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Working with Log Files and Journals on RHEL 8

System logging is an important function in Linux. Without logs, troubleshooting would be much more difficult. Even _with_ logs, you're swimming in a sea of data. Knowing how to find what you're looking for is important. In this hands-on lab, we will cover how to locate and interpret system log files and journals. We will also examine how we can preserve system journals across reboots. **Red Hat Exam Requirements Covered:** - Locate and interpret system log files and journals - Preserve system journals *This course is not approved or sponsored by Red Hat.*

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Path Info

Level
Clock icon Beginner
Duration
Clock icon 15m
Last updated
Clock icon Aug 31, 2025

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Table of Contents

  1. Challenge

    Locate and Interpret System Log Files and Journals

    • Query the journal for a number of entries
    • Query the journal for a list of boot session entries, then query a particular session
    • Perform simple journal queries
    • Query the journal for a range of entries based on date/time

  2. Challenge

    Preserve System Journals

    • Determine the settings for the journal persistence
    • Create the needed directory
    • Confirm the journal has been made persistent
    • Ensure all entries are pushed to persistent storage
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