Group Policy: Troubleshooting

Group Policy is a powerful and essential feature set within Active Directory, yet when it goes wrong it can have wide-ranging implications. This course will teach you how to systematically troubleshoot the most complicated Group Policy issues, fast.
Course info
Rating
(27)
Level
Intermediate
Updated
May 31, 2016
Duration
1h 59m
Table of contents
Description
Course info
Rating
(27)
Level
Intermediate
Updated
May 31, 2016
Duration
1h 59m
Description

Group Policy processing is at the heart of any Active Directory infrastructure. Knowing how to set it up is one thing, but being able to troubleshoot and resolve complex issues can really make you stand out from the crowd. In this course, you'll learn a three-phased, practical approach for methodically tackling any Group Policy problem. You'll start by looking at the 'obvious' problems and you'll learn where to start troubleshooting any issue. Next, you'll learn what the common infrastructure issues are and how to resolve them, and finally you'll gain a low level understanding of the Group Policy mechanics. By the end of this course, you will have learned more than just how to troubleshoot Group Policy; you'll have seen computers querying DNS for their domain controllers, you'll learn how to use tools such as LDP in order to look under the hood at the Group Policy Active Directory attributes, and you'll understand in more detail how Active Directory replication operates and how to fix it when it's broken. By using the methodology in this course combined with the deeper understanding of how group Policy works, you'll be able to solve the most complex issues, fast.

About the author
About the author

Peter is a technology enthusiast and has been immersed in IT ever since his days of programming 'Basic' on the Commodore 64. He has 20 years of professional experience supporting or architecting large and complex infrastructure environments for companies including Microsoft and various investment banks.

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Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hi everyone, my name is Peter Grant and welcome to my course, Group Policy: Troubleshooting. I've been working with Group Policy ever since Active Directory was released. I've worked for Microsoft in both their Active Directory and Core Windows Support Teams and I'm now the CTO of Extrovert, a London-based IT consulting company. This course is about one thing, fixing Group Policy fast. We'll show you how to become a Group Policy superhero by solving those issues that have baffled your colleagues and confounded your boss. You'll learn practical, easy to follow approaches for troubleshooting Group Policy whilst demystifying it along the way. Some of the major topics that we'll cover include the obvious Group Policy issues, related infrastructure issues and how to fix them, Group Policy end to end mechanics, and client side debugging. By the end of this course you will have a troubleshooting approach that you can use to address any Group Policy issue and you'll have a deeper understanding on how it actually works under the hood. Before beginning this course, you should be familiar with the core concepts of Active Directory administration and the fundamentals of Group Policy. I hope you'll join me on this journey to learn troubleshooting Group Policy with Pluralsight.

Phase 1: Check the 'Obvious'
Hi and welcome to Module 2, Checking the Obvious. In this module we'll look at the first phase of Group Policy troubleshooting where we'll check the basic mechanics of how Group Policy should be set up, and make sure that you've not missed anything, well, obvious. In this module we'll look at how to solve the common Group Policy problems fast. I'll show you where to begin troubleshooting Group Policy. We'll start by identifying what the actual problem is, we'll look at scope and filtering, the processing order of Group Policy, setting usage, refresh triggers, and of course, GPResult. Alright let's get started. This is Mike. Mike is an IT support guy who's just started working for a company called Globomantics. They're a global rental car company and I've been having a lot of problems with Group Policy ever since it's been implemented. Mike decides to go to the IT Director and ask if he can have a go at troubleshooting and try and fix the problems that all others have been unable to solve. The IT Director doesn't even know who Mike is, but well, he's got nothing to lose so he agrees to give him a few days to investigate.

Phase 2: Check the Infrastructure
Okay so you've checked for common misconfiguration issues. Now the next step is to examine the core infrastructure components, which is what we'll be looking at in this module. This module's all about checking areas within your Active Directory that aren't functioning correctly and that could be causing Group Policy to not apply as expected. In order to focus our energy on the most likely areas we'll first look at the circumstances surrounding the issue. Taking the time to think about when and where the issue is occurring can really save yourself time in troubleshooting as you can get to the heart of the problem quickly. Next I'll show you how to identify what domain controller you're connecting to in order to check that it's got the correct setting. We'll also touch on the important role that the PDC emulator plays within Group Policy. This will lead us on to Group Policy replication where we'll focus on both how to identify replication issues and also on ways to resolve them. We'll look at GPO permissions and I'll show you a quick way to ensure that the permissions are set correctly. And finally, we'll show you how to check that the computer is on the domain correctly and in a healthy state.

Summarizing the Journey
Now that we've come to the end of the course, let's summarize what we've learned. So we followed Mike, the IT support guy from Globomantics, who put his hands up to solve the problems that no one else in his organization wanted to. Mike utilized his knowledge of Active Directory to solve various issues by taking a three-phased approached. Phase 1 looked at the issues commonly caused by misconfiguration problems. These are either due to the administrator not understanding the behavior correctly or perhaps there was a simple mistake in the configuration process. And Phase 2 looks at problems which are generally caused by associated issues or actual faults with the infrastructure. And we looked at problems such as replication errors and computer health issues, as well as the ways to resolve it. And finally, in Phase 3, we took a look at some of the deep dive troubleshooting options available and we started by working through the Group Policy end-to-end mechanics before taking a look at the trace logging and the client-side extensions.