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Practical Azure architecture for security, identity, and regulated workloads

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Practical Azure architecture for security, identity, and regulated workloads

Azure Hub-and-Spoke Network Topology: A Practical Guide

  • Cloud
  • 18 mins

Most Azure environments do not start with a network design. They start with a virtual network, then another, then a third spun up by a different…

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Azure Landing Zone Networking: Self-Managed Hub-and-Spoke vs Azure Virtual WAN

  • Architecture
  • 15 mins

Every landing zone has a network topology. Almost nobody decides it. The platform team installs the reference architecture. Hub-and-spoke comes pre-drawn in the Cloud Adoption Framework…

Read MoreAzure Landing Zone Networking: Self-Managed Hub-and-Spoke vs Azure Virtual WAN

The Five Azure Landing Zone Decisions That Actually Matter

  • Architecture
  • 19 mins

Most Azure landing zone decisions get made before anyone calls them decisions. The organization buys into the Cloud Adoption Framework, the platform team installs the reference…

Read MoreThe Five Azure Landing Zone Decisions That Actually Matter

Microsoft Entra Identity Management for Cloud Architecture

  • Architecture
  • 5 mins

Microsoft Entra identity management forms the foundation of modern cloud security. In today’s cloud-first and hybrid environments, identity has effectively replaced the traditional network perimeter as the…

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Microsoft Entra ID Free vs Premium for Cloud Teams

  • Cloud
  • 9 mins

Microsoft Entra ID Free vs Premium sits at the center of modern identity and access management. It supports Microsoft cloud workloads and many third-party SaaS apps.…

Read MoreMicrosoft Entra ID Free vs Premium for Cloud Teams

Managing Multiple Azure Tenants for Enterprise Cloud Environments

  • Architecture
  • 6 mins

Managing multiple Azure tenants is a common challenge when Azure environments scale across enterprises, partners, and SaaS platforms. Whether you are working for an enterprise with multiple…

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Google Cloud Network Architecture

  • Architecture
  • 7 mins

Google Cloud network architecture forms the foundation of every secure, scalable, and high-performance cloud environment. Although teams often focus first on compute sizing or storage choices,…

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Azure Bicep for Infrastructure as Code

  • Cloud
  • 10 mins

Uncover the ease and elegance of managing cloud infrastructures with Microsoft's Azure Bicep, a fresh face in the Infrastructure as Code (IaC) domain. Explore its clean, readable syntax, seamless transition from ARM templates, and how it simplifies your cloud journey in our latest blog post on CloudTales.

Read MoreAzure Bicep for Infrastructure as Code

I Asked the Domain Controller for a Ticket. It Handed Me a Service Account Password.

  • Platforms
  • 11 mins

I did not break into anything. I did not exploit a bug. I logged in as the most powerless user in the domain — no admin…

Read MoreI Asked the Domain Controller for a Ticket. It Handed Me a Service Account Password.

I Watched One Stolen Hash Walk Into a Second Machine. Then LAPS Shut the Door.

  • Platforms
  • 15 mins

Everyone knows pass-the-hash is dangerous. Almost nobody has watched it happen on their own network. There is a wide gap between two things. One is reading…

Read MoreI Watched One Stolen Hash Walk Into a Second Machine. Then LAPS Shut the Door.

Fail-Closed VPN Gateway on Linux: A Design Deep Dive

  • Platforms
  • 11 mins

A fail-closed VPN gateway routes selected devices through a VPN tunnel and guarantees one thing above all else. If the tunnel drops, those devices lose internet…

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Azure Budgets Don’t Stop Anything — The Enforcement Gap and How to Close It

  • Platforms
  • 10 mins

Most teams treat an Azure budget as a brake. They pick a number, assume the platform will slow spending down once costs reach it, and move…

Read MoreAzure Budgets Don’t Stop Anything — The Enforcement Gap and How to Close It

Azure Cache for Redis Retirement: The Real Cost of Migrating to Azure Managed Redis

  • Architecture
  • 12 mins

The Azure Cache for Redis retirement is not a SKU cleanup and it is not a rename. It is a forced platform transition to Azure Managed…

Read MoreAzure Cache for Redis Retirement: The Real Cost of Migrating to Azure Managed Redis

Azure Private DNS Zones at Scale for Private Endpoint Architectures

  • Architecture
  • 18 mins

Most Azure Private DNS strategies don’t survive contact with Private Endpoints at scale. The pattern looks clean in a proof of concept. Create a privatelink zone,…

Read MoreAzure Private DNS Zones at Scale for Private Endpoint Architectures

Best Linux Distributions in 2026

  • Platforms
  • 16 mins

The best Linux distributions in 2026 do not compete for the same role. Some aim to remove friction for beginners. Others give experienced users tighter control,…

Read MoreBest Linux Distributions in 2026
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Architecture Highlights

Azure Private DNS Zones architecture decisions framework showing resolution path and five key design choices
Azure Private DNS Zones at Scale for Private Endpoint Architectures
Isometric network architecture illustration, Azure palette on dark navy
Azure Cache for Redis Retirement: The Real Cost of Migrating to Azure Managed Redis
Google Cloud Network Architecture
Microsoft Ignite 2025
Welcome to CloudTales

CloudTales is a cloud architecture blog by Vassilis Dionisopoulos, focused on infrastructure design, Microsoft Entra, Azure, Windows Server, Linux fundamentals, and real-world technology decisions.

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