Unable to RDP to an Azure VM due to a CredSSP Encryption Oracle Remediation error

June 27, 2018 at 7:22 pm in Azure, Cloud, CredSSP, Encryption Oracle Remediation, RDP, Remote Desktop Connection, VM, Windows 10 by Wim Matthyssen

After applying some Windows updates on my Windows 10 Version 1803 home pc I was unable to make a Remote Desktop Connection (RDP) connection to some Microsoft Azure virtual machine(s) (VM).

When I made an RDP connection, I received the following error message:

An authentication error has occurred. The function requested is not supported. Remote computer: <computer name or IP>. This could be due to CredSSP encryption oracle remediation. For more information, see https://go.microsoft.com/fwlink/?linkid=866660.

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What is CredSSP and why did it cause the error

The Credential Security Support Provider protocol (CredSSP) is a security protocol utilized to process authentication requests for separate applications like RDP. It allows you to securely forward credentials encrypted from the Windows client to the target servers for remote authentication.

Because of a critical vulnerability that has been discovered in CredSSP, which affects all versions of Windows and could allow remote attackers to exploit RDP and WinRM to steal data and run malicious code, Microsoft has released security update(s).
You can find the list of the corresponding KB number(s) for each operating system here: https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2018-0886

In my case my recently updated Windows 10 pc could not communicate with a non-updated server (not allowed to setup an insecure RDP connection).

Workaround

To solve the error, first of all, I needed to temporarily change the policy settings on my Windows 10 to gain RDP access to the server.

To do so, open Run and execute gpedit.msc to change the settings in the Local Group Policy Editor. Browse to Computer Configuration / Administrative Templates / System. Open Credentials Delegation in the left pane.

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Change the Encryption Oracle Remediation policy to Enabled, and Protection Level to Vulnerable.

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After this change, I was able to setup an unsecure RDP connection to the server(s) where I installed the missing security update.

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After deploying the specific update on the server(s), I was able to connect to it without the error and with the Encryption Oracle Remediation settings reset to the default.

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This concludes this blog post, hope it helps if you face this error.

Wim Matthyssen (@wmatthyssen)

Azure: Clean up unused, inactive or old directories from your Azure subscription

June 20, 2018 at 9:31 am in AAD, Azure, Azure Active Directory, Azure AD, Azure tenant, B2B, Cloud, GDPR, MyApps by Wim Matthyssen

I am already working as an Azure Consultant/Architect for almost 5 years. In those 5 years I setup a lot of Azure IaaS/PaaS environments for different customers. To do all the necessary work involved in such setup, I mostly was invited to their Azure tenant as admin with my Microsoft account (personal account) or my work account (B2B user) to do all the necessary work. When all the work was done a thing mostly forgotten is to clean up that specific user in Azure Active Directory (AAD), causing that tenant still showing up or even starting as the default directory when logging on to the Azure portal. After a while you could even be unable to be invited to a new tenant because the maximum of 20 AAD’s is reached for that specific account.

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Until some time ago, May 14 2018 to be specific, to unlink those lingering directories you had to contact another global admin of the inviting organization to have that account removed from their AAD tenant. Even as an admin you were not able to delete your own guest account. Sometimes, when a lot of time was passed since you last worked for that customer, finding a global admin for that tenant to delete that user could be a lot of work.

Luckily, thanks to Europe’s General Data Protection Regulation (GDPR), this can now be done in a much easier way. A B2B user can now easily leave an organization on their own (self-service leaving), to which he or she has been invited at any time, without having to contact an administrator.

Keep in mind that when a user leaves an organization, the user account is soft deleted in the directory. By default, the user object moves to the Deleted users state in AAD but is not permanently deleted for 30 days. This soft deletion enables the administrator to restore the user account (including groups and permissions), if the user makes a request to restore the account within that 30-day period.

To leave an organization you can follow the below steps:

Log in with your B2B account at https://myapps.microsoft.com/

When logged in select your name on the access panel in the upper-right corner.

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Under Organizations, select the organization you want to leave.

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Select your name again in the upper-right corner.

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Select Leave organization next to the correct organization.

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When asked to confirm, select Leave.

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After a while you should receive an email at that specific account, telling you that you left the organization.

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Repeat these steps if you need to leave any other organization you are associated with.

Hope this helps and thanks to my colleague Guido (@ggibens) for pinpointing me to this new simplified capability.

