Linux

This course covers fundamental Linux skills such as file management and manipulation, text processing, command line use, package management, filesystems, hardware, and many more. Students will feel confident taking the LPI LPIC-1 102 exam with in classroom assessments and practice exams.

This course is validated against the v4.0 objectives.

Topics covered include:

1. ACCOUNT AND SECURITY ADMINISTRATION
2. CUSTOMIZING THE SHELL AND WRITING SIMPLE SCRIPTS
3. AUTOMATING TASKS
2. NETWORKING
4. X WINDOW SYSTEM
5. ACCESSIBILITY AND LOCALIZATION
6. LOG FILE ADMINISTRATION
7. SQL AND MTA FUNDAMENTALS
8. HOST SECURITY AND ENCRYPTION

This course covers more advanced Linux skills such as system management and networking. Students will feel confident taking the LPI LPIC-2 201 exam with in classroom assessments and practice exams.
Current Version: E00

Prerequisites:
LPIC-1 certification or LPI101 “LPIC-1 Exam Prep (Course 1)” and LPI102 “LPIC-1 Exam Prep (Course 2)”.

Course Outline:

1.    CAPACITY PLANNING

1.    LPI Objectives Covered

2.    Troubleshooting Resource Usage

3.    Gathering System Info

4.    Viewing Processes

5.    Process Management Tools

6.    Troubleshooting Processes: top

7.    uptime

8.    lsof and fuser

9.    System Status – Memory

10.  System Status – I/O

11.  System Status – CPU

12.  Performance Trending with sar

13.  Graphing SNMP Data with MRTG

14.  Nagios Overview

15.  Nagios Configuration

LAB TASKS

16.  Process Management and Job Control Basics

17.  Nagios (Web Interface)

2.    BOOT PROCESS AND SYSV INIT

1.    LPI Objectives Covered

2.    Booting Linux on PCs

3.    GRUB Configuration

4.    Boot Parameters

5.    /sbin/init

6.    System Init Styles

7.    Linux Runlevels

8.    /etc/inittab

9.    /etc/rc.d/rc.sysinit

10.  SUSE /etc/init.d/boot

11.  Runlevel Implementation

12.  Typical SysV Init Script

13.  The /etc/rc.local File

14.  The /etc/init.d/*.local Files

15.  Managing Daemons

16.  Controlling Service Startup

17.  Controlling Service Startup

18.  Shutdown and Reboot

LAB TASKS

19.  Boot Process

20.  GRUB Command Line

21.  Basic GRUB Security

22.  Recovering Damaged MBR

23.  Introduction to Troubleshooting Labs

24.  Troubleshooting Practice: Boot Process

3.    SYSTEM RECOVERY AND BOOTLOADERS

1.    LPI Objectives Covered

2.    Diagnostic/Recovery Runlevels

3.    Rescue Procedures

4.    Recovery: mount & chroot

5.    Recovery Examples

6.    Recovery: Network Utilities

7.    GRUB 2

8.    LILO Options

9.    LILO Configuration

10.  SYSLINUX

11.  Network Booting with PXE

LAB TASKS

12.  Recovery Runlevels

13.  Recovering Damaged MBR

14.  Recover from Deleted Critical Files

15.  Using SUSE Auto Repair Mode

4.    LINUX KERNEL: COMPONENTS AND COMPILE

1.    LPI Objectives Covered

2.    Why Compile?

3.    Getting Kernel Source

4.    Preparing to Compile

5.    Configuring Kernel Compilation Options

6.    Available Kernel Compile Options

7.    Compiling the Kernel

8.    Install Compiled Kernel Modules

9.    Initial ramdisk

10.  Tips and Tricks

11.  Installing the Kernel

12.  Troubleshooting With GRUB

13.  Boot Process Troubleshooting

14.  Troubleshooting: Linux and Init

15.  Hardware Discovery Tools

16.  Configuring New Hardware with hwinfo

17.  Configuring Kernel Components and Modules

18.  Kernel Modules

19.  Handling Module Dependencies

20.  Kernel Modules Troubleshooting

21.  Configuring the Kernel via /proc/

22.  udev

LAB TASKS

23.  Adjusting Kernel Options

24.  Linux Kernel Driver Compilation

25.  Linux Kernel Compilation

5.    FILESYSTEM ADMINISTRATION

1.    LPI Objectives Covered

2.    Filesystem Support

3.    Mounting Filesystems

4.    Filesystem Table (/etc/fstab)

5.    AutoFS

6.    AutoFS Configuration

7.    Managing Optical Media

8.    Partitioning Disks with fdisk

9.    Partitioning Disks with parted

10.  Filesystem Creation

11.  Extended Filesystem Maintenance

12.  smartmontools

13.  Resizing Filesystems

14.  Managing an XFS Filesystem

15.  Swap

16.  File Encryption With encfs

17.  Linux Unified Key Setup (LUKS)

18.  Persistent Block Devices

19.  List Block Devices

LAB TASKS

20.  Accessing NFS Shares

21.  On-demand filesystem mounting with AutoFS

22.  Hot Adding Swap

23.  Creating ISO Images for Backups

24.  smartd and smartctl

25.  LUKS-on-disk format Encrypted Filesystem

6.    LVM & RAID

1.    LPI Objectives Covered

2.    Logical Volume Management

3.    Implementing LVM

4.    Creating Logical Volumes

5.    Manipulating VGs & LVs

6.    Advanced LVM Concepts

7.    system-config-lvm

8.    SLES Graphical Disk Tool

9.    RAID Concepts

10.  Array Creation with mdadm

11.  Software RAID Monitoring

12.  Software RAID Control and Display

LAB TASKS

13.  Creating and Managing a RAID-5 Array

14.  Creating and Managing LVM Volumes

7.    ADJUSTING STORAGE DEVICE ACCESS AND ISCSI

1.    LPI Objectives Covered

2.    Tuning with hdparm

3.    SCSI Devices

4.    Remote Storage Overview

5.    Remote Filesystem Protocols

6.    Remote Block Device Protocols

7.    iSCSI Architecture

This course covers more advanced Linux skills such as system management and networking. Students will feel confident taking the LPI LPIC-2 202 exam with in classroom assessments and practice exams.

Current Version: E00

Course Outline:
1. SECURITY CONCEPTS
2. SCANNING, PROBING, AND MAPPING VULNERABILITIES
3. PASSWORD SECURITY AND PAM
4. SECURE NETWORK TIME PROTOCOL (NTP)
5. KERBEROS CONCEPTS AND COMPONENTS
6. IMPLEMENTING KERBEROS

Prerequisites:
General computing knowledge and experience. No prior knowledge with Linux is required

The GL314 is designed to give Linux administrators experience with both common and uncommon system problems. The course is based on the idea that the best way to learn troubleshooting is to perform troubleshooting. Approximately 25% of class time is spent on lecture, leaving 75% for intensive lab content. Class starts with a discussion of effective troubleshooting technique. Tools and topics are gradually introduced over the course of the week. Students practice applying these tools and techniques in self-paced labs. Students can choose from over 120 scenarios organized by topic and difficulty. Because each scenarios is independent of the others, students can choose scenarios according to their interests and experience. Each scenario is designed to help students develop deeper understanding while exploring the problem. All scenarios includes optional hints designed to reflect a realistic troubleshooting process while only gradually revealing the solution. Students find the flexibility and challenge of this course very rewarding.

Current Version: H00

This course is designed for intermediate to advanced users. Students should have already taken the GL120, GL250 and GL275, or have equivalent knowledge. A short refresher for each topic will be presented, but will not be discussed in depth.

Course Outline:

