Joshua Thijssen is a freelance consultant, developer and trainer.
His daily work consists of maintaining code bases, working on different projects and helping other to achieve higher standards in both coding and thinking.
Puppet is a configuration management tool which allows easy deployment and configuration ranging from one to a thousand servers (and even more). Even though puppet is a common tool in the devops-world, it is still a strange piece of software for developers. I will tell you on why it will be useful to learn more…
Using MySQL is an art. Most of the time, the bottleneck of a website or application are database performance issues. For instance, did you know about the penalties for UTF-8 fields? Or about what can make or break your query caching? And whatÕs the deal with cardinality and selectivity and why is it important? During…
Just like any other programmer and/or company, you’ve probably made some in-house tools to make your life easier. But is everybody using the latest version? Are all servers that use your software up-to-date with the latests bugfixes? Do you have to write your own deployment scripts for every tool you make? Linux distributions are using…
Did you know you can write a webserver in awk and that sed supports conditional jumps? Probably not… These tools (and languages) are much more powerful than most people know. The sed & awk combination gives you massive power IF used correctly. Although most people use it for simple tasks like search/replacing or displaying certain…
HTTPS, SSL, SSH, PGP are terms most people know that they are somehow related to encryption. But how does it work? During this talk you will find out why even the most complex encryption algorithms used today are based on very simple concepts. We will dive into the basics of public key encryption, how it…
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