Jan Reilink

Jan Reilink

Hi there, I'm Jan and this is my blog.

How to unzip a file in PowerShell

PowerShell 5.0 logo

Unzip a file on your PowerShell command-prompt may come in handy sometimes, even on your Windows 11/10 workstation. Use Expand-Archive for this, and all that is required is PowerShell 5.0+, or the .NET 4.5+ Framework to use System.IO.Compression.ZipFile.

Detect ethernet network speed in Windows

PowerShell 5.0 logo

Being able to detect the ethernet network speed using PowerShell or WMI is perfect for Windows Server Core. If you ever need to lookup the speed of your ethernet network card in Windows, on the command-prompt, use one of the following PowerShell / WMIC commands.

MySQL InnoDB performance improvement: InnoDB buffer pool instances – Updated!

High Performance MySQL

Are you running into MySQL load problems? InnoDB Buffer Pool optimization is an important step in tuning MySQL servers for a heavy InnoDB workload. Configuring innodb_buffer_pool_instances and increase read/write I/O threads. Dividing the InnoDB buffer pool into multiple instances can improve Disk I/O. And by doing so, you run your database & server more efficiently and faster. Here is a little help for you.

Generate pseudorandom passwords with OpenSSL

Keys

OpenSSL comes in handy when you need to generate random passwords, for example for system accounts and services. In this short post I'll give you a quick example on how to generate random passwords with OpenSSL in Linux (Bash), Windows and PHP.