1.    TROUBLESHOOTING METHODOLOGY

1.    The Troubleshooting Mindset

2.    Evaluating Possible Solutions

3.    Identifying and Implementing Change

4.    Define and Follow Policies

5.    Working with Others

6.    Finding Documentation

7.    Finding Help Online

2.    TROUBLESHOOTING TOOLS

1.    Common Troubleshooting Tools

2.    RPM Queries

3.    RPM Verification

4.    SRPM and spec Files

5.    Hardware Discovery Tools

6.    Configuring New Hardware with hwinfo

7.    strace and ltrace

8.    lsof and fuser

9.    ipcs and ipcrm

10.  iostat, mpstat, and vmstat

11.  Using hdparm to Measure

12.  Troubleshooting with the ip command

13.  Name Resolution

14.  ss/netstat and rpcinfo

15.  nmap

16.  Netcat

17.  tcpdump and wireshark

LAB TASKS

18.  Determining the System’s Configuration

19.  Troubleshooting with rpm

20.  Process Related Tools

21.  Network Tools

3.    RESCUE ENVIRONMENTS

1.    Diagnostic/Recovery

2.    Rescue Procedures

3.    Recovery: mount & chroot

4.    Recovery Examples

5.    Recovery: Network Utilities

LAB TASKS

6.    Recovery Runlevels

7.    Recovering Damaged MBR

8.    Recover from Deleted Critical Files

4.    TOPIC GROUP 1

1.    Linux Boot Process

2.    System Boot Method Overview

3.    systemd System and Service Manager

4.    Using systemd

5.    Booting Linux on PCs

6.    Troubleshooting With GRUB 2

7.    Boot Process Troubleshooting

8.    Troubleshooting: Linux and Init

9.    Process Management

10.  Process Management Tools

11.  Troubleshooting Processes: top

12.  Filesystem Concepts

13.  Filesystem Troubleshooting

14.  Backup Concepts

15.  Backup Troubleshooting

16.  Backup Troubleshooting

LAB TASKS

17.  Troubleshooting Problems: Topic Group 1

5.    TOPIC GROUP 2

1.    Networking Tools

2.    Linux Network Interfaces

3.    Networking Commands Review

4.    NetworkManager

5.    Networking Troubleshooting

6.    Networking Troubleshooting

7.    Virtual Interfaces/IP Aliases

8.    Network Teaming

9.    Xinetd Concepts

10.  Xinetd Troubleshooting

11.  TCP Wrappers Concepts

12.  TCP Wrappers Concepts

13.  TCP Wrappers Troubleshooting

14.  Netfilter/iptables Concepts

15.  Netfilter/iptables Troubleshooting

LAB TASKS

16.  Troubleshooting Problems: Topic Group 2

6.    TOPIC GROUP 3

1.    X11 Concepts

2.    X11 Server Operation

3.    X11 Troubleshooting

4.    System Logging

5.    systemd Journal

6.    systemd Journal’s journactl

7.    Secure Logging with Journal’s Log Sealing

8.    Rsyslog Concepts

9.    Syslog Troubleshooting

10.  RPM Concepts

11.  RPM Troubleshooting

12.  Common Unix Printing System (CUPS)

13.  CUPS Troubleshooting

14.  CUPS Troubleshooting

15.  at & cron

16.  at & cron Usage

17.  at & cron Troubleshooting

LAB TASKS

18.  Troubleshooting Problems: Topic Group 3

7.    TOPIC GROUP 4

1.    Users and Groups

2.    Users and Groups Troubleshooting

3.    PAM Concepts

4.    PAM Troubleshooting

5.    Filesystem Quotas

6.    Quotas Troubleshooting

7.    File Access Control Lists

8.    FACL Troubleshooting

9.    SELinux Concepts

10.  SELinux Troubleshooting

11.  SELinux Troubleshooting Continued

LAB TASKS

12.  Troubleshooting Problems: Topic Group 4

8.    TOPIC GROUP 5

1.    Kernel Modules

2.    Kernel Modules Troubleshooting

3.    Logical Volume Management

4.    Creating Logical Volumes

5.    LVM Deployment Issues

6.    VG Migration, PV Resizing & Troubeshooting

7.    Software RAID Overview

8.    RAID Troubleshooting

9.    SAN Multipathing

10.  Multipath Configuration

11.  Multipathing Best Practices

12.  LDAP and OpenLDAP

13.  Troubleshooting OpenLDAP

14.  NIS and NIS+ (YP)

