Module 21 Overview: Troubleshooting System Problems
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Video Transcription
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>> Hey there, Cybrarians.
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>> Welcome back to
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>> the Linux plus course here at Cybrary.
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I'm your instructor Rob Goelz.
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In today's lesson, we're going to move into Module 21,
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where we're going to
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cover troubleshooting system problems.
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Upon a completion of today's lesson,
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you are going to be able to do attack
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the system troubleshooting objectives
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that are going to be on
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the Linux plus exam and we'll see how
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these concepts are covered in Module 20.
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What will you take away from this module, well,
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we're going to understand
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some common Linux system problems
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and learn how to troubleshoot system issues.
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We're going to determine the best way we can
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recover from these issues and we're going to
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do this by using system
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troubleshooting tools and overall,
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this is going to help us to ensure
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system performance and security.
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In this module, we're going to cover
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network concepts for troubleshooting as well as
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troubleshoot network configuration itself
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and then we're going to see how we can do
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troubleshooting with Netstat NSS
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and look at network latency troubleshooting.
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Next, we're going to move
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into troubleshooting network performance
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and looking at things like fixing name resolution,
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checking network security, and
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sniffing and mapping networks.
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Then we're going to move into some storage stuff.
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We're going to look at monitoring
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disk space and looking at disk latency.
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We're going to investigate the different types
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of IO schedulers and
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also see how we can prepare some storage issues.
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Then we're going to move into CPU and
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system related issues so we're going to
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monitor CPU load average,
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and troubleshoot CPU issues.
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We'll look at some memory concepts,
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learn about swapping,
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we'll investigate memory issues and finally,
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we'll wrap up by seeing how we can
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recover a lost root password.
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In this lesson, we covered
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the system troubleshooting objectives that are on
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the Linux plus exam and we saw
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how the concepts in this module,
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Module 20 are related to those objectives.
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Thanks so much for being here and I look
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forward to seeing you in the next lesson.
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