Infrastructure Specialist | Minimalist Hardware | Maximal Automation Currently architecting headless lab environments and mastering RHEL 9, with a transitional roadmap to RHEL 10.
This repository serves as a structured syllabus, script archive, and documentation hub for my Red Hat Certified System Administrator (RHCSA) journey. It is strictly organized by the official Red Hat EX200 exam objectives.
To practice real-world system recovery and virtualization management, my lab environment is built entirely on-premise:
- Hypervisor: KVM (Kernel-based Virtual Machine)
- Host OS: Ubuntu
- Guest VMs: Red Hat Enterprise Linux 9 (RHEL 9)
- Design Philosophy: Headless, terminal-driven management to maximize hardware efficiency.
The directories below map directly to the skills required for the EX200 exam. Each folder contains specific README.md files, bash scripts, and configuration notes.
- 01_Essential_Tools: I/O Redirection, Tar, Grep, SSH, Links.
- 02_Operation_of_Running_Systems: Boot intervention (
rd.break), systemd targets, tuning. - 03_Configuring_Local_Storage: LVM (PV, VG, LV), resizing filesystems, Swap.
- 04_File_Systems_and_Attributes: NFS, Autofs, SGID, ACLs.
- 05_Deploy_and_Maintain_Systems: Cron, DNF local repositories, Chrony, Kickstart.
- 06_Basic_Networking:
nmcli, static IPs,firewall-cmd. - 07_Manage_Users_and_Groups: Password aging (
chage),visudo, user groups. - 08_Security_and_SELinux: Contexts, Booleans, Port labeling, Troubleshooting.
- 09_Container_Management: Rootless Podman, systemd service integration.
- 10_Mock_Exams_and_Labs: Comprehensive, multi-objective practice scenarios.
- Cheatsheet_Docs: Quick-reference guides and exam overviews.
While this repository currently focuses on RHEL 9 maturity, a transition to RHEL 10 is planned. Future updates will introduce:
- Managing desktop applications via Flatpaks.
- Leveraging the Lightspeed AI terminal assistant.
- Adapting to Kernel 6.12 nuances and the removal of core Podman objectives from the base EX200 exam.
"If it doesn't survive a reboot, it didn't happen."