Linux Administration on RHEL 9 and 10: Course Roadmap and Skills Baseline
A practical roadmap for learning current RHEL administration from command-line foundations through security, networking, recovery and production troubleshooting.
Learning path
Linux Administration Learning Path
20 ordered lessons that move from foundations into implementation, troubleshooting, architecture decisions, security, cost control, and operational readiness.
20lessons · start at Lesson 001
Curriculum
Continue in lesson order.
Install RHEL 10 Step by Step: From ISO to a Verified Server Baseline
A complete beginner installation lab covering verified media, virtual hardware, Anaconda, storage, networking, registration, updates, acceptance and Kickstart.
Linux Shell and Command-Line Foundations
A command-line foundation that explains what the shell parses, how evidence flows, and how to avoid unsafe expansion and pipeline mistakes.
Linux Files, Directories, Links, Permissions and ACLs
A filesystem identity and access lesson covering links, traversal, effective permissions, ACL masks and controlled recursive change.
RHEL Users, Groups, sudo and Authentication
An identity lifecycle lesson covering account ownership, group access, sudo policy, service identities and lockout-safe authentication changes.
Linux Processes, Signals, Jobs and Scheduling
A practical process-control lesson covering ancestry, states, signals, resource ownership, background work and auditable scheduling.
RHEL systemd Services, Targets and Boot Troubleshooting
A systemd and boot lesson covering unit ownership, dependencies, targets, service overrides, journals and controlled recovery.
RHEL RPM, DNF, Repositories and Package Verification
A package-management lesson focused on provenance, repository ownership, signed RPMs, transaction history and controlled updates.
RHEL Storage, XFS, ext4 and Mount Operations
A storage lesson covering device identity, filesystem selection, persistent mounts, space failures and offline repair decisions.
RHEL LVM, Swap and Safe Storage Growth
An LVM and swap lesson covering layered identity, online filesystem growth, snapshot limits, memory pressure and controlled capacity change.
RHEL RAID, Device Failure and Recovery
A software RAID lesson focused on array state, exact member identity, degraded operation, safe replacement and backup-aware recovery.
RHEL Networking with NetworkManager, ip, ss and Routing
A current RHEL networking lesson covering profile ownership, addresses, routes, DNS, sockets and safe remote diagnosis.
RHEL firewalld and nftables Administration
A firewall lesson covering ownership, zones, services, policies, nftables inspection and lockout-safe change control.
RHEL SELinux Administration and Troubleshooting
An SELinux lesson that turns access denials into evidence-led policy, label and application decisions.
RHEL Logging with journald, rsyslog and logrotate
A logging lesson covering journals, traditional log routing, rotation, retention, time integrity and incident-safe evidence handling.
RHEL Performance Monitoring and Slow-Server Diagnosis
A symptom-led performance lesson that distinguishes utilization, saturation, latency and workload demand before changing the system.
RHEL SSH Administration and Secure Remote Access
An SSH operations lesson covering server identity, user authentication, policy scope, forwarding, bastions and safe change control.
RHEL NFS and Samba File Services
A network file-service lesson that separates protocol, identity, policy, storage and client evidence.
RHEL DNS and BIND Operations
A DNS operations lesson separating authoritative data, recursive resolution, delegation, caching and client evidence.
RHEL Administrator Scenarios, Interview Questions and Capstone
A practical capstone that evaluates reasoning, safe execution, troubleshooting and recovery rather than command memorization.