Setting Up a Basic Azure Network

Akins IT • October 21, 2019
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SECURING YOUR AZURE VIRTUAL NETWORK WITH A NG FIREWALL


PART 1- SETTING UP A BASIC AZURE NETWORK


When setting up your Azure Virtual Network (VNET), there are some things to consider before getting started. You’ll want to first determine which location to deploy to, such as West US or Central US, since this will impact your latency between Microsoft’s Data centers and your physical sites or remote users. It’s also worth noting that location also impacts VM pricing to a degree.

The next step is to determine your overall design and topology. What will the virtual network be and how will you secure and connect this environment back to your on-prem infrastructure. Your virtual network should be configured using a range that won’t overlap with your existing networks – both presently and later down the road. If your existing network uses the Class C (192.168.0.0/16) IP address range for example, opt to use a Class A (10.0.0.0/8) instead for your Azure Virtual Network. This will ensure that no overlap will occur and allows for high scalability in your Azure environment.

By Shawn Akins October 20, 2025
October 20, 2025 — Early today, Amazon Web Services experienced a major incident centered in its US‑EAST‑1 (N. Virginia) region. AWS reports the event began around 12:11 a.m. PT and tied back to DNS resolution affecting DynamoDB , with mitigation within a couple of hours and recovery continuing thereafter. As the outage rippled, popular services like Snapchat, Venmo, Ring, Roblox, Fortnite , and even some Amazon properties saw disruptions before recovering. If your apps or data are anchored to a single cloud, a morning like this can turn into a help‑desk fire drill. A multi‑cloud or cloud‑smart approach helps you ride through these moments with minimal end‑user impact. What happened (and why it matters) Single‑region fragility: US‑EAST‑1 is massive—and when it sneezes, the internet catches a cold. Incidents here have a history of wide blast radius. Shared dependencies: DNS issues to core services (like DynamoDB endpoints) can cascade across workloads that never directly “touch” that service. Multi‑cloud: practical resilience, not buzzwords For mid‑sized orgs, schools, and local government, multi‑cloud doesn’t have to mean “every app in every cloud.” It means thoughtful redundancy where it counts : Multi‑region or multi‑provider failover for critical apps Run active/standby across AWS and Azure (or another provider), or at least across two AWS regions with automated failover. Start with citizen‑facing portals, SIS/LMS access, emergency comms, and payment gateways. Portable platforms Use Kubernetes and containers, keep state externalized, and standardize infra with Terraform/Ansible so you can redeploy fast when a region (or a provider) wobbles. (Today’s DNS hiccup is exactly the kind of scenario this protects against.) Resilient data layers Replicate data asynchronously across clouds/regions; choose databases with cross‑region failover and test RPO/RTO quarterly. If you rely on a managed database tied to one region, design an escape hatch. Traffic and identity that float Use global traffic managers/DNS to shift users automatically; keep identity (MFA/SSO) highly available and not hard‑wired to a single provider’s control plane. Run the playbook Document health checks, automated cutover, and comms templates. Then practice —tabletops and live failovers. Many services today recovered within hours, but only teams with rehearsed playbooks avoided user‑visible downtime. The bottom line Cloud concentration risk is real. Outages will happen—what matters is whether your constituents, students, and staff feel it. A pragmatic multi‑cloud stance limits the blast radius and keeps your mission‑critical services online when one provider has a bad day. Need a resilience check? Akins IT can help you prioritize which systems should be multi‑cloud, design the right level of redundancy, and validate your failover plan—without overspending. Let’s start with a quick, 30‑minute review of your most critical services and RPO/RTO targets. (No slideware, just actionable next steps.)
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