Microsoft – Changing SID of cloned VMs

On the machine level, every computer is identified by a unique value; named Security ID or SID. SID is calculated in the process of the installation of every Windows machine. Whether the computer is part of the workgroup (or it’s just a stand-alone computer), the value of SID is not crucial. Read More …

WSUS – Upgrading to Windows 10 1903

Microsoft finally released its latest Windows 10 build 1903, now called May Update, last week, much delayed from its initial scheduled release in March after suffering a number of upgrade issues. Let’s see how to enable an internal WSUS server to download and deliver this new update to all corporate Windows clients. Read More …

Powershell – Variable for Null, Empty String and White Space

More often than not, we create variables with the intent they will hold a value. We typically then choose to act upon that value. Therefore, if a variable doesn’t have value, this is something we would want to check against in our conditional logic flow. 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 …

Check DFS Namespaces (DFS-N) Configuration with dfsdiag.exe

DFS-N, as the name implies, is a distributed file system and it involves a number of components running on a set of computers (Active Directory domain controllers, DFS-N namespace servers, SMB file servers, DFS-N clients that are typically Windows clients, but also Linux ones). Read More …

VMware – OVF ha un manifest file non valido

Spesso, in ambienti VMware complessi si adopera molto la funzionalità di estrazione delle virtual machines in formato OVF/OVA, per poter trasferire tali VM su altri cluster VMware o semplicemente adoperarli come template su altri sistemi di virtualizzazione. Read More …

Enable EPEL Repository (RHEL/CentOS 7.x/6.x/5.x)

EPEL (Extra Packages for Enterprise Linux) is open source and free community based repository project from Fedora team which provides 100% high quality add-on software packages for Linux distribution including RHEL (Red Hat Enterprise Linux), CentOS, and Scientific Linux. 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 …

Excel – Allow Certain Users to Edit Cells Range

Excel offers you an ability to assign user-level permissions to different areas on a protected spreadsheet. You can specify which users (usually local or Active Directory ones) can edit a particular range while the spreadsheet is protected. Read More …

Microsoft – Change the Computer Name (Command Line)

Sometimes we could have the need to rename a Windows system not from the usual GUI, but using command line (cmd.exe). Actually, this can be achieved by using the wmic command to rename a windows computer from command line. Read More …