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Author: Thorsteinn Halldorsson

Senior Cloud Engineer with 25+ years of hands-on experience across the datacenter-to-cloud stack: fiber SAN and disk storage, IBM/Lenovo blade and Dell/HP/Lenovo servers, Hyper-V and VMware clusters, and SQL and Remote Desktop Services (RDS) clusters. Deep in the Microsoft platform — Active Directory, PKI/certificate services, SQL, Power BI, Dynamics 365 Business Central (NAV) and AX (Axapta), Microsoft 365, Entra, and Intune — with a focus on Azure operations, FinOps, and applying AI tools like GitHub Copilot and Claude in real workflows. Writes practical, no-nonsense guides for IT professionals who need to ship real solutions.

Azure

Tenant Carve-Out vs. Consolidation: When to Move a Business Unit OUT Instead of Merging Everything In

Divesting a business unit? When to carve it OUT of a Microsoft 365 tenant rather than consolidate in—TSA deadlines, hidden costs, and a carve-out playbook.

Thorsteinn Halldorsson · June 19, 2026 · 6 min read Intermediate
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Azure

Microsoft 365 Tenant-to-Tenant Migration in 2026: The Native Migration Orchestrator Changes the Game

Microsoft 365 tenant-to-tenant migration in 2026: how the native Migration Orchestrator reshapes mailbox, OneDrive, and identity cutover planning.

Thorsteinn Halldorsson · June 19, 2026 · 5 min read Intermediate
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Azure

Microsoft Entra Tenant Security Hardening: The 2026 Checklist

A 2026 checklist to harden Microsoft Entra tenants—Conditional Access, privileged roles, MFA, and the identity defaults every admin should lock down.

Thorsteinn Halldorsson · June 19, 2026 · 5 min read Intermediate
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Security

Microsoft Defender XDR in 2026: The Unified Portal, Sentinel Convergence, and the Agentic SOC

Microsoft Defender XDR in 2026: the unified SecOps portal, Sentinel convergence, and what the agentic SOC means for day-to-day incident response.

Thorsteinn Halldorsson · June 19, 2026 · 6 min read Intermediate
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Microsoft 365

SharePoint Online in 2026: Authoritative Sites, AI Workflows, and DocGen

SharePoint Online in 2026: authoritative sites, AI-driven workflows, and DocGen—what's changing for content, governance, and the admins who run it.

Thorsteinn Halldorsson · June 19, 2026 · 4 min read Intermediate
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Microsoft 365

What’s New in Microsoft Teams (2026): Async Uploads, Redesigned Toolbars, and Security Reporting

What's new in Microsoft Teams for 2026: async uploads, redesigned toolbars, and built-in security reporting—a practical roundup for IT pros.

Thorsteinn Halldorsson · June 19, 2026 · 4 min read Intermediate
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Microsoft 365

Microsoft Purview in 2026: DSPM, DLP for Copilot, and Auto-Labeling for AI Content

Microsoft Purview in 2026: DSPM, DLP for Copilot, and auto-labeling for AI content—how to govern and protect data across Microsoft 365.

Thorsteinn Halldorsson · June 19, 2026 · 5 min read Intermediate
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Microsoft 365

What’s New in Microsoft 365 Copilot: The Mid-2026 Roundup for IT Pros

Microsoft 365 Copilot mid-2026 roundup: the newest agents, security, and admin controls IT pros need to know, plus what each change means in practice.

Thorsteinn Halldorsson · June 19, 2026 · 5 min read Intermediate
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Automation

PowerShell 7 vs Windows PowerShell 5.1: What You Need to Know

PowerShell 7 vs Windows PowerShell 5.1: the real differences in compatibility, performance, and modules—and how to decide which to run where.

Thorsteinn Halldorsson · June 17, 2026 · 12 min read Intermediate
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Kubernetes

Kubernetes Ingress Controllers Compared: nginx vs Traefik vs Azure Application Gateway

nginx vs Traefik vs Azure Application Gateway: a hands-on 2026 comparison of Kubernetes ingress controllers on features, performance, and TLS.

Thorsteinn Halldorsson · June 17, 2026 · 16 min read Intermediate
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