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Linux Optimization and Troubleshooting

COURSE TYPE

Intermediate

Course Number

1901

Duration

4 Days

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Maintain a reliable and highly available Linux server infrastructure, and reduce costly downtime. In this Linux optimization and troubleshooting training course, you gain the expertise to effectively diagnose and fix common and complex Linux server configuration and administrations issues, and learn to apply those skills in data centres and in the cloud.

You Will Learn How To

  • Troubleshoot Linux with effective tools and techniques
  • Rescue an unbootable system
  • Recover and tune local and remote file systems
  • Identify and fix network errors and bottlenecks

Important Course Information

Requirements:

  • Knowledge of Linux at the level of:

Software:

  • This course uses Red Hat Enterprise Linux
  • Concepts taught are applicable to all Linux distributions

Course Outline

  • Introduction to Troubleshooting
  • Investigating different failure modes
  • Reviewing troubleshooting methods
  • Documenting solutions and configurations
  • Booting the System

Starting the boot sequence

  • Fixing kernel load errors
  • Distinguishing BIOS from UEFI requirements

Recreating a working boot environment

  • Rebuilding the RAM drive with correct drivers
  • Recovering the root file system
  • Optimizing and Recovering File Systems

Managing local file system integrity

  • Locating disks and LUNs by path and ID
  • Running fsck on live file systems
  • Selecting the correct file system type

Improving file system performance

  • Detecting incorrect queueing algorithms
  • Tuning the cache for the application load

Finding file system errors in logical volumes

  • Implementing snapshots into the troubleshooting process
  • Remounting corrupt LVM file systems

Extending and resizing live file systems

  • Increasing storage space with online resizing
  • Adding physical and logical volumes effectively
  • Managing Packages and Processes

Rebuilding packages for compatibility

  • Satisfying legacy and foreign RPM dependencies
  • Adapting the spec file and rebuilding the package

Measuring application resource usage

  • Identifying application bottlenecks in disks, processors and memory usage
  • Monitoring system performance
  • iostat
  • rlimit
  • top
  • strace
  • nfsstat
  • vmstat

Allocating resources to applications

  • Setting limits for specific applications
  • Ensuring optimal system performance
  • Troubleshooting the Linux Network Stack

Applying troubleshooting tools

  • Capturing traffic with graphical and command-line tools
  • Working around vendor distribution limitations

Tuning network kernel parameters

  • Pinpointing parameters affecting performance
  • Maximizing network throughput

Adjusting Ethernet drivers

  • Evaluating driver settings for MTU and protocol offload
  • Tailoring kernel modules for various traffic profiles

Restoring network connectivity through the firewall

  • Enabling firewall logging to isolate application failures
  • Extending rules with iptables

Diagnosing Network File System (NFS) errors

  • Gathering statistics to uncover NFS shortcomings
  • Modifying communication buffer settings
  • Auditing and Logging with SELinux and Rsyslog

Fine-tuning SELinux to enable applications

  • Restoring security contexts to re-enable access
  • Translating audit events to policy changes
  • Writing and compiling an SELinux policy

Collecting remote event information with Rsyslog

  • Setting up remote logging of errors and failures
  • Centralizing log collection and analysis

Detecting unauthorized changes with Advanced Intrusion Detection Environment (AIDE)

  • Generating the security database
  • Exposing configuration and file changes
  • Integrating Linux with Active Directory

Authenticating with Lightweight Directory Access Protocol (LDAP)

  • Migrating Pluggable Authentication Modules (PAM) and nsswitch.conf
  • Resolving user and group ID mapping errors

Finding and fixing Kerberos errors

  • Kerberizing user authentication
  • Debugging Active Directory connectivity
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Convenient Ways to Attend This Instructor-Led Course

Hassle-Free Enrolment: No advance payment required to reserve your seat.
Tuition due 30 days after you attend your course.

In the Classroom

Live, Online

Private Team Training

In the Classroom — OR — Live, Online

Tuition — Standard: $3285   Government: $2890

Mar 13 - 16 (4 Days)
9:00 AM - 4:30 PM EDT
Online (AnyWare) Online (AnyWare) Reserve Your Seat

Linux Optimization and Troubleshooting

Thank you for your interest in this event, but there are no available seats at this time. Please select another date. You may also contact a customer service representative or training advisor about your training needs, from single courses to large enterprise solutions.

