[LiveLessons / Pearson / O\'Reilly Media] Linux Troubleshooting: Red Hat EX342 by Sander van Vugt [2018, ENG + Sub]

Содержание

Lesson descriptions
Lesson 1
In Lesson 1, Troubleshooting Basics, troubleshooting in general will be discussed, specifically troubleshooting methodology.
Lesson 2
Lesson 2, Systems Monitoring, explains how to find out what's happening in the Linux system. Logging and auditing, as well as some other solutions that can be used to track what's happening will be discussed.
Lesson 3
In Lesson 3, Troubleshooting Boot Issues, investigating problems that are related to the boot procedure is the primary focus. The boot procedure will be summarized and the different troubleshooting modes are discussed. The differences between BIOS- and UEFI-based systems, and how that is going to affect troubleshooting efforts will be covered. Lastly, systemd, and how to reset the root password will be explained.
Lesson 4
Lesson 4, Managing Hardware Issues, will explore hardware management. Learning how drivers and kernel modules are involved in addressing hardware the right way, as well as the options there are in case the valid drivers are not available are covered. How hardware is dealt with in a KVM environment is also explained.
Lesson 5
In Lesson 5, Managing Storage Issues, the storage stack, and the different things that can go wrong while dealing with storage, will be explored. Partitions, file systems, Logical Volumes, LUKS-encrypted devices, as well as iSCSI drivers, are included. Lastly, dealing with issues in a virtualized environment is discussed.
Lesson 6
Lesson 6, Troubleshooting Networking, will have a look at networking and its different features. Driver issues, DNS issues, and connectivity issues will be covered, as well as how to analyze network traffic and check for service availability. Lastly, analyzing how to deal with firewalling issues will be discussed.
Lesson 7
In Lesson 7, Managing Software Issues, software packages and the things that you can do if problems arise in that area will be covered. Dealing with dependency issues, corrupted package databases, and how to identify changed files are explained.
Lesson 8
Lesson 8, Managing Application Issues, will explain how a typical application stack is organized, and will discuss what can go wrong with libraries that are used by applications. Application debugging and memory leaks will also be covered.
Lesson 9
In Lesson 9, Managing Security Issues, an overview of different security-related items in Linux will be discussed, including possible issues with Linux permissions, PAM, SELinux, as well as authentication and remote login issues.
Lesson 10
Lesson 10, Troubleshooting Kernel Issues, covers how to configure your kernel to log crash dumps, and an introduction to kernel debugging using strace will be provided.
Lesson 11
In Lesson 11, Fixing Performance Problems, learning how to analyze different aspects of Linux performance, and how to identify critical performance bottlenecks will be the primary focus.
Lesson 12
Lesson 12, Sample Exam, is exactly as it sounds. In this lesson your knowledge will be tested through a series of scenarios. If you succeed in fixing all solutions, you're probably ready to take Red Hat exam342

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