fix or remove longstanding broken links

Author: v-thepet

articles/active-directory/devices/howto-vm-sign-in-azure-ad-windows.md

@@ -60,10 +60,10 @@ The following Azure regions are currently supported during the preview of this f
 
 To enable Azure AD authentication for your Windows VMs in Azure, you need to ensure your VMs network configuration permits outbound access to the following endpoints over TCP port 443:
 
-- https://enterpriseregistration.windows.net
-- https://login.microsoftonline.com
-- https://device.login.microsoftonline.com
-- https://pas.windows.net
+- https:\//enterpriseregistration.windows.net
+- https:\//login.microsoftonline.com
+- https:\//device.login.microsoftonline.com
+- https:\//pas.windows.net
 
 ## Enabling Azure AD login in for Windows VM in Azure
 
@@ -246,15 +246,15 @@ The AADLoginForWindows extension must install successfully in order for the VM t
 
 1. Ensure the required endpoints are accessible from the VM using the command line:
 
-   - curl https://login.microsoftonline.com/ -D –
-   - curl https://login.microsoftonline.com/`<TenantID>`/ -D –
+   - curl https:\//login.microsoftonline.com/ -D –
+   - curl https:\//login.microsoftonline.com/`<TenantID>`/ -D –
 
    > [!NOTE]
    > Replace `<TenantID>` with the Azure AD Tenant ID that is associated with the Azure subscription.
 
-   - curl https://enterpriseregistration.windows.net/ -D -
-   - curl https://device.login.microsoftonline.com/ -D -
-   - curl https://pas.windows.net/ -D -
+   - curl https:\//enterpriseregistration.windows.net/ -D -
+   - curl https:\//device.login.microsoftonline.com/ -D -
+   - curl https:\//pas.windows.net/ -D -
 
 1. The Device State can be viewed by running `dsregcmd /status`. The goal is for Device State to show as `AzureAdJoined : YES`.
 
@@ -281,15 +281,15 @@ This Exit code translates to DSREG_AUTOJOIN_DISC_FAILED because the extension is
 
 1. Verify the required endpoints are accessible from the VM using the command line:
 
-   - curl https://login.microsoftonline.com/ -D –
-   - curl https://login.microsoftonline.com/`<TenantID>`/ -D –
+   - curl https:\//login.microsoftonline.com/ -D –
+   - curl https:\//login.microsoftonline.com/`<TenantID>`/ -D –
 
    > [!NOTE]
    > Replace `<TenantID>` with the Azure AD Tenant ID that is associated with the Azure subscription. If you need to find the tenant ID, you can hover over your account name to get the directory / tenant ID, or select Azure Active Directory > Properties > Directory ID in the Azure portal.
 
-   - curl https://enterpriseregistration.windows.net/ -D -
-   - curl https://device.login.microsoftonline.com/ -D -
-   - curl https://pas.windows.net/ -D -
+   - curl https:\//enterpriseregistration.windows.net/ -D -
+   - curl https:\//device.login.microsoftonline.com/ -D -
+   - curl https:\//pas.windows.net/ -D -
 
 1. If any of the commands fails with "Could not resolve host `<URL>`", try running this command to determine the DNS server that is being used by the VM.
 

articles/data-factory/v1/data-factory-customer-case-studies.md

@@ -22,20 +22,5 @@ Data Factory is a cloud-based information management service that automates the
 ## Rockwell Automation
 [Industrial Automation Firm Cuts Costs up to 90 Percent with big data Solutions](https://customers.microsoft.com/en-us/story/726192-industrial-automation-firm-cuts-costs-up-to-90-percent)
 
-## Ziosk
-[What game you want to go with that burger? Ziosk may already know.](https://customers.microsoft.com/Pages/CustomerStory.aspx?recid=18294)
-
-## Alaska Airlines
-[Airline Uses Tablets, Cloud Services to Offer More Engaging In-Flight Entertainment](https://customers.microsoft.com/Pages/CustomerStory.aspx?recid=19357)
-
-## Tacoma public schools
-[Predicting student dropout risks, increasing graduation rates with cloud analytics](https://customers.microsoft.com/Pages/CustomerStory.aspx?recid=20703)
-
-## Real Madrid FC
-[Real Madrid brings the stadium closer to 450 million fans around the globe, with the Microsoft Cloud](https://customers.microsoft.com/Pages/CustomerStory.aspx?recid=20522)
-
-## Pier 1 Imports
-[Finding a Better Connection with Customers through Cloud Machine Learning](https://customers.microsoft.com/Pages/CustomerStory.aspx?recid=11257)
-
 ## Microsoft Studio
 [Delivering epic Xbox experiences by analyzing hundreds of billions of game events each day](https://customers.microsoft.com/en-us/story/xboxunlimited)

articles/virtual-machines/linux/create-upload-openbsd.md

@@ -27,7 +27,7 @@ This article assumes that you have the following items:
 
