Powershell – Force gpupdate on all Domain Computers

Client computers update Group Policies every 90 minutes by default, in a functional and working domain. In this brief article Read More …

Install the PowerShell Active Directory Module

This guide explains how to install the Active Directory (AD) module for PowerShell Core 6.0 and Windows PowerShell. For Windows PowerShell, the document describes how to install the AD module for Windows 7, Windows 8, Windows 8.1, Windows 10, Windows Server 2008 R2, Windows Server 2012 R2, and Windows Server 2016. Read More …

Distributing Proxy PAC using GPO (Active Directory)

If your organization uses Active Directory and Internet Explorer, Google Chrome, Safari or Firefox, you can use the Active Directory Group Policy Object (GPO) feature to distribute the PAC file URL to all devices in your organization. Read More …

Microsoft Windows – Clear RDP Connections History

In workstations and domains environments, for each successful connection to a remote computer using the RDP (Remote Desktop) client in Windows (mstsc.exe) the system will save remote computer name (or an IP address) and the username used to log on by default. Read More …

Excel – Remove Everything But Duplicate Rows

In Excel, we all know that, there will be a moment in which we need the opposite the people usually need on usual Excel worksheets: this is the case of searching and filtering, from a dataset, only duplicates values, removing the unique ones. Read More …

Microsoft Active Directory Cached Credentials

On Microsoft Active Directory environments, Cached credentials allow a user to access machine resources when a domain controller is unavailable. After a successful domain logon, a form of the logon information is cached. Later, a user can log on to the computer by using the domain account, even if the domain controller that authenticated the user is unavailable. Because the user has already been authenticated, Read More …

Windows Server 2016 – Disk and Share quorum members (Failover Clustering)

Let’s begin by saying and focus that computer clusters (Windows-based) require 3 or more voting member systems to be stable. A failover cluster is a group of independent servers which work collaboratively to ensure high availability and scalability for workloads such as File Server, Exchange, SQL, and Virtual Machines. Read More …

Windows Server 2016 – Create and Enable Clustered Shared Volumes (CSV)

CSV (Cluster Shared Volumes) is a feature in Windows Server family in which shared disks are concurrently accessible to all nodes within a failover cluster. The feature was first introduced in Windows Server 2008 R2 as a way to simplify storage with clustered Hyper-V virtual machines (VMs), but this is not limited to Hyper-V applications. Read More …

Microsoft SQL Server – TCP Port vs TCP Dynamic Ports

The default instance of SQL Server will listen on port 1433 (unless you’ve changed it to something else). However, by default, named instances will use a dynamic port, and SQL Server Browser will determine which port has been allocated and direct traffic accordingly. Read More …

Postfix – SMTP E-Mail Relay for Office 365

Postfix is a flexible mail server that is available on most Linux distribution. Though a full featured mail server, Postfix can also be used as a simple relay host to another mail server, or smart host. This tutorial will describe how to configure Postfix as a relay through Office 365 service, so using Exchange Online. Read More …