Udemy – Linux Troubleshooting Course with Practical Examples
English | Size: 7.55 GB
Category: Tutorial
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
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