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Category: Windows Server

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Active Directory Health Check with PowerShell – Full Forest Report & Interactive HTML Dashboard
Active DirectoryIdentity & Access ManagementMicrosoftPowerShellWindows Server

Active Directory Health Check with PowerShell – Full Forest Report & Interactive HTML Dashboard

by antoniorennvickMay 5, 2026May 7, 2026

Active Directory Health Check with PowerShell + HTML Dashboard Run a complete Active Directory health check using PowerShell and automatically generate a clean, readable HTML dashboard. This guide shows you how to assess domain health,…

Generating GPO Change Audit Reports Using PowerShell (Part 2)
Active DirectoryAutomationMicrosoftPowerShellSecurity & AuditingWindows ServerWindows Server

Generating GPO Change Audit Reports Using PowerShell (Part 2)

by antoniorennvickMay 4, 2026May 7, 2026

In Part 1, we automated Group Policy Object (GPO) backups using PowerShell and Task Scheduler. Backups alone are valuable—but their real power comes from visibility. Auditors don’t ask if you back up GPOs.They ask: “Show…

Automating Group Policy Object Backups with PowerShell and Task Scheduler (Part 1)
Active DirectoryMicrosoftPowerShellWindows Server

Automating Group Policy Object Backups with PowerShell and Task Scheduler (Part 1)

by antoniorennvickMay 4, 2026May 6, 2026

Group Policy Objects (GPOs) are a core component of Active Directory environments. They control security settings, user configurations, software deployment, and many other critical aspects of Windows infrastructure. Despite their importance, GPOs are often overlooked…

Building a Secure Self‑Service Admin Account Unlock Tool for Active Directory – Part 1
Active DirectoryIdentity & Access ManagementIdentity SecurityMicrosoftWindows Server

Building a Secure Self‑Service Admin Account Unlock Tool for Active Directory – Part 1

by antoniorennvickApril 28, 2026May 6, 2026

1. The Problem In many enterprise Active Directory environments, administrators use two accounts: A standard user account for daily workstation use A privileged admin account for RDP and administrative tasks Because admin accounts are used…

CybersecurityEmail AuthenticationEmail SecurityMicrosoft ExchangePhishing Protection

Understanding SPF, DKIM, and DMARC: A Comprehensive Guide to Email Authentication

by antoniorennvickMarch 6, 2025

 Email authentication is a crucial aspect of cybersecurity that helps protect organizations from phishing, spoofing, and email fraud. Three key protocols—SPF, DKIM, and DMARC—work together to ensure email security and authenticity. This guide will provide…

How to sync your Active Directory (AD) time with a reliable time source
NTP ServerWindows Server

How to sync your Active Directory (AD) time with a reliable time source

by antoniorennvickMarch 6, 2025

1. Choose a Reliable Time SourceYou can use NTP (Network Time Protocol) servers from a reliable provider such as:Microsoft NTP servers: time.windows.comNIST (U.S. Government): time.nist.govSingapore NTP servers: sg.pool.ntp.org 2. Configure the PDC Emulator to Sync with…

CybersecurityPKI & CertificatesSecurityWindows Server

How to protect your RDP session with a SSL certificate.

by antoniorennvickSeptember 29, 2021April 27, 2026

When we try to RDP to a server or our PCs we always experience the below error. And when we click on the View certificate we see a self signed certificate. This is not a…

ExchangeMicrosoftTroubleshooting

“A reboot from a previous installation is pending” Exchange installation error

by antoniorennvickMarch 24, 2021

While trying to install or upgrade a CU on Exchange 2013, 2016 and 2019 you might have come across a simple issue as below. Since the error says to reboot the system you simply reboot…

ExchangeMicrosoft

One-Click Exchange Mitigation Tool

by antoniorennvickMarch 16, 2021

After the vulnerability discovered on Microsoft exchange servers CVE-2021-26855 globally there was a huge hit for the organisations and reports shows that more than 30000 organisation has been effected. Initially Microsoft released the securty patch…

CybersecurityPerformanceWIndows 7Windows 8Windows 8.1Windows Server 2008 R2

Windows 8.1 is FAR more than simply a new and/or improved UI Windows 8.1 “under the covers”

by antoniorennvickNovember 29, 2013

Picking out the differences between Windows XP and Windows 8.1 or even between Windows 8 and Windows 8.1, improvements have been enormous and have remained unnoticed by a lot of people. So here's a glimpse…

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