You have used Passport or Voucher Number for this event. Please contact our Customer Service Representative or Training Advisor and they will work with your payment options.

Mar 13 - 16 (4 Days) 9:00 AM - 4:30 PM EDT Online (AnyWare)
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Apr 24 - 27 (4 Days)
9:00 AM - 4:30 PM EDT
Rockville, MD / Online (AnyWare) Rockville, MD / Online (AnyWare) Reserve Your Seat

Linux Optimization and Troubleshooting

Thank you for your interest in this event, but there are no available seats at this time. Please select another date. You may also contact a customer service representative or training advisor about your training needs, from single courses to large enterprise solutions.

You have used Passport or Voucher Number for this event. Please contact our Customer Service Representative or Training Advisor and they will work with your payment options.

Apr 24 - 27 (4 Days) 9:00 AM - 4:30 PM EDT Rockville, MD / Online (AnyWare)
Please select the quantity Please select the quantity
Optional Discounts
?
Have a Promo Code?

Enter a promo code for additional savings.

{{vm.lineItem.$DiscountValidationMessage}} Please enter a valid Promo Code
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Don't know your Voucher or Passport Number?

Contact us via live chat or call us at 1-888-843-8733 and one of our representatives will assist you with your order.

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Your Work Email is required Please enter a valid Email
?
BY CLICKING THE GOVERNMENT BOX, YOU AGREE TO THESE TERMS OF USE; IF YOU DO NOT AGREE, LEAVE THAT BOX BLANK TO RECEIVE COMMERCIAL PRICING.

By clicking the Government box – you certify that you/your firm is eligible to receive discounted price available only to Federal, Provincial and Municipal agencies. Colleges, universities and non-for profits are not eligible for the government discount.

Learning Tree reserves the right, at its sole discretion, to change, modify, add or remove portions of these Terms of Use, at any time. It is your responsibility to ensure that you qualify to receive a Government discounted rate. Please contact your Government Account Coordinator for any questions.

Not sure if you qualify? See the ? for details. Terms and Conditions
Price
Pay now -or- pay later
Pay by credit card at checkout
-or- pay later by invoice, as always.

Added to cart

Jul 10 - 13 (4 Days)
9:00 AM - 4:30 PM EDT
Rockville, MD / Online (AnyWare) Rockville, MD / Online (AnyWare) Reserve Your Seat

Linux Optimization and Troubleshooting

Thank you for your interest in this event, but there are no available seats at this time. Please select another date. You may also contact a customer service representative or training advisor about your training needs, from single courses to large enterprise solutions.

You have used Passport or Voucher Number for this event. Please contact our Customer Service Representative or Training Advisor and they will work with your payment options.

Jul 10 - 13 (4 Days) 9:00 AM - 4:30 PM EDT Rockville, MD / Online (AnyWare)
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Optional Discounts
?
Have a Promo Code?

Enter a promo code for additional savings.

{{vm.lineItem.$DiscountValidationMessage}} Please enter a valid Promo Code
?
Don't know your Voucher or Passport Number?

Contact us via live chat or call us at 1-888-843-8733 and one of our representatives will assist you with your order.

{{vm.lineItem.$VoucherNumberValidationMessage}} Please enter a valid Voucher or Passport Number
Your Work Email is required Please enter a valid Email
?
BY CLICKING THE GOVERNMENT BOX, YOU AGREE TO THESE TERMS OF USE; IF YOU DO NOT AGREE, LEAVE THAT BOX BLANK TO RECEIVE COMMERCIAL PRICING.

By clicking the Government box – you certify that you/your firm is eligible to receive discounted price available only to Federal, Provincial and Municipal agencies. Colleges, universities and non-for profits are not eligible for the government discount.

Learning Tree reserves the right, at its sole discretion, to change, modify, add or remove portions of these Terms of Use, at any time. It is your responsibility to ensure that you qualify to receive a Government discounted rate. Please contact your Government Account Coordinator for any questions.

Not sure if you qualify? See the ? for details. Terms and Conditions
Price
Pay now -or- pay later
Pay by credit card at checkout
-or- pay later by invoice, as always.

Added to cart

Sep 4 - 7 (4 Days)
9:00 AM - 4:30 PM EDT
Ottawa / Online (AnyWare) Ottawa / Online (AnyWare) Reserve Your Seat

Linux Optimization and Troubleshooting

Thank you for your interest in this event, but there are no available seats at this time. Please select another date. You may also contact a customer service representative or training advisor about your training needs, from single courses to large enterprise solutions.