 * **An Azure subscription** - If you don't have an account, you can create one in just a couple of minutes. If you have an MSDN subscription, see [Monthly Azure credit for Visual Studio subscribers](https://azure.microsoft.com/pricing/member-offers/msdn-benefits-details/). Otherwise, learn how to [create a free trial account](https://azure.microsoft.com/pricing/free-trial/).  
 * **Azure CLI** - Make sure you have the latest [Azure CLI](/cli/azure/install-azure-cli) installed and logged in to your Azure account with [az login](/cli/azure/reference-index).
-* **OpenBSD operating system installed in a .vhd file** - A supported OpenBSD operating system ([6.2 version AMD64](https://ftp.openbsd.org/pub/OpenBSD/6.2/amd64/)) must be installed to a virtual hard disk. Multiple tools exist to create .vhd files. For example, you can use a virtualization solution such as Hyper-V to create the .vhd file and install the operating system. For instructions about how to install and use Hyper-V, see [Install Hyper-V and create a virtual machine](https://technet.microsoft.com/library/hh846766.aspx).
+* **OpenBSD operating system installed in a .vhd file** - A supported OpenBSD operating system ([6.6 version AMD64](https://ftp.openbsd.org/pub/OpenBSD/6.6/amd64/)) must be installed to a virtual hard disk. Multiple tools exist to create .vhd files. For example, you can use a virtualization solution such as Hyper-V to create the .vhd file and install the operating system. For instructions about how to install and use Hyper-V, see [Install Hyper-V and create a virtual machine](https://technet.microsoft.com/library/hh846766.aspx).
 
 
 ## Prepare OpenBSD image for Azure

articles/virtual-machines/linux/create-upload-ubuntu.md

@@ -21,7 +21,7 @@ Ubuntu now publishes official Azure VHDs for download at [https://cloud-images.u
 * Ubuntu 12.04/Precise: [ubuntu-12.04-server-cloudimg-amd64-disk1.vhd.zip](https://cloud-images.ubuntu.com/precise/current/precise-server-cloudimg-amd64-disk1.vhd.zip)
 * Ubuntu 14.04/Trusty: [ubuntu-14.04-server-cloudimg-amd64-disk1.vhd.zip](https://cloud-images.ubuntu.com/releases/trusty/release/ubuntu-14.04-server-cloudimg-amd64-disk1.vhd.zip)
 * Ubuntu 16.04/Xenial: [ubuntu-16.04-server-cloudimg-amd64-disk1.vmdk](https://cloud-images.ubuntu.com/releases/xenial/release/ubuntu-16.04-server-cloudimg-amd64-disk1.vmdk)
-* Ubuntu 18.04/Bionic: [bionic-server-cloudimg-amd64.vhd.zip](https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.vhd.zip)
+* Ubuntu 18.04/Bionic: [bionic-server-cloudimg-amd64.vmdk](https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.vmdk)
 * Ubuntu 18.10/Cosmic: [cosmic-server-cloudimg-amd64.vhd.zip](http://cloud-images.ubuntu.com/releases/cosmic/release/ubuntu-18.10-server-cloudimg-amd64.vhd.zip)
 
 ## Prerequisites

articles/virtual-machines/linux/deploy-ibm-db2-purescale-azure.md

@@ -149,6 +149,4 @@ For more information about these and other known problems, see the kb.md file in
 
 -   [IBM Data Studio](https://www.ibm.com/developerworks/downloads/im/data/index.html/)
 
--   [Platform Modernization Alliance: IBM DB2 on Azure](https://www.platformmodernization.org/pages/ibmdb2azure.aspx)
-
 -   [Azure Virtual Data Center Lift and Shift Guide](https://azure.microsoft.com/resources/azure-virtual-datacenter-lift-and-shift-guide/)

articles/virtual-machines/workloads/mainframe-rehosting/concepts/mainframe-compute-azure.md

@@ -134,6 +134,5 @@ Each tier can also provide appropriate disaster recovery services. For example,
 
 ### More migration resources
 
-- [Platform Modernization Alliance: IBM Db2 on Azure](https://www.platformmodernization.org/pages/ibmdb2azure.aspx)
 - [Azure Virtual Data Center Lift and Shift Guide](https://azure.microsoft.com/resources/azure-virtual-datacenter-lift-and-shift-guide/)
 - [GlusterFS iSCSI](https://docs.gluster.org/en/latest/Administrator%20Guide/GlusterFS%20iSCSI/)

articles/virtual-machines/workloads/mainframe-rehosting/concepts/mainframe-storage-azure.md

@@ -123,6 +123,5 @@ Blob storage provides the largest volume of storage on Azure. In addition to sto
 
 ### More migration resources
 
-- [Platform Modernization Alliance: IBM Db2 on Azure](https://www.platformmodernization.org/pages/ibmdb2azure.aspx)
 - [Azure Virtual Data Center Lift and Shift Guide](https://azure.microsoft.com/resources/azure-virtual-datacenter-lift-and-shift-guide/)
 - [GlusterFS iSCSI](https://docs.gluster.org/en/latest/Administrator%20Guide/GlusterFS%20iSCSI/)

articles/virtual-machines/workloads/mainframe-rehosting/overview.md

@@ -110,7 +110,7 @@ To get started, download [Microsoft Azure Government cloud for mainframe applica
 
 ## Next steps
 
-Ask our [partners](partner-workloads.md) to help you migrate or rehost your mainframe applications. For detailed guidance about choosing a partner solution, see the [Platform Modernization Alliance](https://www.platformmodernization.org/pages/mainframe.aspx) website.
+Ask our [partners](partner-workloads.md) to help you migrate or rehost your mainframe applications. 
 
 See also: