Certificate Authentication

Introduction

• Distributions
• Executing commands from the command line

Working with files and directories

• The structure of the file system
• Creating and deleting files and directories
• Copying, moving and renaming files and directories
• Viewing file content
• Searching
• Packing and unpacking files

Editing files

• 'nano' editor
• Editing from the command line with the 'sed' editor

Working in the shell

• 'bash' shell
• Stream redirection
• Initialization files

File system permissions

• The concept of rights and ownership
• Viewing and verifying permissions
• Absolute and symbolic notation
• Changing permissions with 'chmod'
• Changing ownership with 'chown'

Working with processes

• Viewing and searching for processes
• Process management

User management

• User accounts
• Security and password policy
• Groups
• User privileges

Network connections

• Making remote connections using 'ssh'
• Downloading files
• Transferring files using 'scp'

System maintenance

• Resource monitoring
• Task management
• Package management using 'apt' and 'yum'