Wim Matthyssen (@wmatthyssen)

Windows 10: Set Display, Apps and websites language to English (United States) and keyboard to Belgian (Period)

June 14, 2018 at 9:25 am in Belgian (Period), Belgian beers, belgian chocolates, Belgium, ITPro, Keyboard shortcut, Keyboards, scugbe, Windows 10, Windows Apps, Windows Display Language by Wim Matthyssen

When you install and set up Windows 10, you’re asked to choose a default system language. Normally, you do not need to change the language after the initial setup but there might be some situations where you do. I ‘m a Belgian and working as an ITPro in that small country which has the best chocolates and beers, I like to have my Windows 10 display language and Windows Apps language set to English (United States) and my keyboard to Belgian period (Azerty).

However, when you deploy Windows 10, with country or region set to Belgium and system language set to English as a preferred language also Nederlands (België) is installed as first language for Apps and websites.

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So even if your Windows display language is all set to English whenever you open a website or Windows App the language used is Dutch.

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For me this is a little bit annoying. I know this can come in handy, if you’re bi-lingual and you type documents in Dutch, but also enter commands in Command Prompt in English, but for me that’s not the case. But if you prefer you can set the language on a per-app basis and then Windows will remember which language you prefer to use in that particular app. There is even a keyboard shortcut if you want to switch manually between two or more languages. Just press the Left Alt + Shift keys together to switch between languages on the fly.

To set my Windows display and Windows App (+ websites) language to English and set my keyboard to Belgian (Period) I followed the below steps.

Open All settings (or press the Windows key + I) to open the Windows Setttings page and then click Time & Language.

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Select Region & language on the left.

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At the Preferred languages topic, you can choose to set Nederlands (België) as the second language or choose to Remove this language. I choose to Remove this language completely (to be able to Remove a language you also need to set if first as the second language, otherwise you are not able to delete it).

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If you Remove a first language you also need check and possible set your preferred keyboard language at the first language shown. To do so select the language and click Options.

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Because English Unites States uses US (QWERTY), which I do not want to use. I first I need to add my second preferred keyboard. Press Add a keyboard and select the Belgian (Period) keyboard. When added you can remove the US (QWERTY) keyboard.

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Now your all done. Like you can see the Windows display, website(s) and Windows App language are all set to English and I can type with my preferred Azerty keyboard settings.

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Hope this comes in handy for the Belgium people. Till next time!

Wim Matthyssen (@wmatthyssen)

Azure Backup Server: Unprotected servers still showing up in the Azure portal even though their protection was stopped 3 months ago

June 11, 2018 at 9:49 am in Azure, Azure Backup, Azure Backup Server, Azure portal, Cloud, Cloud backup, MABS, MABS v2 by Wim Matthyssen

 

To help protect your hybrid backup setup with an Azure Backup Server (MABS), Microsoft introduced some security features built on three principals – Prevention, Alerting and Recovery. These features are enabled by default for newly create Recovery Services vaults, for existing vaults this link will show you how you can enable them. One of these features related to recovery will ensure you that Azure backup will retain all deleted backup data for 14 days, which ensures you can recover data using any old or recent recovery point(s).

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Sometime ago I reconfigured a Protection Group which protected some Hyper-V VMs. Two Domain Controllers (DCs) were taken out of the Group and setup to only backup the C drive and the System State. On the MABS server all configuration went well and did not cause any specific issues or errors. However last week when I was checking the Recovery Services vault used to store the cloud backups,I noticed those two DCs were still showing up in the Backup items overview.

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Like you can see, those two VMs are still there with no Disk or Cloud Recovery Points created after the protection was disabled.

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To get the issue fixed, I followed some standard steps I always follow when having issues with a MABS. The first one is checking the current Azure Backup Agent version installed on the MABS, which was version 2.0.9109.0. Because there is a newer version available (at the time of writing version 2.0.9118.0), step one was getting that one in place.

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To download the latest agent go to your Recovery Services vault blade in the Azure portal. Select Backup and on the Getting Started with Backup blade, select Backup goal. In the drop-down menu(s), select On-premises and Files and folders, click OK. In the Prepare Infrastructure blade, click Download Agent for Windows Server or Windows Client. Save MARSAgentInstaller.exe.

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Install the latest agent on the MABS server. After the agent installation completes restart the following service:

Microsoft Azure Recovery Services Management Agent

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Although the agent is now at the latest version it still did not fix the protection status of the deleted servers in the Azure portal.

After doing a little more troubleshooting (reading the logs, etc.) , I decided to open an Azure support ticket. The support agent who assisted me, told me, just like I already suspected, that this was currently  the default behavior from the azure backup service in some Azure regions (current backend design behavior like they say). The product team was already aware of this issue and they definitively will fix it in some later update.

If you cannot wait for the update, there is a quicker fix for the issue, you just need to delete the whole MABS server from the Azure portal and reconnect the server all over again. However, for me and even more for the customer this was a no go. So, we will wait for the proper backend update which will hopefully not take that long anymore.

Hope this helps whenever you face the same backup behavior in the Azure portal with your deleted MABS backups.

