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An RHCE in Enterprise Linux preparation course with 28 guided troubleshooting labs arranged from evidence collection to boot, storage, packages, networking, applications, authentication, and advanced investigation.
| Index | Name | Difficulty | Practice |
|---|---|---|---|
| 01 | Collect Baseline Evidence for an Incident | Beginner | Start Lab |
| 02 | Use Documentation, Logs, and Metrics to Narrow Roo... | Beginner | Start Lab |
| 03 | Configure Centralized Logging and Journal Persiste... | Beginner | Start Lab |
| 04 | Gather a Support Bundle with Web Console Evidence | Beginner | Start Lab |
| 05 | Diagnose and Repair a Failed Boot Service | Beginner | Start Lab |
| 06 | Recover Root Access and Restore Boot Target | Beginner | Start Lab |
| 07 | Repair Bootloader and Kernel Argument Drift | Beginner | Start Lab |
| 08 | Inspect Hardware and Device Failure Signals | Beginner | Start Lab |
| 09 | Manage Kernel Modules and Persistent Parameters | Beginner | Start Lab |
| 10 | Recover a Corrupted Test File System | Beginner | Start Lab |
| 11 | Repair LVM Visibility and Mount State | Beginner | Start Lab |
| 12 | Recover Data from an Encrypted Volume | Beginner | Start Lab |
| 13 | Diagnose Persistent Mount and UUID Problems | Beginner | Start Lab |
| 14 | Repair iSCSI Discovery and Persistent Login | Beginner | Start Lab |
| 15 | Resolve Storage Capacity Exhaustion | Beginner | Start Lab |
| 16 | Resolve Repository and Package Dependency Issues | Beginner | Start Lab |
| 17 | Recover RPM Database and Transaction State | Beginner | Start Lab |
| 18 | Identify and Restore Changed Package Files | Beginner | Start Lab |
| 19 | Diagnose Failed Updates and Rollback Options | Beginner | Start Lab |
| 20 | Repair NetworkManager, DNS, and Routing Drift | Beginner | Start Lab |
| 21 | Inspect Traffic and Firewall Service Paths | Beginner | Start Lab |
| 22 | Identify Application Library and Runtime Failures | Beginner | Start Lab |
| 23 | Diagnose SELinux Application Denials | Beginner | Start Lab |
| 24 | Repair a Containerized Application Service | Beginner | Start Lab |
| 25 | Diagnose PAM and Identity Lookup Failures | Beginner | Start Lab |
| 26 | Debug a Memory or Process-Level Application Proble... | Beginner | Start Lab |
| 27 | Collect Kernel Crash Dump Evidence | Beginner | Start Lab |
| 28 | Compile and Check a Safe SystemTap Probe | Beginner | Start Lab |
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