Book Image

Learn PowerShell Core 6.0

By : David das Neves, Jan-Hendrik Peters
Book Image

Learn PowerShell Core 6.0

By: David das Neves, Jan-Hendrik Peters

Overview of this book

Beginning with an overview of the different versions of PowerShell, Learn PowerShell Core 6.0 introduces you to VSCode and then dives into helping you understand the basic techniques in PowerShell scripting. You will cover advanced coding techniques, learn how to write reusable code as well as store and load data with PowerShell. This book will help you understand PowerShell security and Just Enough Administration, enabling you to create your own PowerShell repository. The last set of chapters will guide you in setting up, configuring, and working with Release Pipelines in VSCode and VSTS, and help you understand PowerShell DSC. In addition to this, you will learn how to use PowerShell with Windows, Azure, Microsoft Online Services, SCCM, and SQL Server. The final chapter will provide you with some use cases and pro tips. By the end of this book, you will be able to create professional reusable code using security insight and knowledge of working with PowerShell Core 6.0 and its most important capabilities.
Table of Contents (26 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

ExecutionPolicy


Many companies treat the ExecutionPolicy as a security boundary, which is probably the biggest mistake we can see very frequently and continuously. Dozens of enterprise customers have tried it with this simple approach, and are still applying this approach in production. The ExecutionPolicy defines how scripts can be executed from a machine. The following execution policies are available:

Each pillar defines a specific rule, and the size of the pillar correlates with its restrictiveness for the execution of PowerShell. The definitions of each setting is as follows:

  • Restricted: No execution of policy scripts allowed
  • AllSigned: Scripts signed by a trusted publisher are allowed to execute
  • RemoteSigned: Scripts signed by a trusted publisher and locally created scripts are allowed to execute
  • Unrestricted: All scripts can be executed, but with scripts downloaded from the internet, you will be prompted for permission
  • Bypass: All scripts can be executed without warning prompts
  • Undefined...