Introduction
- Welcome
- Before We Begin...
- Troubleshooting Basics: Your Most Powerful Tool
- Take The First Step: Scenario 1
- Scenario 2: No Internet
- Scenario 3: Intermittent Loss of Power
Generic Troubleshooting
- Using 'dmesg' to read the kernel ring buffer
- Reading common log files
- Viewing Basic Hardware Information in Ubuntu Server
Networking
- Networking Basics
- Releasing and Renewing a DHCP Lease
- Static IP Configurations and Adapter Resets
- WIreless Configurations
- Verifying and Changing the Hostname (No Reboot Required!)
- Calling Up the ARP (Address Resolution Protocol) Table
- Using 'lshw' to View Network Adapter Information
- Testing Download Speed with 'wget'
- Testing Latency, Download, and Upload Speeds with 'speedtest-cli'
Software Installation Errors
- Errors Installing from Source Code
- Using 'apt-get' and 'dpkg' to Fix Broken Packages
- How to Completely Remove a Package (The Right Way!)
- Additional Options in 'apt-get'
Testing Additional Hardware Components
- Motherboard Troubleshooting
- Memtest86+ for Testing RAM
- Using 'memtester' to Test RAM (No Reboot Required)
- CPU Stress Testing with 'mprime'
- Testing a PSU
- Using 'fsck' to Check (and Repair!) Filesystem Errors
- Checking the S.M.A.R.T. Status of HDDs in Ubuntu Server
Questions & Answers
- About This Section
