SUMMARY.md

Summary

Introduction

• Essential Commands - 25%

  • Log into local & remote graphical and text mode consoles
  • Search for files
  • Evaluate and compare the basic file system features and options
  • Compare and manipulate file content
  • Use input-output redirection
  • Analyze text using basic regular expressions
  • Archive, backup, compress, unpack, and uncompress files
  • Create, delete, copy, and move files and directories
  • Create and manage hard and soft links
  • List, set, and change standard file permissions
  • Read, and use system documentation
  • Manage access to the root account

• Operation of Running Systems - 20%

  • Boot, reboot, and shut down a system safely
  • Boot or change system into different operating modes
  • Install, configure and troubleshoot bootloaders
  • Diagnose and manage processes
  • Locate and analyze system log files
  • Schedule tasks to run at a set date and time
  • Verify completion of scheduled jobs
  • Update software to provide required functionality and security
  • Verify the integrity and availability of resources
  • Verify the integrity and availability of key processes
  • Change kernel runtime parameters, persistent and non-persistent
  • Use scripting to automate system maintenance tasks
  • Manage the startup process and services
  • List and identify SELinux/AppArmor file and process contexts
  • Manage software
  • Identify the component of a Linux distribution that a file belongs to

• User and Group Management - 10%

  • Create, delete, and modify local user accounts
  • Create, delete, and modify local groups and group memberships
  • Manage system-wide environment profiles
  • Manage template user environment
  • Configure user resource limits
  • Manage user privileges
  • Configure PAM

• Networking - 12%

  • Configure networking and hostname resolution statically or dynamically
  • Configure network services to start automatically at boot
  • Implement packet filtering (iptables, firewalld or ufw)
  • Start, stop, and check the status of network services
  • Statically route IP traffic
  • Synchronize time using other network peers

• Service Configuration - 20%

  • Configure a caching DNS server
  • Maintain a DNS zone
  • Configure email aliases
  • Configure SSH servers and clients
  • Restrict access to the HTTP proxy server
  • Configure an IMAP and IMAPS service
  • Query and modify the behavior of system services at various operating modes
  • Configure an HTTP server
  • Configure HTTP server log files
  • Configure a database server
  • Restrict access to a web page
  • Manage and configure containers
  • Manage and configure Virtual Machines

• Storage Management - 13%

  • List, create, delete, and modify physical storage partitions
  • Manage and configure LVM storage
  • Create and configure encrypted storage
  • Configure systems to mount file systems at or during boot
  • Configure and manage swap space
  • Create and manage RAID devices
  • Configure systems to mount file systems on demand
  • Create, manage and diagnose advanced file system permissions
  • Setup user and group disk quotas for filesystems
  • Create and configure file systems

• Bonus/Miscellanea - 0%

  • bash
  • git
  • Repair the GRUB from live CD or USB stick
  • Install a CA certificate
  • Create a self-signed SSL certificate for Apache web server
  • Debugging TLS handshake issues
  • DNS essentials
  • Network-Manager
  • SSH-tunneling
  • Debugging corrupted character encoding issues
  • How to test a microphone
  • Automate login via SSH
  • How to fix low screen resolution
  • Non-Free Firmware for Debian
  • How to fix Nvidia graphics card problems
  • Recover from a failed installation
  • Mapping Hosts and Ports Locally
  • Tips & tricks

• References