Author: IT Expert

Christian, Microsoft MVP, Veeam Vanguard & Legend (2021–2026), VMware vExpert, and Cisco Champion, shares expert guides, how-to tutorials, troubleshooting insights, and technical tips across Windows, Linux, Mac, databases, cloud, networking, hardware, and information security.

Unable to connect to MSSQL Server after changing Server name

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Unable to connect to MSSQL Server after changing Server name

Microsoft SQL Server is a relational database management system developed by Microsoft. The primary function of storing and retrieving data as requested by other software applications. In this article, we shall discuss how to fix ‘Unable to connect to MSSQL Server after changing Server name”. See this article for the differences between various Editions of MsSQL…

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Oracle/MSSQL/MySQL

File System Overview: How to decide on the right File System to use for your USB

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File System Overview: How to decide on the right File System to use for your USB

When you get a new USB drive and are about to format it before its first use, you may be wondering which of the available file systems is the best. Here are some of the most important considerations before choosing a filesystem for a USB drive. Here are some related contents on mac Os, how to…

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Linux, Mac, Windows

How to convert a GPT disk into an MBR disk error: Windows cannot be installed on drive 0 Partition 1

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How to convert a GPT disk into an MBR disk error: Windows cannot be installed on drive 0 Partition 1

Had to convert the GPT disk to MBR when I was unable to install Windows OS on the Disk Partitions available. Master Boot Record (MBR) disks use the standard BIOS partition table. GUID Partition Table (GPT) disks use Unified Extensible Firmware Interface (UEFI). One advantage of GPT disks is that you can have more than…

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Windows

Remove unwanted site redirects or pop-ups from Google Chrome

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Remove unwanted site redirects or pop-ups from Google Chrome

Mac OS is vulnerable to potentially unwanted programs or Adware, and browser hijackers. These types of programs or toolbars generate web traffic and collect sales leads for other dubious sites. In this article, you shall learn how to remove unwanted site redirects or pop-ups from Google Chrome on Mac and Windows. Please see how to…

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Mac

Understanding the different types of Proxy Servers

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Understanding the different types of Proxy Servers

Proxy servers are typically simple servers (a computer system or an application) that acts as an intermediary for requests from clients seeking resources from other servers. Here are some guides on How to copy HA-Proxy Configuration file from one Node to another on Proxmox VE and How to Setup forwarding on an HA Proxy. Nevertheless,…

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Web Server

Active Directory Administrative Tools shortcut

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Active Directory Administrative Tools shortcut

Windows administrative tools are built-in and downloadable features for advanced users and system administrators to monitor and configure individual and network devices. Windows Administrative Tools are available for systems administrators wanting more insight into device settings, or to configure policies for a given device. Kindly refer to these related guides: How to enable automatic logon on Windows…

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Windows Server

LDAP: What is Lightweight Directory Access Protocol

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LDAP: What is Lightweight Directory Access Protocol

LDAP is a network protocol used to perform queries and changes in a distributed directory service. The protocol from the TCP / IP protocol stack is specified in the RFCs 4510, 4511, and 4532. LDAP itself is not a directory, but a protocol with which one can retrieve information from an LDAP directory. LDAP requires…

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Windows

Why is Data recovery is almost impossible from an overwritten Hard Drive

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Why is Data recovery is almost impossible from an overwritten Hard Drive

Presently, Data loss is inevitable and happens almost all the time. With the Data Recovery Marketplace, data recovery is possible. Not all data recovery solutions out there is possible of recovery lost data, by careful selection and reviews, you should be able to select a suitable product. Note: Recovery of any lost data is only…

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Windows

Logon Failure Reasons for Windows Event Viewer

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Logon Failure Reasons for Windows Event Viewer

In the context of the Windows Event Viewer, “Failure Reasons” refers to the reasons provided for events categorized as failures. The Event Viewer is a tool in Microsoft Windows that allows you to view detailed information about system events, including errors, warnings, and informational events. In this article, we shall discuss “Logon Failure Reasons for…

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Windows Server

Handy Shutdown commands available in Windows

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Handy Shutdown commands available in Windows

There are times you (System Administrator) may want to reboot your PC due to undesired behavior on your PC. During and after the installation of new programs (software and hardware), most times, you may need to restart your device. This will shut off all processes so that the Kernal can be re-established with the new…

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Windows

How to Fix Err Connection Timed Out DNS Error

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How to Fix Err Connection Timed Out DNS Error

In this article, we shall discuss ‘How to Fix Err Connection Timed Out DNS Error”. To get around this problem, DNS information is shared among many servers. But information for sites visited recently is also cached locally on client computers. Chances are that you use google.com several times a day. Please see Domain Name System…

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Windows

How does IP Address or Domain blacklist work?

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How does IP Address or Domain blacklist work?

A blacklist is a list of IP addresses or domains that are known sources of spam. Often referred to as DNSBLs (Domain Name System Blacklists). The technology is built on top of DNS. Most MTAs can be configured to reject or flag messages that have been sent from a blacklisted IP. In this article, you…

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Network | Monitoring