cybersecurity professionals alike.
Why learn Linux:
- Hands-on proficiency: Gain real-world experience configuring systems, managing users, and troubleshooting processes.
- Industry relevance: Linux dominates in cloud, DevOps, and security environments — from AWS to Kubernetes.
- Career growth: Certifications such as LPIC, CompTIA Linux+, and Red Hat RHCSA demonstrate credibility and open doors.
- Security insight: Most exploits, scripts, and tools are Linux-based — knowing the OS helps you defend or emulate them.
- Cloud fluency: Linux knowledge is a must for managing and securing servers across AWS, Azure, and Google Cloud.
In short, Linux training equips you with the technical foundation needed to excel in nearly every cybersecurity discipline.
Labs & Hands-On Learning¶
Interactive, practical platforms to sharpen your command-line and sysadmin skills.
- OverTheWire – Bandit — The ultimate beginner CTF for learning Linux commands.
- Linux Journey — Free, beginner-friendly lessons covering core Linux concepts.
- TryHackMe – Linux Fundamentals — Hands-on virtual labs for basic system management.
- Hack The Box – Linux Path — Structured Linux challenges aligned with security career goals.
Courses & Certifications¶
Expand your knowledge with guided courses and industry-recognized certifications.
- The Linux Foundation – Free Training — Free and paid tracks for administrators and developers.
- Learn Linux TV – YouTube — Accessible video tutorials on Linux management and setup.
- Red Hat System Admin I (RH124) — Core Red Hat training for enterprise administrators.
- TCM Security – Linux for Hackers — Security-focused Linux and privilege escalation course.
Recommended Resources¶
Additional guides and repositories for deeper learning and reference.
- Linux Intro Course — Free programming and Linux deployment course, including .NET and Kubernetes chapters.
- Securing a Linux Server — Practical hardening guide that explains not just how to secure Linux, but why.
Tools & Practice Ideas¶
Try building your skills through small, repeatable tasks:
- Configure and manage SSH keys and permissions.
- Schedule recurring jobs with cron.
- Monitor and analyze processes using
ps,top,htop. - Explore and secure /etc/passwd, sudoers, and file permissions.
- Create a basic Bash or Python script to automate log rotation or service checks.
- Practice securing a Linux server following best practices (firewalls, auditd, fail2ban).
Pro Tip
Don’t just memorize commands — build muscle memory.
Spin up a small VM or cloud instance and use it for everything from text editing to network troubleshooting.
The more you live in the terminal, the faster you’ll grow.
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