Linux Troubleshooting

LNX-118 (5 Days)

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Linux Training Overview

This Linux Troubleshooting training course teaches Linux administrators how to tackle both common and uncommon system problems. Attendees learn effective troubleshooting techniques and then practice applying them in a realistic troubleshooting workshop process. This Linux course covers the troubleshooting of topics and technologies that were introduced in the three core classes, Linux Fundamentals, Enterprise Linux System Administration, and Enterprise Linux Network Services.

Location and Pricing

Most Accelebrate courses are delivered as private, customized, on-site training at our clients' locations worldwide for groups of 3 or more attendees and are custom tailored to their specific needs. Please visit our client list to see organizations for whom we have delivered private in-house training. These courses can also be delivered as live, private online classes for groups that are geographically dispersed or wish to save on the instructor's or students' travel expenses. To receive a customized proposal and price quote for private training at your site or online, please contact us.

Linux Training Objectives

All students will understand Linux troubleshooting methodology and tools.

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 scenario is independent of the others, students can choose scenarios according to their interests and experience.

Linux Training Outline

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Introduction
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
  • Configuring New Hardware with hwinfo
  • strace and ltrace
  • lsof and fuser
  • ipcs and ipcrm
  • iostat, mpstat, and vmstat
  • Using hdparm to Measure
  • Troubleshooting with the ip command
  • Name Resolution
  • ss/netstat and rpcinfo
  • nmap
  • Netcat
  • tcpdump and wireshark
Rescue Environments
  • Diagnostic/Recovery
  • Rescue Procedures
  • Recovery: mount & chroot
  • Recovery Examples
  • Recovery: Network Utilities
Topic Group 1
  • Linux Boot Process
  • System Boot Method Overview
  • Systemd System and Service Manager
  • Modifying systemd services
  • Using systemd
  • Booting Linux on PCs
  • Troubleshooting With GRUB 2
  • 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
Topic Group 2
  • Networking Tools
  • Linux Network Interfaces
  • Networking Commands Review
  • NetworkManager
  • Networking Troubleshooting
  • Networking Troubleshooting
  • Virtual Interfaces/IP Aliases
  • Network Teaming
  • Xinetd Concepts
  • Xinetd Troubleshooting
  • TCP Wrappers Concepts
  • TCP Wrappers Concepts
  • TCP Wrappers Troubleshooting
  • Netfilter/iptables Concepts
  • Netfilter/iptables Troubleshooting
Topic Group 3
  • X11 Concepts
  • X11 Server Operation
  • X11 Troubleshooting
  • Rsyslog Concepts
  • System Logging
  • Systemd Journal
  • Systemd Journal's journalctl
  • Secure Logging with Journal's Log Sealing
  • Syslog Troubleshooting
  • RPM Concepts
  • RPM Troubleshooting
  • Common Unix Printing System (CUPS)
  • CUPS Troubleshooting
  • CUPS Troubleshooting
  • at & cron
  • at & cron Usage
  • at & cron Troubleshooting
Topic Group 4
  • Users and Groups
  • Users and Groups Troubleshooting
  • PAM Concepts
  • PAM Troubleshooting
  • Filesystem Quotas
  • Quotas Troubleshooting
  • File Access Control Lists
  • FACL Troubleshooting
  • SELinux Concepts
  • SELinux Troubleshooting
  • SELinux Troubleshooting Continued
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
  • Multipathing Overview
  • SAN Multipathing
  • Multipath Configuration
  • Multipathing Best Practices
  • LDAP and OpenLDAP
  • Troubleshooting OpenLDAP
  • NIS and NIS+ (YP)
  • NIS Troubleshooting Aids
Topic Group 6
  • DNS Concepts
  • DNS Troubleshooting
  • DNS Troubleshooting
  • Apache Concepts
  • Apache Troubleshooting
  • Apache Troubleshooting
  • FTP Concepts
  • FTP Troubleshooting
  • Squid Concepts
  • Squid Troubleshooting
Topic Group 7
  • Samba Concepts
  • Samba Troubleshooting
  • Postfix Concepts
  • Postfix Troubleshooting
  • Postfix Troubleshooting
  • IMAP & POP Concepts
  • IMAP/POP Troubleshooting
  • MariaDB
  • MariaDB Troubleshooting
Conclusion
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Lecture percentage

25%

Lecture/Demo

Lab percentage

75%

Lab

Course Number:

LNX-118

Duration:

5 Days

Prerequisites:

This course is designed for intermediate to advanced users. Students should have already taken the Linux Fundamentals, Enterprise Linux Systems Administration, and Enterprise Linux Network Services, or have equivalent knowledge. A short refresher for each topic will be presented, but will not be discussed in depth.

Training Materials:

All Linux training attendees receive comprehensive courseware and a related textbook.

Software Requirements:

  • Windows, Mac, or Linux PCs with at least 8 GB RAM
  • Accelebrate can provide a VirtualBox or VMware environment with all software needed for the class
    • This class can be taught using the Linux distribution of your choice
  • Please contact us for further setup details

Contact Us:

Accelebrate’s training classes are available for private groups of 3 or more people at your site or online anywhere worldwide.

Don't settle for a "one size fits all" public class! Have Accelebrate deliver exactly the training you want, privately at your site or online, for less than the cost of a public class.

For pricing and to learn more, please contact us.

Contact Us Train For Us

Toll-free in US/Canada:
877 849 1850
International:
+1 678 648 3113

Toll-free in US/Canada:
866 566 1228
International:
+1 404 420 2491

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PMB 378
Atlanta, GA 30309-3918
USA

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