Author: rzomerman

  • Azure B2B and internal applications

    Azure Active Directory released the functionality for B2B a few months ago. This new feature enables companies to extend their identity service as well as their applications beyond traditional borders. Say, you want to provide your vendor a mailbox in YOUR Office 365 tenant. That way the vendor can still read/write emails on behalf of…

  • Enabling on-premises MFA in AAD : when it just doesn’t work…

    When you want to enable MultiFactorAuthentication (MFA) for Azure / Intune / Office 365 / Dynamics 365 and you are using federated logins and want to have the MFA provider to be on-premises (integrated with ADFS/PingFed/other) integrated.. you might run into an issue where the Azure MFA page keeps popping-up and asking you to register…

  • Add disks to VMs in Azure

    Sometimes you have the need to add additional disks to VM’s in Azure.. and if you happen to manage a big farm of servers and all servers need to have additional disks, you find yourself in the portal a lot.. or in Powershell hacking your way through variables and collections.. This script will help you…

  • Unused Azure Resource cleanup

    When using Azure as your development platform, or to play with.. you eventually find yourself deleting resources 1 by 1 or entire resource groups.. cause when you delete a VM in ARM (the new portal), it deletes only the VM, but leaves the VHD, the NIC, the public IP, and NGS’s… so what if you could run a script…

  • PowerBI Gateway and Proxies

    The PowerBI Gateway can be used to connect on-premises database sources into PowerBI, Microsoft Flow, Logic Apps and PowerApps. The advantages are many, and if installed correctly it will work flawlessly. However, the default install of the connector is based on the gateway being able to connect directly to the internet. While it’s the fastest…

  • UPN Change of user not updated in AAD (O365/Intune/other)

    When you want to change the user UPN, in certain conditions, this UPN change will not be synchronized to AAD (Office365/Intune/other).. why? When you have federated domains for Office 365, or rather AAD in general and you want to switch your users from one domain to another, you will notice that that object will replicate…

  • Selective password synchronization with AAD-Connect

    In my previous post, I talked about the possibility of using Kerberos Constraint Delegation to avoid having passwords in AAD. However, sometime you want to have a few passwords in AAD-Domain Services to ensure that administrators can still login to the VM’s interactively (RDP) or users are able to use certain services that are not…

  • ADFS behind Azure Traffic Manager

    When you have ADFS hosted on Azure (as per my previous post), you might want to look at using Traffic Manager and then especially the probes and the endpoints.. Euhm.. oops.. this is embarrassing… we’ve found a bug. Well one of my readers did and I investigated further. When you follow the directions as below,…

  • AAD-DS + KCD-PT + Federation (or how to avoid passwords on the cloud)

    New (and only available within Azure) are the Azure Active Directory Domain Services. This service is based on Azure Active Directory and the data replicated into it. It provides Domain Services as a service to subscription administrators and can be very useful for many scenario’s where domain services are required, but security or management of…

  • Redundant SRX Junos to Azure VPN with VNET Peering

    Ever since playing with BGP I was looking for a way to make redundant tunnels. As the local internet provider here would only allow me a single IP address, I looked at the other side. What if we have two Azure regions that have a VPN tunnel to my SRX and between each other. Routing…

  • Azure Network Architectures (Marketplace FW's)

    Many companies struggle with concepts of “cloud networks” and how it relates to their on-premises networks. How do you deploy a firewall in there, with multiple subnets? Do we need multiple VNET’s and what about those subnets? Well, this post is about what you actually need to understand prior to deploying 3rd party firewalls (and/or VNets) and…

  • Juniper SRX Junos Azure BGP VPN Tunnel

    Hosting applications in Azure usually requires some form of connection to the on-premises networks. You could use Point-to-Site dialup or ExpressRoute, but Site-2-Site VPN’s seems the most use technology, and certainly is cheaper than ExpressRoute connection. But what if you want to use multiple links for failover? What if your local firewall fails or the…