This week, while troubleshooting a networking problem for a customer, I wanted to limit or block network connectivity to some remote endpoints from a test workstation. To accomplish this, I created a quick PowerShell function to null route the traffic (send it to an invalid/null next hop). You can copy/paste this and save it as…
Yesterday, I was asked if I had developed any testing tools for the Dynamics CRM suite availability—but, never having had to do much with them, I didn’t have anything available. I just built a quick tool today, and it covers all of the endpoints listed at https://support.microsoft.com/en-us/help/2655102/internet-accessible-urls-required-for-connectivity-to-microsoft-dynami and https://msdn.microsoft.com/en-us/library/gg328127.aspx, broken apart by region, with the…
A few months ago, I debuted a new tool for AAD Connect deployment (read about it here: AAD Connect Network and Name Resolution Test or download it here: https://gallery.technet.microsoft.com/Azure-AD-Connect-Network-150c20a3) which allows you to test a number of conditions to make sure your server and environment are suitable for deploying AAD Connect. This week, I needed…
Update: I’ve added several additional parts to this tool since it was originally released, including some debug logging, an Azure credential check to ensure that your identity is part of Global Admins, additional cloud endpoint checks, and a more thorough system inventory. While assisting some of my customers last year on an multi-forest AAD Connect…
This week, I had an interesting issue to resolve–one of my customers previously hosting their architecture on-premises was utilizing geo-filtering services provided by their ISP. These geofiltering services were provided at the network layer, so filtered requests never reached the environment. In order to respond to regionally sourced threats, my customer wanted to carry over…