Wim Matthyssen (@wmatthyssen)

Azure Tip: Use Ctrl+Alt+D to check Azure Portal load times

May 7, 2018 at 6:55 pm in Azure, Azure portal, Azure Tip, Cloud, Keyboard shortcut by Wim Matthyssen

 

The Azure Portal is the go-to place to manage all of your Azure services in one hub. I myself spend a lot of time in the portal to build, deploy, modify and manage customers cloud resources. I am sure a lot of you do the same.

But sometimes this portal feels slow without any specific reason and then it is really difficult to find out why. Whenever that is the case there is a keyboard shortcut you can use to check the portal load time of all opened blades.

If you press the keyboard shortcut CTRL + ALT + D you can see the load time and other useful information for every title.

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Pressing CTRL + ALT + D again will remove the portal load information.

Beside this useful keyboard shortcut there are some others you can use specifically for the Azure portal. You can open the Keyboard shortcut help item in the Help Menu on the top-right of the portal to see all of these shortcuts.

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Hope it helps!

Wim Matthyssen (@wmatthyssen)

Creation of an Azure VPN gateway failed due to associated NSG

May 4, 2018 at 8:53 am in Azure, Cloud, GatewaySubnet, NSG, VNet, VPN gateway by Wim Matthyssen

 

A VPN gateway is a specific type of virtual network gateway that sends encrypted traffic between your virtual network (VNet) and your on-premises location across a public connection. You can also use a VPN gateway to send traffic between virtual networks across the Azure backbone.

While deploying such a gateway trough the Azure portal, the creation took a very long time and in the end the deployment Failed.

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In the Activity log the following Error Code was showed.

OnlyTagsSupportedForPatch

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After some troubleshooting and reviewing the complete VNet deployment, which was done through Azure PowerShell, I finally found out what caused the gateway deployment to fail.

An important remark is mentioned in the Microsoft technical documentation for creating a Site-to-Site connection in the Azure portal. It states that you may not associate a network security group (NSG) to the gateway subnet, which in my case was causing the issue.

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The Azure PowerShell script used to setup the VNet and all of its Subnets also created NSGs for all subnets, the GatewaySubnet included.

To resolve the issue, I deleted the Failed gateway and set the Network security group for the GatewaySubnet to None.

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Afterwards the creation of the gateway succeeded without any issues.

 

Conclusion

When you create a gateway subnet for your VNet you should never associated a NSG to it. This is not supported and the gateway will stop functioning as expected or completely fail. Always set the NSG to ‘None’. The gateway subnet also needs to be named ‘GatewaySubnet’ to work properly and never deploy any VMs or anything else to it.

Wim Matthyssen (@wmatthysen)

PowerShell: Download Microsoft Azure, Cloud and Enterprise Symbol / Icon set for Visio

April 24, 2018 at 12:14 pm in Azure, Microsoft Azure, Microsoft CloudnEnterprise Symbols, Microsoft Visio, PowerShell, Visio, Visio Stencil by Wim Matthyssen

 

The Microsoft Azure, Cloud and Enterprise Symbol / Icon Set package is available as a free download from Microsoft and includes icons for almost all Azure services and Microsoft cloud related technologies currently available. These icons and PNG files come in handy when making visual representations in Azure related architectural designs or when making project documentation to deliver to a customer.

To automate the download and install process of this useful package, I wrote the below PowerShell script which does all of the following:

  • Download the Microsoft_CloudnEnterprise_Symbols_v2.7.zip file
  • Extract the ZIP file to the My Shapes folder (the My Shapes folder is the default-working folder for Visio and is created during the installation of Visio).
  • Delete the ZIP file after extraction.

Before running the script, you should keep the following things in mind:

  • The script will exit if the My Shapes folder does not exist, the advice I would give is to install Visio first before using the Symbols package.
  • The script will exit if the Symbols package v2.7 is already installed in the My Shapes folder.
  • The symbol package itself is supported on the following Operation Systems: Windows 10, Windows 7, Windows 8 and Windows 8.1
  • You should remove any previous version of the symbol set so you can avoid duplicate and deprecated symbols.

PowerShell script

If you prefer you can download the complete script from the TechNet gallery.

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Use with Visio

To use these stencils with Visio, open Visio and create a new Blank Drawing or use any other available template. Select More Shapes – My Shapes – Microsoft_CloudnEnterprise_Symbols_v2.7KP – Symbols and select any of the available choices.

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Use with Word

To use the .PNG files with Word, open Word and create a new Blank document. Select Insert – Pictures and browse to your My Shapes folder. Open the Symbols folder located under the Microsoft_CloudnEnterprise_Symbols_v2.7KP folder. Browse to a PNG folder located under any of the shown folders and there you can find all available .PNG files.