15.  NIS Troubleshooting Aids

LAB TASKS

16.  Troubleshooting Problems: Topic Group 5

9.    TOPIC GROUP 6

1.    DNS Concepts

2.    DNS Troubleshooting

3.    DNS Troubleshooting

4.    Apache Concepts

5.    Apache Troubleshooting

6.    Apache Troubleshooting

7.    FTP Concepts

8.    FTP Troubleshooting

9.    Squid Concepts

Special attention is given to securing commonly deployed network services. At the end of the course, students have an excellent understanding of the potential security vulnerabilities — know how to audit existing machines, and how to securely deploy new network services.

Prerequisites:

This class covers advanced security topics and is intended for experienced systems administrators. Candidates should have current Linux or UNIX systems administration experience equivalent to the GL120 “Linux Fundamentals”, GL250 “Enterprise Linux Systems Administration”, and GL275 “Enterprise Linux Network Services”

Current Version: F00

This class covers advanced security topics and is intended
for experienced systems administrators. Candidates should have current Linux or UNIX
systems administration experience equivalent to the GL120 “Linux Fundamentals”,
GL250 “Enterprise Linux Systems Administration”, and GL275 “Enterprise Linux Network Services”

Topics covered include:

1. SECURITY CONCEPTS
2. SCANNING, PROBING, AND MAPPING VULNERABILITIES
3. PASSWORD SECURITY AND PAM
4. SECURE NETWORK TIME PROTOCOL (NTP)
5. KERBEROS CONCEPTS AND COMPONENTS
6. IMPLEMENTING KERBEROS

Red Hat System Administration I provides a foundation for students wishing to become full-time Linux system administrators by introducing key command line concepts and other enterprise-level tools. These concepts are further developed in the follow-on course, Red Hat System Administration II (RH134)

• Access the command line
• Log in to a Linux system and run simple commands using the shell.
• Manage files from the command line
• Copy, move, create, delete, and organize files from the bash shell prompt.
• Get help in Red Hat Enterprise Linux
• Resolve problems by using online help systems and Red Hat support utilities.
• Create, view, and edit text files
• Create, view, and edit text files from command output or in an editor.
• Manage local Linux users and groups
• Manage local Linux users and groups, and administer local password policies.
• Control access to files with Linux file system permissions
• Set Linux file system permissions on files and interpret the security effects of different permission settings.
• Monitor and manage Linux processes
• Obtain information about the system, and control processes running on it.
• Control services and daemons
• Control and monitor network services and system daemons using systemd
• Configure and secure OpenSSH service
• Access and provide access to the command line on remote systems securely using OpenSSH
• Analyze and store logs
• Locate and accurately interpret relevant system log files for troubleshooting purposes.
• Manage Red Hat Enterprise Linux networking
• Configure basic IPv4 networking on Red Hat Enterprise Linux systems.
• Archive and copy files between systems
• Archive files and copy them from one system to another.
• Install and update software packages
• Download, install, update, and manage software packages from Red Hat and yum package repositories.
• Access Linux file systems
• Access and inspect existing file systems on a Red Hat Enterprise Linux system.
• Use virtualized systems
• Create and use Red Hat Enterprise Linux virtual machines with KVM and libvirt.
• Comprehensive review
• Practice and demonstrate the knowledge and skills learned in this course.