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ENTERPRISE LINUX SYSTEMS ADMINISTRATION
Linux Training Overview

Intended for students already comfortable with working in the Unix environment, this in-depth course helps students acquire the variety of skills needed to set up and maintain Unix computers. The class covers subjects ranging from initial installation of Linux to day-to-day administrative tasks such as management of user accounts and disk space, and even imparting the troubleshooting skills future system administrators will need to cope with unexpected behavior.

Courseware supports latest versions of Red Hat Enterprise Linux and Fedora Core.


Linux Training Prerequisites

Individuals wishing to take this class should already have a solid grounding in UNIX concepts. Fundamentals such as an understanding of the Linux filesystem, process management, and the ability to manipulate and edit files is considered a must and will not be covered in class. An understanding of network concepts, and the TCP/IP protocol suite is helpful.

Linux Training Course duration

40 Hours

Linux Training Course outline

Section 1 Linux Installation

  • Pre-Installation Considerations
  • Hardware Compatibility
  • Multi-OS Booting
  • Partition Considerations
  • Partition Planning
  • Filesystem Considerations
  • Journaled Filesystems
  • Installation Choices
  • CD-ROM Installation
  • Network Installation
  • Local Hard Drive Installation
  • FC Personal Desktop Class
  • FC Workstation Class
  • FC Server Class
  • FC Custom Class
  • Install Program Interface
  • Installation Diagnostics
  • Language Selection
  • Keyboard Configuration
  • Fedora Install Options
  • Automatic Partitioning
  • Partitioning with Disk Druid
  • Installing a Boot Loader
  • Network Configuration
  • Security Configuration
  • Language Support Selection
  • Root Password Configuration
  • Time Zone Configuration
  • Package Group Selection
  • Installing Packages
  • Install Finished
  • First Boot
  • Finalizing GUI Configuration
  • Video Card Configuration
  • Monitor Configuration
  • Authentication Configuration
      Lab 1 - Installation
  • Perform a GUI network NFS based workstation install
  • Configure LVM and Software RAID at installation time
Section 2 PC Hardware and Linux
  • Kudzu
  • PC System Hardware
  • USB Devices and Configuration
  • Linux Device Files
  • Configuring New Hardware
  • Kernel Modules
  • Handling Module Dependencies
  • Configuring Kernel via /proc
  • Kernel Hardware Info - /sys/
  • /sys/ structure
      Lab 2 - PC Hardware and Linux
  • Enable the Magic-SysReq key
  • Use system-config-proc to disable ICMP broadcast
Section 3 Post-Install System Configuration
  • Configuration Utilites and Files
  • Network Services
  • Managing System Time and Network-Wide Time
  • Continual Time Sync - NTP
  • Configuring NTP Clients
  • Managing Software
  • RPM Features, Architecture, and Package Files
  • Working With RPMs
  • Querying and Verifying with RPM
  • Package Dependencies
  • Intro to YUM
  • Using the YUM command
  • Configuring YUM
  • YUM Repositories and Resources
  • Configuring Printers
  • Common UNIX Printing System
  • Defining a Printer
  • Kickstart
  • Creating Kickstart Files
  • Using Kickstart files
      Lab 3 - Post-Install Config
  • Answer some questions about the system using RPM queries
  • Install zsh using RPM
  • Troubleshoot and repair a package using RPM verification
  • Upgrade the kernel using RPM
  • Install the XFCE desktop environment using YUM
  • Create and test a custom YUM repository
  • Crate a custom YUM repository for installing software
  • Setup CUPS print queues using: system-config-printer, lpadmin, and the CUPS web interface
  • Modify a kickstart file using a text editor
  • Create a kickstart file using ksconfig
