You are currently browsing the archives for the Windows Azure category.

Archive for the ‘Windows Azure’ Category

Creating a Minecraft server using the new Azure portal

 :: Posted by John Savill on 04-17-2015

A couple of years ago I wrote a basic set of instructions on creating a Minecraft server in Azure. I felt it was time to create a new set of instructions based on the new Azure portal. You need an Azure subscription to follow this tutorial, this could be a subscription you pay for, Azure benefits that are part of an MSDN subscription or even an Azure trial subscription which can be signed up for from

Once you have a subscription follow the steps outlined below:

Login to the new Azure portal at When you first login you will be at the Azure Startboard. Also notice the hub menu on the left hand side which enables access to various resources within Azure. At the bottom of the hub menu is a New button which enables all the different types of Azure service to be created.


Click the New button and under Browse select Compute which opens up the Compute blade with a list of images. Select the Windows Server 2012 R2 Datacenter image.


The Create VM blade will open which enables the configuration for the new VM to be selected. Notice in the Create VM blade there are some basic properties to be completed such as the name for the VM, a username and a password. Additionally there are options for the size of the VM, optional configurations and location.  The hostname can be anything you wish, for example Minecraft. Enter a username, it cannot be Administrator as this is reserved but could use localadmin. Enter a complex password which needs to be at least 8 characters with a mix of three of the following; lowercase, uppercase, numbers and symbols.

Select the Pricing Tier part to open the pricing tier lens which enables the size of the VM to be selected. The A1 Basic is sufficient for basic testing however if you wanted to host more players the Standard A2 may be a better fit. Standard tier VMs have higher storage IOPS and network performance in addition to load balancing and scale capabilities (which we don’t use for our single instance Minecraft server). Notice there is a View all link to show all the available VM sizes. Select a VM size and click Select.


By default a new virtual network is created for the VM along with a new cloud service which owns a Virtual IP that is accessible from the Internet and a random name is selected for the cloud service DNS name. Select Optional Configuration – Network – Domain Name – Create new domain name and type in a name. The name must be unique across all of Azure. You could try Minecraft-<your name> and click OK. As you type the name it will be checked to ensure its unique. This name will be how you can connect to your server, <name> Click OK to the Network blade. Notice by default a new Storage Account will be created to store the virtual hard disks for the new VM however you could change this if desired.


On the main Create VM blade select the Location part. This enables the Azure region to be selected where the new VM will be created. Notice there are Azure regions throughout the world so pick one closest to you (or your players!). Close the blade. By default a checkbox is selected “Add to Startboard” that would add the new VM to the Startboard of your subscription. Click Create to create the VM.

The VM will now be created and will take around 5 minutes to be fully provisioned and ready for use. By default the VM will have an OS disk that is 127 GB in size and a temporary disk, the D: drive. Never put any data you care about on the D: drive as this is not persistent and by default will only be used for the pagefile. The OS disk has read and write caching enabled. You can also add data disks which have configurable caching options including no caching which is what is needed for databases and other types of workload that need writes to be persisted directly to disk. We will add a data disk to our Minecraft server for our Minecraft binaries and data files. You will need to wait for the VM to be created before adding the data disk. Select the VM which will open the VMs build and under the Essential lens (a lens is a group of parts that share a common theme) select the All settings link which opens the Settings blade.

Select Disks in the Settings blade and select the Attach New action. By default the maximum size of 1023 GB for a disk is selected with caching disabled. Select the Storage Container part – Choose Storage Account and select the storage account that you used for the Minecraft server. For the Container select the default vhds container. Click OK to create the new data disk. You may wonder why 1023 GB since you have to pay for storage in Azure and your Minecraft world may only be 50 MB which means it would seem you are paying for a lot of wasted space. This is not the case as Azure actually uses sparse storage which means even though you are creating a 1023 GB VHD file in Azure Storage behind the scenes storage is only actually allocated for the data written which is what you pay for.


Your VM is now created and has a data disk added to it. The next step is to connect to the new VM. In the VMs blade select the Connect action. This will download an RDP file which can either be opened or saved to disk so the exact options such as display size etc can be changed. The RDP file is populated with the DNS name of the cloud service that contains the Minecraft VM and the port for the RDP endpoint for the specific VM.


You are now connected to your Azure VM. Open Explorer and you will see your OS C: drive and the temporary storage drive D: but the data disk we added is not shown because it has not yet been initialized or formatted. Open the Disk Management MMC snap-in (Start – Run – diskmgmt.msc). When the snap-in opens it will inform you of a new disk and offer to initialize. Click OK. Once the disk is online right click on the disk and select New Simple Volume. Except all the defaults. Notice on the Format Partition dialog enter a label for the Volume label such as Data and make sure “Perform a quick format” is selected. This is critical in Azure as remember that sparse storage? If you don’t perform a quick format every block of the disk will be written to which means you would then pay for the full 1023 GB size. Complete the dialogs to create the new data disk.


Navigate back to Explorer and the data disk will now be visible. Select the data disk and create a folder called Minecraft.

Open Internet Explorer and navigate to In the Multiplayer Server area download the latest server binary and save to the Minecraft folder that you created on the data disk. I normally rename this download to minecraft_server.exe and remove the version number from the name. You also need to download and install Java. This can be downloaded from and select the 64-bit version. During the Java installation you likely want to unselect the options to install and set Ask as the default!

You are now ready to get Minecraft running. I recommend creating a batch file to launch the Minecraft server which will configure it to use more memory. I save the following to a file (minecraft.bat) and place in my Minecraft folder. This launches Minecraft server and set it to use 2 GB of memory:

“C:\Program Files\Java\jre1.8.0_45\bin\javaw.exe” -Xms2048m -Xmx2048m -jar “Minecraft_Server.exe”

Run the batch file. Once it has run open the eula.txt and change the false to true then rerun the minecraft.bat file which will now launch the Minecraft server service however it is not usable yet.

