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Step-by-Step: Automate Building Outbound Network Security Groups Rules via Azure Resource Manager (ARM) and PowerShell

Lately, I’ve been working with several organizations that need to selectively restrict outbound Internet access from within their Azure Virtual Networks (VNETs) to conform to their own internal security policies.  However, at the same time, the applications within their VNET may need to legitimately access several other Azure services, such as Azure Storage, Azure SQL Database, and others, that live outside a VNET in the same Azure datacenter region.

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In this article, we’ll walk through a process that can be leveraged to easily define and control outbound network access to Azure services in the same region as your VNET using Network Security Groups (NSGs). You can also download the complete set of code snippets referenced in this article from GitHub.

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More Stories By Keith Mayer

Keith Mayer is a Technical Evangelist at Microsoft focused on Windows Infrastructure, Data Center Virtualization, Systems Management and Private Cloud. Keith has over 17 years of experience as a technical leader of complex IT projects, in diverse roles, such as Network Engineer, IT Manager, Technical Instructor and Consultant. He has consulted and trained thousands of IT professionals worldwide on the design and implementation of enterprise technology solutions.

Keith is currently certified on several Microsoft technologies, including System Center, Hyper-V, Windows, Windows Server, SharePoint and Exchange. He also holds other industry certifications from IBM, Cisco, Citrix, HP, CheckPoint, CompTIA and Interwoven.

Keith is the author of the IT Pros ROCK! Blog on Microsoft TechNet, voted as one of the Top 50 "Must Read" IT Blogs.

Keith also manages the Windows Server 2012 "Early Experts" Challenge - a FREE online study group for IT Pros interested in studying and preparing for certification on Windows Server 2012. Join us and become the next "Early Expert"!

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