  • Start an install using a pre made kickstart file
Section 4 Boot Process and SysV Init
  • Booting Linux on PCs
  • LILO Options
  • GRUB Configuration
  • Kernel Boot Parameters
  • /sbin/init
  • System init Styles
  • /etc/inittab
  • rc.sysinit
  • /etc/init.d and /etc/rcX.d
  • rc
  • Typical SysV Init Script
  • The rc.local file
  • Managing Daemons
  • Controlling Startup Services
  • Shutdown and Reboot
      Lab 4 - Boot Process
  • Use GRUB to boot into single user mode
  • Modify kernel/init parameters in GRUB
  • Explore the GRUB interface
  • Attach to the /boot filesystem and display the contents of the grub/grub.conf file
  • Set a GRUB password
  • Modify the lilo.conf creating a new stanza that passes kernel parameters
Section 5 User/Group Administration and NFS
  • User/Group Concepts
  • User Private Group Scheme
  • User Administration
  • Modifying Accounts
  • Group Administration
  • Password Aging
  • Default User Files
  • Controlling Logins
  • PAM, PAM Services, and PAM Control Statements
  • su, Wheel, and sudo
  • DS Client Configuration
  • File Sharing via NFS
  • NFS Server Configuration
  • NFS Clients
  • Automounting Filesystems
      Lab 5 - User Administration
  • Customize /etc/skel
  • Add new users and manage password aging
  • Set up wheel group behavior for su
  • Configure a project directory to take advantage of the user private group scheme
  • Configure autofs to access an NFS export
  • Configure NIS client as part of the domain
  • Configure autofs to mount home directories
  • Switch to using LDAP for authentication
  • Setup an NFS server and export directories
Section 6 Filesystem Administration
  • Partition Tables
  • File System Creation
  • Mounting File Systems
  • Filesystem Maintenance
  • Persistent Block Devices
  • udev
  • Resizing Filesystems
  • File Deletion and Undeletion
  • Swap
  • Disk Usage
  • Configuring Disk Quotas
  • Checking Disk Quotas
  • Filesystem Attributes
  • File Access Control Lists
  • Manipulating FACLs
  • Viewing FACLs
  • Backing Up FACLs
  • Backup Hardware, Software, and Examples
  • Tape Libraries
      Lab 6 - Filesystem Admin
  • Create and activate additional swap space
  • Configure and test disk quotas on the /tmp filesystem
  • Backup files using tar and cpio over ssh
  • Backup files using rsync over ssh
  • Backup and restore files with dump and restore
  • Create and test an ISO9660 image
Section 7 - LVM and Raid
  • Logical Volume Management
  • Implementing LVMs
  • Manipulating VGs and LVs
  • Advanced LVM Concepts
  • Graphical LVM Tool
  • RAID Concepts, Tools, and Implementation
  • RAID Monitoring/Control
      Lab 7 - RAID and LVM
  • Use command line tools to partition free space
  • Configure software RAID-5 with a hot spare
  • Fail a member device of the array, examine the automatic recovery using the hot-spare
  • Fail another member device testing RAID-5
  • Remove failed member devices, add new devices to array, examine the recovery of array
  • Partition the drive and create LVM Physical Volumes
  • Create a LVM Volume Group and Logical Volume to hold website content
  • Verify the operation of LVM snapshots
  • Extend and grow the Logical Volume and the ext3 filesytem
Section 8 Task Automation & Process Accounting
  • Automating Tasks
  • at / batch
  • at Access Control
  • cron, crontab, and crontab Format
  • /etc/cron.* Directories
  • anacron
  • Viewing Processes
  • Managing Processes
  • System Logging
  • /etc/syslog.conf
  • Log Management
  • Log Anomaly Detector
  • Process Accounting
  • Using Process Accounting
  • Limiting System Resources
  • System Status - Memory, I/O, and, CPU
  • sar
      Lab 8 - Cron & Process Admin
  • Create and edit user cron jobs
  • Add a system-wide cron task to /etc/cron.hourly
  • Install and configure process accounting
