What you'll learn

Troubleshoot IT and Linux related issues with effective tools and techniques
Save time when troubleshooting is done with the correct approach
Manage your company's IT environment and respond to critical issues smoothly
Diagnose and Repair Common Networking and Filesystem Errors

Requirements

Some basic knowledge of Linux command line
A PC or MAC
My recommendation is take my Linux Course if you have never worked with Linux before. "Complete Linux Training to Get Your Dream IT Job"

Description

Maintain a reliable and highly available Linux server infrastructure, and reduce costly downtime. In this Linux troubleshooting training course, you gain the expertise to effectively diagnose and fix common and complex Linux server configuration and administrations issues, and learn to apply those skills in production environment

Linux Troubleshooting Course

Section 1 - Introduction and Course Overview

* What is this course about

* Syllabus Overview

* Download Syllabus

Section 2 - Troubleshooting Best Practices

* Follow Policies and Standards

* Documentation or Ticketing Process

* Patience To Work With the Users / Group

* Get Online Help

* Understanding the Issue Before Making a Decision

* Involve Vendor If Needed

* Log Monitor

* Be Honest and Ask Questions

Section 3 - Lab Setup

* What is VirtualBox?

* Installing Oracle VirtualBox

* Creating First Virtual Machine

* Linux Installation

Section 4 - Conceptual Troubleshooting

* Who is Who?

* Cannot Access Server

* Cannot Install Linux

* Linux Virtual Machine Running Slow

Section 5 - System Access Troubleshooting

* Server is Not Reachable

* Cannot Connect to a Website or an Application

* Cannot SSH as root or a Specific User

* Firewall Issue

* Terminal Client is not working

* Cannot Connect using Putty to a VirutalBox VM

Section 6 - FileSystem Troubleshooting

* Cannot cd into a Directory

* Cannot Open a File or Run a Script

* Having Trouble Finding Files and Directories

* Cannot Create Links

* Cannot Write to a File

* Cannot Delete, Copy, Move or Rename a File

* Cannot Change File Permissions or View Other Users Files

* Disk Space Full or Add More Disk Space

* Add Disk and Create Standard Partition

* Add Disk and Create Standard Partition

* Add Disk and Create LVM Partition

* Extend Disk with LVM

* How to Delete Old Files

* FileSystem is Corruption

* Corruption in /etc/fstab

* Script to Delete Old Files

* Handouts

Section 7 - System Administration Troubleshooting

* Running Out of Memory

* Add Swap Space

* System Rebooted or Process Restarted

* Unable to get IP Address

* IP Assigned but not Reachable

* Having Trouble using vi Editor

* Cannot Run Certain Commands

* Cannot Change Password

* User Account has no Home Directory

* How to Change Every Instance of a Word in a File

* How to Use sed Command

* How to Kill a User Terminal or Process

* Recover Root Password

* SOS Report

* List of Users Logged in by Date

* System is Running Slow

Section 8 - System Recovery

* Recover Virtual System

* Recover Physical System

* Disaster Recovery

Section 9 - Bonus Section

* What is FileSystem

* File Ownership Commands (chown, chgrp)

* Files and Directory Permissions (chmod)

* System Logs Monitor (/var/log)

* Soft and Hard Links

* curl and ping commands

* Programs and Service Management

* Processes and Jobs (systemctl, ps, kill, top, crontab, at)

* New Network Commands

* Script to Delete Old Files

* Difference Between CentOS/Redhat 5, 6 and 7

Who this course is for:

A beginner in IT field to troubleshoot daily isssues
An experienced system administrator or engineer to improve existing skill