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🔧 Overview By default, Exchange Server uses a self-signed certificate for OWA (Outlook Web App) and ECP (Exchange Control Panel). However, this cert is not trusted by clients, leading to …
If you’re setting up Windows 11 in a virtual machine (VM) — especially in Hyper-V — you might hit a roadblock: Windows 11 forces a network connection during Out-Of-Box Experience …
Introduction In many Active Directory environments, any authenticated domain user can join up to 10 computers to the domain by default. While this might be convenient, it poses a security …
Introduction As a system administrator and IT enthusiast, I often experiment with various operating systems in virtual environments like Hyper-V. When Windows 11 was released, I was eager to test …
After I enabled and tested MFA for Windows logon, I noticed something odd — users who had already enrolled for MFA were not being prompted for MFA when logging into …
When deploying ADSelfService Plus in an enterprise environment, one of the first things I wanted to do was replace the default self-signed SSL certificate with a certificate issued by our …
Introduction In this post, I will walk you through how I configured and tested Multi-Factor Authentication (MFA) using ManageEngine ADSelfService Plus for both Windows endpoints and Exchange OWA. I set …
When managing Exchange Server, the Exchange Management Shell (EMS) is one of the most powerful tools at my disposal. But with great power comes great responsibility—especially when it comes to …
Introduction In this post, I will demonstrate how an email can be sent using Telnet — often mimicking spam or spoofed emails — and how to analyze the message headers …
Sometimes I need to upgrade or downgrade a virtual machine in Azure — maybe to get more CPU, RAM, or premium disk support. Instead of rebuilding from scratch, I just …