Category Archives: Howto’s

How to do stuff!

Using external Certificate Authority certificates in a restricted or closed environment

In this example, we’ll be using a wildcard certificate from Let’s Encrypt, obtained through their recently released wildcard certificate offering. What we’re doing The use case is that we want, for one reason or another, to use this certificate in an environment that does not have unrestricted internet access, such as a health institution or […]

Shrinking a Windows 10 installation for small harddrives

Cheap Windows 10 capable devices often come with very limited internal storage space. To make use of this, it is of course crucial that Windows itself takes up as little space as possible. To combat the bloat, there’s a little known feature in compact.exe, the built-in disk compression tool, that compresses the operating system itself, […]

Figuring out which session is blocking a query on Microsoft SQL Server (query suspended)

I was recently debugging a case where a customer’s installation was hanging due to a database lock. The issue turned out to be that the database was not set to a default transaction level of READ COMMITTED SNAPSHOT, which the product expects. Regardless, while troubleshooting the issue, I stumbled upon a very useful SQL query […]

Finding duplicate files with Bash

Someone recently asked, in #bash on Freenode, how to find duplicate files with Bash. Several options were suggested, and the user ended up installing and running “fdupes“. However, this sort of thing should be reasonably easy to do using “find” and a few pipes. As a quick overview, what you want to achieve is to […]

Installing Windows XP on the Fujitsu Siemens Esprimo u9200 in 2017

I recently picked up a brand new vintage 2009 business targeted netbook, sealed in box – the Fujitsu Siemens Esprimo u9200 (fact sheet) (review => archive). At just short of 2KG (4.37 pounds) it’s rather bulky compared to today’s netbooks, but as a rather disposable piece of equipment for travel, which I’d be perfectly fine […]