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This concludes this blog post, have fun using all these Azure symbols to visual enhance your Visio or Word cloud designs.

Wim Matthyssen (@wmatthyssen)

Azure Backup: Upgrade your Recovery Services Vault to enable support for large disk backups

April 5, 2018 at 6:59 am in Azure, Azure Backup, Cloud, Recovery Services vault by Wim Matthyssen

 

On March 13, 2018 the Azure Backup team announced the general availability for backup of Azure IaaS Virtual Machines (VMs) with large disks (1 to 4 TB), both managed and unmanaged. At the same time they released a set of other improvements to speed up the overall backup and restore process.

To enable these new features a one-time, one-directional upgrade must be done for every Azure Subscription where you wish to use these enhancements. Good to know is that this VM backup stack upgrade, can be started from any vault in your Subscription and will retain all your existing policies and recovery points.

 

Upgrade procedure

 

Open the Azure portal and login with you Azure credentials.

Go to your Recovery Services vault dashboard, on the top of the blade you will need to click the banner which says Support for > 1 TB disk VMs and improvements to backup and restore speed ->. If you do need see a banner, you can open Properties, go to VM backup stack and click Upgrade.

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The Upgrade to new VM backup stack blade will open. Click on Upgrade.

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The upgrade procedure will start, be aware that this process could take up to two hours.

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Have fun backing up Azure VMs with these new enhancements. Till next time!

Wim Matthyssen (@wmatthyssen)

Windows Server 2019 (vNext) LTSC Preview – Build 17623 available for download

March 21, 2018 at 7:24 pm in Build 17623, Microsoft Tech Community, Windows Server 2019, Windows Server Insider, WS2019 by Wim Matthyssen

Yesterday Microsoft announced that Windows Server 2019 would be generally available in the second half of 2018, together with System Center 2019. As expected, this next-gen (vNext) Server OS is built on top of Windows Server 2016 and will focus on the following main areas: hybrid, security, application platform and hyper-converged infrastructures. Good to know is that Windows Server 2019 is a Long-Term Servicing Channel (LTSC) release, which means it will have 5 years of mainstream support and 5 years of extended support.

Whit this announcement Microsoft also released the first preview build (17623) of Windows Server 2019 LTSC to the public, which contains both the Desktop Experience as well as the Server Core edition in all 18-server languages.

To get started with the download of this Preview build, you need to be a member of Windows Server Insider program. If you are not yet registered for this Insider program, you can do so over here. Keep in mind that you can sign up with an organization or a personal account.

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As a registered Insider, you can head over to the Windows Server Insider Preview download page. Under available Downloads you can now download the 4.2 GB ISO file. This build, which expires on 02/06/18, requires an activation key during setup. The following keys are allowed for unlimited activations:

  • Datacenter Edition 6XBNX-4JQGW-QX6QG-74P76-72V67
  • Standard Edition MFY9F-XBN2F-TYFMP-CCV49-RMYVH

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When downloaded you can install the Windows Server 2019 OS from the ISO image on a virtual machine (VM) or on a physical server.

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Have fun testing out this build and do not forget to provide your feedback to Microsoft using the Windows Feedback Hub app, or through the Windows Server space in the Microsoft Tech community.

Wim Matthyssen (@wmatthyssen)

Azure Tip: How to find your Subscription ID (GUID)

March 12, 2018 at 10:00 pm in Azure, Azure portal, Azure PowerShell, Azure Subscription ID, Azure Tip, Microsoft Azure, Subscription ID by Wim Matthyssen

 

The Subsciption ID is a 32-digit GUID, which is associated with an Azure Subscription.  Some situations require you to know this Subscription ID, such as when you open a new Azure support ticket. This post will show you how you can quickly retrieve this ID via the Azure portal or via Azure PowerShell.

 

Azure Portal

Open a New Inprivate window in Edge (or any other browser) and browse to https://portal.azure.com where you Sign in with your account.

Select All services and click on Subscriptions which you can find under the GENERAL field.

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A new blade, the Subscriptions pane, will open showing all your subscriptions, select the appropriate one and under SUBSCRIPTION ID you will find the corresponding ID you where looking for.

2018-03-12_21-43-47

 

Azure PowerShell

Open a PowerShell window with Administrator privileges.

Type Login-AzureRmAccount and provide your Azure credentials (email address and password).

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When you are logged in, all information of your default subscription will be shown and you can find your Subscription ID in the SubscriptionId field.

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When you have more than one subscription you can find the Subscription ID of a specific Subscription by typing Get-AzureRmSubscription. This command will list all of your subscriptions, with details like the SubscriptionId, which are associated with the logged in account.

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Hope it helps.

Wim Matthyssen (@wmatthyssen)