Restore Changed System Files on Linux

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Restore Changed System Files on Linux

Our Linux systems can serve a number of purposes and host a number of applications, services, and general infrastructure. Regardless of purpose, however, we will be working with files, most of which dictate whether the prior will work -- or work the way we expect. In this lab, we explore methods of restoring these changed files when necessary. _This course is not approved or sponsored by Red Hat._

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Lab Info

Level

Intermediate

Last updated

Sep 22, 2025

Duration

15m

Challenge

Replicate the Issue

Attempt to start the mysqld service.
Challenge

Investigate the Source of the Issues and Resolve

Use rpm and dnf tools to discover the issue with the changed files and restore them.
Challenge

Confirm the Issue Resolution

Start the mysqld service.

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