27 October 2025
Kerberos FAST (Armoring) : Strengthening Active Directory Authentication
Learn how Kerberos FAST (Armoring) secures Active Directory authentication and how to configure it safely using GPOs.
Category: System administration
10 October 2025
CAExpiryMonitor — Free Active Directory Certificate Expiration Monitor
CAExpiryMonitor helps administrators stay ahead of certificate expirations.
With an intuitive interface, automated service and detailed reports, it keeps your PKI healthy and your Windows infrastructure secure — all for free.
31 August 2025
NTLM Migration to Kerberos
Comprehensive guide to migrate from NTLM to Kerberos in Active Directory. Learn how to audit, analyze dependencies, apply GPOs, and ensure a smooth transition.
28 August 2025
Migrating a Domain Controller
I migrate a DC step by step: preparation (name/IP/DNS), promotion of NEWDC (DNS+GC), FSMO transfers, PDC NTP, SYSVOL migration to DFSR, then decommissioning of OLDDC. We prioritize the GUI and validate each step with repadmin/dcdiag and DNS SRV checks.
26 August 2025
CopyCraft: Free Robocopy GUI
CopyCraft is a free graphical interface for Robocopy. Follow this tutorial to secure your data transfers with logs and NTFS permissions.
22 July 2022
How to copy share information during a file migration.
Often to migrate a file server to another, ROBOCOPY is used, unfortunately this method does not allow the recovery of shares and sharing rights.
The method below will allow you to copy shares and share rights from one server to another for free.
29 April 2022
Windows: The trust relationship between this workstation and the primary domain has failed
When you log in to a computer that is running domain-joined Windows, and you receive the message “Error The trust relationship between this workstation and the primary domain has failed”.
5 November 2021
Office 365 Data Loss Protection – DLP
Data Loss Prevention “DLP” helps organizations comply with industry regulations and protect sensitive information. It also prevents inadvertent disclosure. The sensitive information you need to prevent leaks outside your organization includes financial data, such as credit card numbers, social security numbers, or medical records. With a DLP policy, you can identify, track, and protect sensitive information in Office and Microsoft 365.
17 June 2021
This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, public folder mailboxes or arbitration mailboxes
Cannot delete a database in Exchange 2016
“This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, public folder mailboxes or arbitration mailboxes, audit mailboxes. To get a list of all mailboxes in this database, run the Get-Mailbox -Database
10 May 2021
Server-to-server storage replication with Storage Replica
Storage Replica is a Windows Server technology that enables the replication of volumes between servers or clusters for disaster recovery. It also allows you to create stretch failover clusters that span two sites, with all nodes in sync.