  • Enable and set process limits
  • Remove cron jobs created in previous tasks
Section 9 Client Networking
  • Linux Network Interfaces
  • Ethernet Hardware Tools
  • Runtime configuration change
  • Configuring Routing Tables
  • ARP
  • Advanced Configuration
  • Starting and Stopping Interfaces
  • Virtual IP Interfaces
  • Enabling IPv6
  • Interface Bonding
  • 802.1q VLANS
  • Network Profiles and ifup
  • IP Stack Configuration
  • DNS Clients
  • Network Services via DHCP
  • DHCP Clients
  • dhcpd.conf Syntax
  • Red Hat Configuration Tools
  • Network Diagnostics
  • Point-to-Point Protocol
  • PPP Configuration Files, Chat, and Secrets Files
      Lab 9 - Client Networking
  • Enable static configuration
  • Configure a virtual interface and verify connectivity through the new interface
  • Verify Link-Local IPv6 connectivity
  • Configure and test Site-Local connectivity
Section 10 The X Window System
  • The X Window System
  • Xorg
  • Configuring X
  • X Fonts
  • Using Fonts
  • Display Manager Selection
  • XDMCP
  • Using Unix Remotely
  • X Security
  • Specialized X Servers
  • Starting X Apps Automatically
      Lab 10 - X
  • Change your display manager to gdm
  • Enable XDMCP to support remote desktop login
  • Configure VNC to accept incoming connections
  • Launch a program by creating a script in the /etc/X11/xinit/xinitrc.d/ directory
  • Start a custom X session by modifying the ~/.xinitrc file
  • Secure X for use in a public kiosk
  • Test and verify that the special key sequences are disabled
Section 11 Security Concepts
  • Security Concepts
  • Tightening Default Security
  • Staying Current
  • Using up2date
  • Security Advisories
  • SELinux Secuity Framework
  • Choosing a SELinux Policy
  • SELinux Commands
  • Booleans
  • Graphical Policy Tools
  • inetd / xinetd
  • Xinetd Features
  • TCP Wrappers
  • hosts.allow & hosts.deny
  • hosts.* Syntax Shortcuts
  • Advanced TCP Wrappers
  • Basic Firewall Activation
  • Stateful Packet Filter: iptables
  • Netfilter Rule Syntax
  • Targets
  • Common match_specs
  • Stateless Firewall Example
  • Connection Tracking
  • Stateful Firewall Example
      Lab 11 - Security Lab
  • Examine current system
  • Configure Xinetd to provide a variety of limits for connecting to services
  • Configure a sensor to log connection attempts
  • Use TCP Wrappers to secure various services
  • Use the Netfilter stateful packet filtering to better protect the system
Section 12 Linux Kernel Compilation
  • Why Compile?
  • Getting Kernel Source
  • Preparing to Compile
  • Configuring the Kernel
  • General Options
  • Disk Configuration
  • Network Configuration
  • Expansion Port Configuration
  • Multimedia Configuration
  • Kernel Documentation
  • RH 2.4 Kernel Extensions
  • Compiling the Kernel
  • Compile and Install Modules
  • Installing the Kernel
  • Tips and Tricks
      Lab 12 - Kernel Compilation
  • Build, test, and install a new driver for the currently running kernel
  • Patch the Linux kernel source to add support for a new device
  • Compile and install a custom Linux kernel
Section 13 Troubleshooting
  • Basic Troubleshooting
  • Gathering Information
  • Information from df and mount
  • Information from Log Files
  • Information Regarding Network Settings
  • Information from ps, chkconfig, dmesg, w, and netstat
  • Useful Debugging Aids
  • Common Problems
  • Incorrect File Permissions
  • Inability To Boot
  • Corrupt File Systems
  • Typos in Configuration Files
  • Disks Full?
  • Runaway Processes
  • Shared Libraries
  • The Rescue Environment
      Lab 13 - Troubleshooting
  • Explore troubleshooting and disaster recovery on non-mission-critical machines
  • Practive troubleshooting common system and daemon errors

 
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