Linux Administration Fundamentals

Kursinhalt

Introduction

• Very brief outline of the history of Linux
• The Linux operating system
• Log in to the shell

Command line

• Structure of the command line
• Tips for using and editing the command line
• Save time with the history
• Automatic completion of commands and file names
• Get help: man

Files and directories

• Structure of file and path names
• List, create and remove directories
• Create and remove files
• Copy, move and rename files
• Wildcards: * and ?
• The meaning of special symbols
• Symbolic links (What is this? The command ln)

Text files

• Display content of text files with cat and less
• Compare text files with diff
• The emacs-like editor jmacs
• The classical Unix editor vi

Search and find

• Search for texts in text files with grep
• Search for files with find
• The Linux File Hierarchie Standard: how to organize directories

Input-/output redirection, filters, pipes

• The classical way: join shell commands with pipes
• Clever tricks for using pipes
• Join commands with shell substitution (e.g. automatically insert the date into a filename)

Backup with tar and gzip

• Archive directories with the standard tool tar
• Compress files and archives with gzip

Users, groups and permissions

• The Linux way: users and groups
• Commands for managing users and groups useradd, userdel, groupadd, etc
• File attributes and file permissions

Hard disks, partitions and file systems

• How Linux manages devices: the directory /dev
• Create hard disk partitions with fdisk
• Using file systems e.g. ext3, reiserfs, smbfs/cifs etc
• Commands for managing the file system
• The file /etc/fstab

Processes

• How Linux manages processes
• List processes with ps, top and pstree
• Stop processes with kill and killall
• Start and manage background processes (job control of the BASH)

Boot process and cron

• Booting Linux in detail
• How to customize the boot process
• Starting and stopping system services
• Automatically perform routine tasks using cron

Network basics

• Ethernet and LAN in Linux
• Setting up network cards, Ethernet diagnostics
• Setting up IP addresses
• Routing with Linux, routing diagnosis, the modern command ip route
• Diagnose problems with routing ping, traceroute and other methods
• Resolve host names: /etc/hosts and /etc/resolv.conf

NFS server and client

• NFS (= Network File System) basics
• Share directories
• Mount NFS shares from other machines
• Troubleshooting NFS

SSH - SecureShell

• Remote log ins - secure and fast
• Copy files via SSH
• Run automatically Linux commands on remote machines via SSH without entering a password

SAMBA server and client

• SAMBA basics
• Setting up a SAMBA server for file sharing with Windows clients
• Anonymous read access without passwords
• Browsing (search for computers and shares)
• Access Windows shares from Linux

Webserver Apache

• Apache, www and HTTP basics
• Install a fully functional Apache webserver
• Global configuration
• Configure and evaluate error and access logs
• Troubleshooting