LFS301 Linux für Administratoren

Linux system administration is one of the most in-demand skills in IT. Whether you're looking for expert test prep for the Linux Foundation Certified System Administration certification, need training to help start a new Linux IT career, transition to Linux from another platform, or you're just brushing up on your sysadmin skills, this course will teach you what you need to know.

This course gives you all the skills and information you need to pass the LFCS exam and work as a professional Linux system administrator.

In this course you’ll learn:

How to administer, configure and upgrade Linux systems running one of the three major Linux distribution families: Red Hat, SUSE, Debian/Ubuntu.
How to master the tools and concepts you’ll need to efficiently build and manage an enterprise Linux infrastructure.
How to use state-of-the-art system administration techniques in real-life scenarios via practical labs.
And more.

Voraussetzungen

This course is designed to provide students with the necessary skills and abilities to work as a professional Linux system administrator. Students should have basic knowledge of Linux and its most common utilities and text editors.

Inhalt

Introduction

Linux Foundation
Linux Foundation Training
Laboratory Exercises
Distribution Details
Obtaining Class Solutions and Resources
Registration

System Startup and Shutdown

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

Linux Filesystem Tree Layout

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

Kernel Services and Configuration

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

Partitioning and Formatting Disks

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

Linux Filesystems

Some Notes About Filesystems
Virtual Filesystem (VFS)
Filesystem Concepts
Disk and Filesystem Usage
Extended Attributes
ext4
XFS
btrfs
Creating and formatting filesystems
Checking and Repairing Filesystems
Mounting filesystems
Swap
Filesystem Quotas

RAID and LVM

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

Processes

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

Package Management Systems

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

Package Installers

Package Installers
yum
zypper
APT

User and Group Account Management

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

Backup and Recovery Methods

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

Networking

IP Addresses
Hostnames
Configuring Network Interfaces
Routing
Name Resolution
Network Diagnostics

Firewalls

Firewalls
Interfaces
firewalld
Zones
Source Management
Service and Port Management

Local System Security

Local System Security
Creating a Security Policy
Updates and Security
Physical Security
Filesystem Security
Linux Security Modules

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