You have used Passport or Voucher Number for this event. Please contact our Customer Service Representative or Training Advisor and they will work with your payment options.

Sep 4 - 7 (4 Days) 9:00 AM - 4:30 PM EDT Ottawa / Online (AnyWare)
Please select the quantity Please select the quantity
Optional Discounts
?
Have a Promo Code?

Enter a promo code for additional savings.

{{vm.lineItem.$DiscountValidationMessage}} Please enter a valid Promo Code
?
Don't know your Voucher or Passport Number?

Contact us via live chat or call us at 1-888-843-8733 and one of our representatives will assist you with your order.

{{vm.lineItem.$VoucherNumberValidationMessage}} Please enter a valid Voucher or Passport Number
Your Work Email is required Please enter a valid Email
?
BY CLICKING THE GOVERNMENT BOX, YOU AGREE TO THESE TERMS OF USE; IF YOU DO NOT AGREE, LEAVE THAT BOX BLANK TO RECEIVE COMMERCIAL PRICING.

By clicking the Government box – you certify that you/your firm is eligible to receive discounted price available only to Federal, Provincial and Municipal agencies. Colleges, universities and non-for profits are not eligible for the government discount.

Learning Tree reserves the right, at its sole discretion, to change, modify, add or remove portions of these Terms of Use, at any time. It is your responsibility to ensure that you qualify to receive a Government discounted rate. Please contact your Government Account Coordinator for any questions.

Not sure if you qualify? See the ? for details. Terms and Conditions
Price
Pay now -or- pay later
Pay by credit card at checkout
-or- pay later by invoice, as always.

Added to cart

Oct 23 - 26 (4 Days)
9:00 AM - 4:30 PM EDT
Rockville, MD / Online (AnyWare) Rockville, MD / Online (AnyWare) Reserve Your Seat

Linux Optimization and Troubleshooting

Thank you for your interest in this event, but there are no available seats at this time. Please select another date. You may also contact a customer service representative or training advisor about your training needs, from single courses to large enterprise solutions.

You have used Passport or Voucher Number for this event. Please contact our Customer Service Representative or Training Advisor and they will work with your payment options.

Oct 23 - 26 (4 Days) 9:00 AM - 4:30 PM EDT Rockville, MD / Online (AnyWare)
Please select the quantity Please select the quantity
Optional Discounts
?
Have a Promo Code?

Enter a promo code for additional savings.

{{vm.lineItem.$DiscountValidationMessage}} Please enter a valid Promo Code
?
Don't know your Voucher or Passport Number?

Contact us via live chat or call us at 1-888-843-8733 and one of our representatives will assist you with your order.

{{vm.lineItem.$VoucherNumberValidationMessage}} Please enter a valid Voucher or Passport Number
Your Work Email is required Please enter a valid Email
?
BY CLICKING THE GOVERNMENT BOX, YOU AGREE TO THESE TERMS OF USE; IF YOU DO NOT AGREE, LEAVE THAT BOX BLANK TO RECEIVE COMMERCIAL PRICING.

By clicking the Government box – you certify that you/your firm is eligible to receive discounted price available only to Federal, Provincial and Municipal agencies. Colleges, universities and non-for profits are not eligible for the government discount.

Learning Tree reserves the right, at its sole discretion, to change, modify, add or remove portions of these Terms of Use, at any time. It is your responsibility to ensure that you qualify to receive a Government discounted rate. Please contact your Government Account Coordinator for any questions.

Not sure if you qualify? See the ? for details. Terms and Conditions
Price
Pay now -or- pay later
Pay by credit card at checkout
-or- pay later by invoice, as always.

Added to cart

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Tuition

Standard

Government

In Classroom or
Online

Standard

$3285

Government

$2890

Private Team Training

Contact Us »

Course Tuition Includes:

After-Course Instructor Coaching
When you return to work, you are entitled to schedule a free coaching session with your instructor for help and guidance as you apply your new skills.

After-Course Computing Sandbox
You'll be given remote access to a preconfigured virtual machine for you to redo your hands-on exercises, develop/test new code, and experiment with the same software used in your course.

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You can take your Learning Tree course exam on the last day of your course or online any time after class.

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Training Hours

Standard Course Hours: 9:00 am – 4:30 pm
*Informal discussion with instructor about your projects or areas of special interest: 4:30 pm – 5:30 pm

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