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Linux Troubleshooting

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Content starts here
At a glance
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Course number U8531S
Length 5 days
Delivery method Remotely assisted instructional learning ( RAIL)
Instructor-led training ( ILT)
Onsite dedicated training ( OST)
Price USD $3,000
CAD $3,300

Special note

The RedHat versions of the course covers the following Linux distributions:

  • RedHat Enterprise Linux 6.0

The SUSE versions of the course covers the following Linux distributions:

  • SUSE Linux Enterprise Server 11.0

Students will receive course workbooks for RedHat Enterprise Linux 6.0 and SUSE Linux Enterprise Server 11.0 and select which distribution to perform the labs on.

Each on-site course delivery will run on either RedHat Enterprise Linux 6.0 or SUSE Linux Enterprise Server 11.0.


Course overview

This course 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.

Prerequisites

This course is designed for intermediate to advanced users. Students should have already taken the u8583, h7091 and h7092, or have equivalent knowledge. A short refresher for each topic will be presented, but will not be discussed in depth.

Supported Distributions

  • Red Hat Enterprise Linux 6
  • SUSE Linux Enterprise 11

Audience

  • Linux system administrators wanting to increase their skills in troubleshooting

Ways to save

Benefits to you

This course addresses a wide range of interesting topics to experienced Linux system administrators that are responsible for troubleshooting Linux. The course focuses on teaching the student practical Linux troubleshooting methodologies as well as introducing students to a wide variety of administration tools and techniques to assist in troubleshooting with plenty of real-world hands-on laboratory exercises to enhance skill development during the course.


Next Steps

Course outline

Troubleshooting Methodology

The Troubleshooting Mindset

  • Evaluating Possible Solutions
  • Identifying and Implementing Change
  • Define and Follow Policies
  • Working with Others
  • Finding Documentation
  • Finding Help Online

Troubleshooting Tools

Common Troubleshooting Tools

  • RPM Queries
  • RPM Verification
  • SRPM and spec Files
  • Hardware Discovery Tools
  • strace and ltrace
  • lsof and fuser
  • ipcs and ipcrm
  • iostat, mpstat, and vmstat
  • Using hdparm to Measure
  • Troubleshooting with the ip command
  • Name Resolution
  • netstat and rpcinfo
  • nmap
  • Netcat
  • tcpdump
  • Lab Tasks

Rescue Environments

Diagnostic/Recovery Runlevels

  • Rescue Procedures
  • Recovery: mount & chroot
  • Recovery Examples
  • Recovery: Network Utilities
  • Lab Tasks

Topic Group 1

Linux Boot Process

  • Booting Linux on PCs
  • Troubleshooting With GRUB
  • Boot Process Troubleshooting
  • Troubleshooting: Linux and Init
  • Process Management
  • Process Management Tools
  • Troubleshooting Processes: top
  • Filesystem Concepts
  • Filesystem Troubleshooting
  • Backup Concepts
  • Backup Troubleshooting
  • Backup Troubleshooting
  • Lab Tasks

Topic Group 2

Networking Tools

  • Networking Commands Review
  • Networking Troubleshooting
  • Networking Troubleshooting
  • Virtual Interfaces/IP Aliases
  • Xinetd Concepts
  • Xinetd Troubleshooting
  • TCP Wrappers Concepts
  • TCP Wrappers Concepts
  • TCP Wrappers Troubleshooting
  • Netfilter/iptables Concepts
  • Netfilter/iptables Troubleshooting
  • Lab Tasks

Topic Group 3

X11 Concepts

  • X11 Server Operation
  • X11 Troubleshooting
  • Syslog Concepts
  • Syslog Troubleshooting
  • RPM Concepts
  • RPM Troubleshooting
  • Common Unix Printing System (CUPS)
  • CUPS Troubleshooting
  • at & cron
  • at & cron Usage
  • at & cron Troubleshooting
  • Lab Tasks

Topic Group 4

Users and Groups 2
Users and Groups Troubleshooting 3
PAM Concepts 4
PAM Troubleshooting 5
Filesystem Quotas

  • Quotas Troubleshooting
  • File Access Control Lists
  • FACL Troubleshooting
  • SELinux Concepts
  • SELinux Troubleshooting
  • SELinux Troubleshooting Continued
  • Lab Tasks

Topic Group 5

Kernel Modules

  • Kernel Modules Troubleshooting
  • Logical Volume Management
  • Creating Logical Volumes
  • LVM Deployment Issues
  • VG Migration, PV Resizing & Troubeshooting
  • Software RAID Overview
  • RAID Troubleshooting
  • LDAP and OpenLDAP
  • Troubleshooting OpenLDAP
  • Lab Tasks

Topic Group 6

DNS Concepts

  • DNS Troubleshooting
  • DNS Troubleshooting
  • Apache Concepts
  • Apache Troubleshooting
  • Apache Troubleshooting
  • FTP Concepts
  • FTP Troubleshooting
  • Squid Concepts
  • Squid Troubleshooting
  • Lab Tasks

Topic Group 7

Samba Concepts

  • Samba Troubleshooting
  • Postfix Concepts
  • Postfix Troubleshooting
  • Postfix Troubleshooting
  • Sendmail Concepts
  • Sendmail Troubleshooting
  • IMAP & POP Concepts
  • IMAP/POP Troubleshooting
  • Lab Tasks

U8531S  G.00
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