Create a bootable Windows 10 installation USB on macOS

It’s fairly easy to create bootable USB installation media for Windows 10 when using Microsoft’s Media creation tool. Unfortunately this tool is not available for macOS. This post explains you how to do this without using a Windos-based PC or VM and without using BootCamp assistant. This can come in handy when trying to install Windows on your mac or when there is simply only an Apple Mac available and you need to boot the Windows installer for various reasons.

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Install Windows 10 on a MacBook (Air) 2019/2020 with T2 chip

For quite a long time now, Apple supports running Windows on your x86-based MacBook. The supported method is to use BootCamp Assistant. Although this does work in a lot of cases, there might be reasons to manually install Windows on your MacBook. For example if you want to get completely rid of macOS. Other reasons could be dropped support for older MacBooks, the ability to use a custom/modified Windows installation or if you want to install on an external drive. This post explains how to install Windows on a 2019/2020 MacBook (Air) equiped with a T2 security chip without using BootCamp Assistant.

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BIOS or SPI programming on Windows or Linux using a CH341a MiniProgrammer

Without a working BIOS, even the most powerful hardware can’t be brought to life. In some rare cases, the BIOS chip in your system can become corrupt, which will return your system completely unusable. To fix this situation but also for other reasons like simply a backup, tuning, modding or enabling hidden features, flashing your BIOS ROM is interesting. Recently I got in the situation where the BIOS chip in my Lenovo X1 Yoga got corrupt. To fix this, I purchased the CH341a MiniProgrammer. In this post you can find the documented steps I took to reflash the BIOS and bring my laptop back to life.

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Install and use Zabbix 3.2 on CentOS 7 or RHEL 7

Zabbix is a monitoring tool which is widely used in all kinds of environments. Zabbix is very flexible, information can be retrieved using HTTP/SNMP or by installing a Zabbix agent on the machines to monitor, and allows a lot of customisation. Unfortunately this also means that the learning curve can be rather high. This post will go a little deeper into the installation process and the first steps in Zabbix.

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Move a guest from VMWare ESX to oVirt or RHEV

When working in an environment where you have both a VMWare hypervisor and an oVirt or RHEV hypservisor or you want to migrate away from VMWare ESX to oVirt or RHEV, you will need a way to move or copy your current virtual machines from one to another. Unfortunately this can’t be done without downtime but at least it can be done. In this post I’ll try to explain how to successfully move a VM running on ESX or vCenter to an oVirt or Red Hat Enterprise Virtualization host.

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Terse, unterse and transfer datasets between z/OS and other platforms via FTP

Tersing files can be compared to tarring, zipping, rarring files on the x86 platform. It allows you to store a file or multiple files (members) in an archive. The archive is easily transferable and when the data is unpacked, it is guaranteed to be the same as the original source. Especially when transferring PDS’es and variable blocked (VB, VBS) datasets, this is important. Transferring normal datasets over FTP through other platforms from z/OS can be challenging an this article should provide some help.

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Execute queries on a Microsoft SQL server from the Linux CLI with ODBC and Kerberos authentication

A while ago, the Windows-world and the Linux-world were not the best friends in communicating with each other. Especially not when it came to proprietary stuff like Microsoft SQL server. in contrast to everybody’s expectations, somewhere end 2011, beginning 2012, Microsoft released an ODBC driver for SQL server for Linux. This driver allows executing queries from a Linux machine to a Microsoft SQL Server database. The driver can be used in combination with Kerberos tickets and AD authentication to execute queries.

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Mount Windows (CIFS) shares on Linux with credentials in a secure way

In almost all cases, when mounting a CIFS-share on a Linux host, you will need to supply some credentials. Either you could enter the credentials by hand every time you need the share or add the credentials to /etc/fstab to automatically mount the share. Entering the password manually is secure but not comfortable, leaving the password in /etc/fstab is comfortable but not secure since the file /etc/fstab is world readable.

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Install and use CentOS 7 or RHEL 7 as KVM virtualization host

When thinking about virtualization, everybody immediately thinks about VMWare. And it must be said, the product they offer is very decent but also comes with a “decent” price. As an alternative, it’s worth looking into KVM for your virtualization. As with the VMWare product range, KVM offers full virtualization and it can compete with VMWare regarding stability and performance.

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