Linux for System Administrators (LFS301)

Introduction

• Linux Foundation
• Linux Foundation Training
• Linux Foundation Certifications
• Laboratory Exercises, Solutions and Resources
• E-Learning Course: LFS201
• Distribution Details
• Labs

Linux Filesystem Tree Layout

• Data Distinctions
• FHS Linux Standard Directory Tree
• root (/) directory
• /bin
• /boot
• /dev
• /etc
• /home
• /lib and /lib64
• /media
• /mnt
• /opt
• /proc
• /sys
• /root
• /sbin
• /srv
• /tmp
• /usr
• /var
• /run
• Labs

processes

• Programs and Processes
• Process Limits
• Creating Processes
• Process States
• Execution Modes
• Daemons
• niceness
• Libraries
• Signals
• Labs

Package Management Systems

• Software Packaging Concepts
• RPM (Red Hat Package Manager)
• DPKG (Debian Package)
• Revision Control Systems
• Labs

Package Installers

• Package Installers
• yum
• zypper
• APT
• Labs

System Monitoring

• System Monitoring
• Process Monitoring
• Memory Monitoring and Tuning
• Network Monitoring
• I/O Monitoring
• I/O Scheduling **
• System Log Files
• sar **
• Labs

Linux Filesystems

• Filesystem Basics
• Virtual Filesystem (VFS)
• Available Filesystems
• Filesystem Concepts
• Disk and Filesystem Usage
• Extended Attributes
• ext4
• XFS **
• btrfs **
• Labs

Partitioning and Formatting Disks

• Common Disk Types
• Disk Geometry
• Partitioning
• Naming Disk Devices
• Sizing up partitions
• Partition table editors
• Labs

More on Linux Filesystems

• Creating and formatting filesystems
• Checking and Repairing Filesystems
• Mounting filesystems
• automount
• Swap
• Filesystem Quotas **
• Labs

Encrypting Disks

• Filesystem Encryption
• LUKS
• Using an Encrypted Partition
• Labs

LVM and RAID

• Logical Volume Management (LVM)
• Volumes and Volume Groups
• Working with Logical Volumes
• Resizing Logical Volumes
• LVM Snapshots **
• RAID **
• RAID Levels **
• Software RAID Configuration **
• Labs

Kernel Services and Configuration

• Kernel Overview
• Kernel Configuration
• sysctl
• Kernel Modules
• Module Utilities
• Module Configuration
• udev and Device Management
• Labs

Virtualization Overview

• Introduction to Virtualization
• Emulation
• Hypervisors
• libvirt
• QEMU
• KVM
• Labs

Containers Overview

• Containers
• Docker
• Docker Commands
• Labs

User and Group Account Management

• User Accounts
• Management
• Passwords
• Restricted Shells and Accounts **
• The root Account
• Group Management
• SSH
• PAM (Pluggable Authentication Modules)
• Authentication Process
• Configuring PAM
• LDAP Authentication **
• File Permissions and Ownership
• Labs

Networking

• IP Addresses
• Hostnames
• Network Devices
• ip and ifconfig
• Network Configuration Files
• Network Manager
• Routing
• DNS and Hostname Resolution
• Network Diagnostics
• Labs

Firewalls

• Firewalls
• Interfaces
• firewalld
• Zones
• Source Management
• Service and Port Management
• Labs

System Startup and Shutdown

• Understanding the Boot Sequence
• System Configuration Files in /etc
• Shutting down/Rebooting the System
• The Grand Unified Boot Loader
• GRUB Configuration Files
• The init Process
• systemd
• SysVinit Startup **
• chkconfig and service **
• Upstart **
• Labs

Backup and Recovery Methods

• Backup Basics
• cpio **
• tar
• Compression: gzip, bzip2 and xz and Backups
• dd
• rsync
• dump and restore **
• mt **
• Backup Programs **
• Labs

Linux Security Modules

• Linux Security Modules
• SELinux
• AppArmor
• Labs

Local System Security

• Local System Security
• Creating a Security Policy
• Updates and Security
• Physical Security
• Filesystem Security
• Labs

Basic Troubleshooting and System Rescue

• Troubleshooting Overview
• Things to Check: Networking
• Boot Process Failures
• Filesystem Corruption and Recovery
• Virtual Consoles
• Rescue Media and Troubleshooting
• System Rescue and Recovery
• Labs