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Blogs 2018-03-08T09:36:45+00:00
2905, 2018

Copying a Virtual Machine in Azure from Region A to Region B

By | May 29th, 2018|Categories: Azure, Virtual Machine|

Copy an Azure Virtual Machine to a different region within Microsoft Azure. One might think this is a big thing (which might become even bigger if the source Virtual Machine uses "Managed Disks"). The whole process consists of only a few steps (use this as a checklist): Create Disk Snapshots of the Source Virtual Machine Copy the Snapshots to a Destination Region-based Storage Account Container Create a new Virtual Machine within the New Resource Group Convert the Disks to “Managed Disks“ (if required) Create Disk Snapshots of the Source Virtual Machine Creating snapshots is a simple trick: from the Azure Portal select the source VM, select “Disks“, select one of the disks and click “+ Create Snapshot“, and do

2005, 2018

Clone your existing Web App using Azure portal

By | May 20th, 2018|Categories: Azure|

In this article we will learn to Clone Web Apps in Azure Portal. Clone in Azure Portal feature allows you to copy the App you want to clone to a different region or keep it in the same region. When you clone, Azure will also clone all the App Settings, Connection strings, Deployment sources and Certificates so the new cloned app is more or less up and running. Make sure the web apps are stopped after cloning otherwise it may create a conflict if you have a routable network from your primary region to secondary. You can put an Azure traffic manager to manage your network load. Cloning could be done of existing Apps, be it Web App, Mobile

2304, 2018

Workload Isolation via Application Security Groups

By | April 23rd, 2018|Categories: Azure, Azure Networking, Security|

An Azure subscription is designed to host a large number of workloads. In enterprises these workloads (ex:- application workloads) often belong to separate teams, each with their own security priorities. Isolation of these workloads (VM belonging to workload-1 should not talk to VM belonging to workload-2, even though both the VMs might be in the same subnet) thus becomes an important priority. For the purposes of this article, we will call such separation, East-West isolation. The rest of the article covers one methodology to achieve such East-West isolation using a combination of Application Security Groups (ASG) and Network Security Groups (NSG). We will also hint at some capacity planning considerations. We will make the following assumptions: A single workload

1404, 2018

App Innovation Circle – 2018

By | April 14th, 2018|Categories: Azure, Events|Tags: |

It's always been a pleasure to present on Microsoft Azure Cloud. Had an amazing experience in presenting Deep Dive on Microsft Azure and Serverless Computing at App Innovation Circle 2018 event held at Microsoft India Development Center , Hyderabad App Innovation Circle 2018 Agenda: Few pics from the Event: https://www.flickr.com/gp/kraghu_306/37C1Cm Few helpful links on Function Apps, Logic Apps, ASP.NET Core, and Container: Resources Finally, I want to end this blog with an inspirational quote by a famous American writers William Arthur Ward who once said: "Curiosity is the Wick in the candle of Leaning". Happy Learning...!! 🙂

1204, 2018

Virtual Machine Serial Console access

By | April 12th, 2018|Categories: Azure|Tags: , |

The public preview of Serial Console access for both Linux and Windows VMs has been launched. Managing and running virtual machines can be hard. But now, extensive tools are there to manage and secure the VMs, including patching management, configuration management, agent-based scripting, automation, SSH/RDP connectivity, and support for DevOps tooling like Ansible, Chef, and Puppet. However, sometimes this isn’t enough to diagnose and fix issues. Maybe a change that has been made resulted in an fstab error on Linux and you cannot connect to fix it. Maybe a bcdedit change that has been made pushed Windows into a weird boot state. Now, it is possible to debug both with direct serial-based access and fix these issues with the

2903, 2018

Deploy Function App to Azure using VS Code

By | March 29th, 2018|Categories: Azure, Azure Function App|Tags: , |

This blog will walk you through the creation and deployment of a JavaScript Function application using the Azure Functions extension in Visual Studio Code. Prerequisites: Download Visual Studio Code Install Node.js and npm Note: To enable local debugging, you need to install the Azure Functions Core Tools. Operating Systems: For macOS, install using Homebrew. $ brew tap azure/functions $ brew install azure-functions-core-tools For Windows, install using npm. $ npm install -g azure-functions-core-tools@core Once you have the prerequisites we can proceed by Installing the Azure Function Extension. Install the Azure Functions extension Once the extension is installed, log into your Azure account - in the AZURE FUNCTIONS explorer, click Sign in to Azure... and follow the instructions. Once logged in we should see our Azure email address in the status bar and the

2511, 2017

Enabling Just-In-Time VM Access

By | November 25th, 2017|Categories: Azure, Azure Security Center, Resource Manager|Tags: , |

  What is Just in time Virtual Machine access ? Just in time virtual machine (VM) access can be used to lock down inbound traffic to your Azure VMs, reducing exposure to attacks while providing easy access to connect to VMs when needed. JIT VM feature is more like an automated Azure Network Security Group rule set for accessing to any Azure specific VM(s) for a temporary period  which can be enabled any set of ports restricted from and to IP/Network range. Typically, Azure Security Center locks down the inbound traffic to any specific ports and opens a port by creating a Network Security Group rule(s) for an appropriate time and from approved IP addresses(which in most cases would be

1010, 2017

Microsoft Azure Networking (Part – 3)

By | October 10th, 2017|Categories: Azure Application Gateway, Azure Networking|

  Hello Everyone 🙂 Thanks for following the blog. As we know this blog is a part of Microsoft Azure Networking blog series. This blog is Part - 3 where we continue the Networking resources from understanding Azure Application Gateway. If you haven't read the Part - 1 and Part - 2 Azure application Gateway Layer 7 : HTTP/HTTPS load balancing WebSocket support. Web application firewall URL-based routing. Routing based on tuple of source & destination IP addresses. Round Robin Session affinity via cookies SSL decoding/terminations & end-to-end SSL processing. Services: Two SKU's -> Web Application firewall (WAF) and Standard. Small, Medium & Large services tiers. Differences in pricing for outbound data Small doesn’t support WAF Differenced in speed of putdound data processing.

1009, 2017

Microsoft Azure Networking (Part-2)

By | September 10th, 2017|Categories: Azure Networking, Load Balancer|Tags: , |

  Hello again 🙂 Thanks for following the blog. As we know we have been covering Microsoft Azure Networking resources. This blog is Part - 2 where we continue the Networking resources. If you haven't read the Part 1, click here Lets understand about Azure Load Balancer and see why anyone should use, Pros and Cons, and finally few examples of the resource in real world. Azure Load Balancer Layer 4(transport) : TCP & UDP. Routing for virtual machines & cloud services. Support virtual & hybrid networks(on prem/-- -) Supports reserved IP Addresses. Routing based on tuple of source & destination IP addresses. Supports session affinity. Supports port forwarding. Internet Facing Load Balancer :- Load Balancer passes public IP request to Virtual

2207, 2017

Azure ARM VM Snapshot (unmanaged Disks)

By | July 22nd, 2017|Categories: Azure, Resource Manager|Tags: , , , |

There are some scenarios where the managed Azure Backup Services may not be a suitable fit. So let's discuss more on the custom backup strategy which uses snapshots behind the scenes.   Azure Storage provides the capability to take snapshots of blobs.   Before we dig into Snapshot strategy, lets understand, "What's a Snapshot ?" In Hyper-V Environment, the configuration, memory and supporting process information is saved and a differential disk is created to store future disk changes. When you delete a VM, all the snapshots are deleted. However, the virtual hard disk (VHD) is not deleted, which means all content stored in the differential disks associated with the snapshots must be merged with the original VHD, as the following diagram shows: