Account and Security Administration

• LPI Objectives Covered
• User and Group Concepts
• User Private Group Scheme
• User Administration
• Modifying Accounts
• Group Administration
• Password Aging
• Limiting Logins
• Default User Files
• su and Wheel
• sudo
• Setting Resource Limits via ulimit
• pam_limits.so

Customizing the Shell and Writing Simple Scripts

• LPI Objectives Covered
• Bourne sh: Configuration Files
• Script Execution
• bash: Configuration Files
• Shell and Environment Variables
• Bash Shell Options
• bash: "shortcuts"
• bash: prompt
• Nesting Commands
• Shell Script Strengths and Weaknesses
• Example Shell Script
• Positional Parameters
• Input & Output
• Doing Math
• Comparisons with test
• Exit Status
• Conditional Statements
• Flow Control: case
• The for Loop
• The while and until Loops
• Functions

Automating Tasks

• LPI Objectives Covered
• Automating Tasks
• at/batch
• cron
• The crontab Command
• crontab Format
• /etc/cron.*/ Directories
• Anacron

Networking

• LPI Objectives Covered
• IPv4 Fundamentals
• TCP/UDP Fundamentals
• Enabling IPv6
• Linux Network Interfaces
• Ethernet Hardware Tools
• Configuring Routing Tables
• Network Configuration with ip Command
• Starting and Stopping Interfaces
• system-config-network-{tui,cmd}
• SUSE YaST Network Configuration Tool
• DNS Clients
• Network Diagnostics
• Information from netstat and ss
• nmap
• Netcat

X Window System

• LPI Objectives Covered
• The X Window System
• X Modularity
• X.Org Drivers
• Starting X
• Configuring X Manually
• Automatic X Configuration
• Automatic X Configuration – SLES
• Xorg and Fonts
• Installing Fonts for Modern Applications
• Installing Fonts for Legacy Applications
• The X11 Protocol and Display Names
• Display Managers and Graphical Login
• X Access Control
• Remote X Access (historical/insecure approach)
• Remote X Access (modern/secure approach)
• Customizing X Sessions
• Starting X Apps Automatically

Accessibility and Localization

• LPI Objectives Covered
• GNOME Accessibility Support
• Internationalization & Localization
• Character Encodings
• Locales
• Setting the Time Zone

Time, Logging, and Printing

• LPI Objectives Covered
• Hardware and System Clock
• Managing Network-Wide Time
• Continual Time Sync with NTP
• Configuring NTP Clients
• System Logging
• /etc/rsyslog.conf
• Log Management
• Common UNIX Printing System
• Defining a Printer
• Standard Print Commands

MTA and SQL Fundamentals

• LPI Objectives Covered
• Popular SQL Databases
• SELECT Statements
• INSERT Statements
• UPDATE Statements
• DELETE Statements
• JOIN Clauses
• SMTP
• SMTP Terminology
• SMTP Architecture
• Sendmail Architecture
• Sendmail Components
• Postfix Features
• Postfix Architecture
• Postfix Components

Host Security and Encryption

• LPI Objectives Covered
• Controlling Logins
• Xinetd
• TCP Wrappers
• /etc/hosts.{allow,deny} Shortcuts
• Advanced TCP Wrappers
• Secure Shell
• ssh and sshd Configuration
• Accessing Remote Shells
• Transferring Files
• Alternative sftp Clients
• SSH Key Management
• ssh-agent
• GPG – GNU Privacy Guard