Minecraft clients communicate to the server on port 25565 which by default is blocked by the Windows Firewall. You need to create a firewall exception. Click Start and type firewall. This will find the Windows Firewall with Advanced Security application. Launch it. Select Inbound Rules and select the New Rule action. Select a type of Port in the New Inbound Rule Wizard and click Next. In the next page select TCP and type in port 25565 then click Next. Accept the defaults to Allow and for all types of profile and on the final page enter a name of Minecraft Server. Click Finish.


There is one final action. The VM created sits within a cloud service and the cloud service has the publically accessible IP address. Endpoints are created on that IP address which enable communications on specific ports to be forwarded to specific ports on VMs in the cloud service. You already used one of these endpoints when you RDP’d to the VM earlier, that is using an automatic endpoint that was created to enable RDP access to the VM from the Internet. We will add a new endpoint for the Minecraft port. Open the VMs blade in the Azure portal and select All settings. Select Endpoints where you will see the existing endpoints created. Click Add. Enter a name of Minecraft and set the public and private port to 25565 then click OK.


You are now ready to use your new Minecraft server. Launch the Minecraft client and select Multiplayer. Click Add Server and for the Server Address use your cloud server DNS name, e.g. and click Done.


Select your new server and click Join Server.


And play!


As an optional step you probably want to make yourself an operator for your server. Add to the ops.json file. walks through this process and links to to find your UUID for your account.

For more information on Azure check out my new book and free Windows application.

AzureBookCover AzureAppPicture




Azure Network Security Group and Fault Domain videos

 :: Posted by John Savill on 04-16-2015

Created two new videos. One on Network Security Groups, the other on understanding Fault and Update Domains in Azure. Enjoy!

Two new Azure videos

 :: Posted by John Savill on 04-09-2015

Create two new videos.

Azure Preview Portal Walk-through –

Azure Site Recovery Walk-through –

Mastering Azure IaaS Windows 8.1 App Available!

 :: Posted by John Savill on 04-07-2015

In preparation for my new book, Mastering Microsoft Azure Infrastructure Services ( which comes out end of this month I have completed the companion application.

The application contains all the links and code from the book in addition to videos to help understand the concepts. The app checks for updated content each time it launches and I’ll be continually adding new content to the app so check it often.

You can download the application at or search the Windows Store for SavillTech.


I also updated the Hyper-V application with a bug fix related to scrolling at


Overview of Azure IaaS in 60 minutes

 :: Posted by John Savill on 04-07-2015

Created a new whiteboard based video going over the fundamentals of Azure IaaS. See it at

Three new videos on various “stuff”

 :: Posted by John Savill on 10-05-2014

Been swamped lately as started writing a new book, Mastering Azure Infrastructure Services and also doing a few other projects but this weekend recorded three videos related to a few different topics including Windows 10 Virtual Desktops, Azure Auto-Scale and Operations Manager to Service Manager Alert Lifecycles! Enjoy.

New Demo integrating a hybrid VM deployment with Windows Azure Pack

 :: Posted by John Savill on 07-15-2014

Decided to play with the Windows Azure Pack and specifically offer a hybrid VM deployment which would deploy either via SCVMM to a cloud OR deploy to Azure depending on if the user desired high availability for the VM. I walk through this in video and mini version can be seen below.

I uploaded my runbook to and the sample RDP file to

If you decide to play with this there are a number of things you need to do:

  1. The Orchestrator service account needs to be a SCVMM administrator (as it interfaces via PowerShell to update VM status)
  2. You will need configurations in Orchestrator for Service Manager and SCVMM
  3. You will need to have downloaded your Azure publish settings file which you can do with command Get-AzurePublishSettingsFile and should save this as c:\data\Microsoft Azure Subscription.publishsettings (if you follow my standard configuration)
  4. You need the Azure and SCVMM PowerShell cmdlets installed on the Runbook server or whatever server you configure the PowerShell to run on (I use localhost which means it runs on the runbook server but in larger environment you would likely have a specific PowerShell server(s) )
  5. There are lots of places in the PowerShell with < > that you need to replace with your values and ideally in Get Clouds for user you should use real logic to set values!
  6. In Create Azure VM you need to replace subscription name with your own name as in the Azure Publish Settings File
  7. Make sure the same RDP file is in c:\data as used in Create RDP File activity
  8. Make sure the users in AD have the mail attribute populated

Also I really don’t have error handling in this runbook, it was more a demonstration of what can be done and integration with Windows Azure Pack. I also enabled ADFS for my Windows Azure Pack tenant site and I’ll write that up as a FAQ on over the next 2 weeks. I already have FAQs on installing Windows Azure Pack.

This runbook was done as one long runbook. Normally you would not do that, you would have separate runbooks but to demonstrate the flow and how simple it really is I left it as one big runbook but wanted to be clear this is not best practice.



Have fun!

Mastering Hyper-V 2012 R2 is available!

 :: Posted by John Savill on 04-28-2014

Just wanted to let everyone know my new book is now available. I also wrote a Windows 8.1 application that is free and complements the book offering videos, links and PowerShell for everything referenced in the book which is available at


Let me know what you think!


Quick video on Azure Traffic Manager

 :: Posted by John Savill on 04-02-2014

In this video I walk through what Azure Traffic Manager is and then a demonstration of the technology in action. I wrote about this at

Also available at

New video covering static IP in Windows Azure IaaS

 :: Posted by John Savill on 03-08-2014

A short video on using Static IP addresses in Windows Azure IaaS!

Have a FAQ on it as well at