Thoughts from the clouds
In my recent blog series Private Link reality bites I briefly mentioned the possibility of inspecting Service Endpoints with Azure Firewall, and many have asked for more details on that configuration. Here we go! First things first: what the heck am I talking about? Most Azure services such as Azure Storage, Azure SQL and many … Continue reading Azure Firewall and Service Endpoints
Welcome to the sixth post in the Private Link Reality Bites series! Before we begin, let me recap the existing episodes of the series: This question is as old as Private Link itself. Countless blog posts have already been written about it, not to mention this brief answer in the Private Link FAQ. Still, there are some … Continue reading Private Link reality bites – service endpoints vs private link
Welcome to the third post in the Private Link Reality Bites series! Before we begin, let me recap the existing episodes of the series: Big shoutout here to my esteemed colleague and oracle for Azure Networking Daniel Mauser. If you don’t know his GitHub site, make sure you check it out! Thanks as well to … Continue reading Private Link reality bites: what’s my source IP?
Welcome to the second post in the Private Link Reality Bites series! Before we begin, let me recap the existing episodes of the series: In this post I am going to explore something that silently has started to work in a different way as it used to: routing in the GatewaySubnet, or how to send … Continue reading Private Link reality bites – Your routes might be lying
I have recently expanded my SDWAN in hub-and-spoke networks design guide to include SDWAN-to-firewall routing. Initially I didn’t have this point, but recent conversations have made me realize that not everybody understand this. The main difficulty in this topic is related to the fact that you cannot inspect the effective routes of your Virtual Network … Continue reading Do not let ExpressRoute, VPN and SDWAN traffic bypass your firewall
Designing network connectivity in public cloud can very quickly become a daunting task. Of course, public cloud providers do offer native networking services, and with those it is fairly easy. This should always be your primary route (pun intended). For example, in the case of Azure, using Virtual WAN and its native integration with both … Continue reading Designing your SDWAN and Firewall into Azure Hub and Spoke
Virtually every expert out there recommends following an Infrastructure-as-Code approach to manage Azure Networks, and even more so when dealing with traffic segmentation features such as firewall rulesets and network security groups (those tend to change more frequently than other resources). And yet, there is surprisingly little guidance on how to do so, and about … Continue reading Deploy (Azure) Network-as-Code as a champ
If you have ever used Azure, you probably have used one of these Virtual Network Gateways too: whether it is to connect your branches and headquarters with Azure via IPsec VPN or ExpressRoute, or to provide connectivity to your mobile workers or external partners through Point-to-Site VPNs. In this post I will go deep on … Continue reading Virtual Network Gateways routing in Azure
If you are reading my blog you probably know what Virtual WAN and Azure Kubernetes Service are. You probably know as well that you can configure AKS so that egress traffic is sent through an Azure Firewall by using Azure routing as described in the article Control Egress Traffic in AKS. That article explains how … Continue reading Filtering AKS egress traffic with Virtual WAN
As you might already know, there are a couple of ways of filtering traffic in Azure Virtual Networks: Network Security Groups (NSGs) and Azure Firewall. NSGs offer unlimited performance for Layer 4 filtering, while Azure Firewall is more powerful with features like deep packet inspection or application-level intelligence. However, even if these solutions follow a … Continue reading Combining Azure Firewall and Flow Log analysis
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