I’m building a hands-on Linux administration and security lab using Windows 11, Hyper-V, and Red Hat Enterprise Linux 9.8.
This repository documents my progress through practical exercises, commands, troubleshooting notes, and screenshots. Each completed milestone builds toward operating, securing, and maintaining Linux servers.
- Host: Windows 11 with Hyper-V
- Guest: Red Hat Enterprise Linux 9.8
- Server:
linux-test - Network: Hyper-V Default Switch
- Administration: SSH from Windows PowerShell
| Part | Topic | Status |
|---|---|---|
| 01 — Remote Administration and Log Integrity | Network configuration, SSH, administrative access, authentication logs, SCP, and SHA-256 verification | Completed |
| 02 — Linux File Ownership and Permissions | File modes, directory access, deletion controls, umask, and group-based access tests | Completed |
| 03 — Patching and Change Control | Update assessment, recovery checkpoint, security patching, reboot validation, and evidence collection | Completed |
| Part 4: Credentialed Vulnerability Scanning and Remediation | Scanned the RHEL VM with Nessus Essentials, blocked ICMP timestamp requests with firewall, and verified the targeted finding cleared on a credentialed rescan | Completed |
- Enabled automatic network connection for the Linux VM.
- Connected from Windows to Linux over SSH and verified the host-key fingerprint.
- Confirmed the server identity, user account, and sudo access.
- Reviewed SSH authentication logs and distinguished connection sources.
- Saved login logs and transferred the evidence to Windows using SCP.
- Compared SHA-256 hashes to verify that the transferred file matched the original.
View the commands, results, and screenshots for Part 1.
Red Hat subscription registration remains unresolved. The web console shows an active Developer subscription, but the registration service does not recognize an accessible organization for the account. Subscription-backed patching has not yet been demonstrated.
This is a personal learning environment. Completed work is supported by evidence within each milestone; planned topics are not claims of completed experience. The screenshots use private lab IP addresses.