IT professional writing about cybersecurity, cloud & DevOps, automation, networking, and systems administration. Real-world guides for real-world problems.
Part 1 covered architecture; this part is the network plumbing. Three subnets, three named adapters per node, every link ping-tested before any cluster bit gets installed. Skip a ping test,…
Welcome to part 1 of a 13-part deep dive into SQL Server Always On Failover Cluster Instance (FCI). Before any wizard screens, before any PowerShell, you need the architecture in…
SSPR — Self-Service Password Reset — lets users reset their own password from passwordreset.microsoftonline.com without calling the helpdesk. With writeback enabled, the new password flows back to on-premises AD via…
Sometimes you need to stop the sync entirely. Maybe you’re going fully cloud and decommissioning the on-prem servers. Maybe you’re consolidating tenants. Maybe legacy AD is too rotted to fix…
The Entra admin centre is open by default to anyone with a tenant account. Standard users sign in, see the dashboard, browse the user list, view group memberships. They can’t…
You have a synced user in M365. Their on-prem AD account is going away (employee left, contractor finished, account being decommissioned). You want to keep the cloud account — mailbox,…
Single-server Entra Connect is a single point of failure. The server dies, sync stops; password changes can’t flow to the cloud; new users don’t appear in M365. For most environments…
Old EC server is on Server 2016 with Server 2025 due imminent. Different hardware approaching end-of-life. The OS in-place upgrade path Microsoft doesn’t support for the EC role. Whatever the…
