Crosspost: Impressions of Speaking at the FlixTech Summit

Posted over at my current company's blog (current company for two more weeks): Impressions of speaking at the FlixTech Summit. In this post I talk about how I prepared for my first-ever tech conference talk, and how it all felt.

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VirtualBox and CentOS - a technical success story

Most of my readers are probably firmly in the Microsoft Windows world when it comes to using a computer. What is Microsoft (MS) Windows (in any one of its many incarnations, whose most common and recent members are Windows XP, Windows Vista and Windows 7)? It's the operating system (OS) of the computer - for most people computers aren't very usable without an operating system. The operating system sits on top of the hardware and provides the complete logic for everything you see when running a computer - it connects to and registers various hardware devices while booting, like graphics card, sound card, mouse and monitor, and provides functions like user management, a graphical user interface (GUI), process management, and much more. The operating system does not include things like web browsers, mail programs or office suite programs (yes, there are alternatives to MS Office, see OpenOffice ). There are many other operating systems, some with restricted niche usage ( RISC ...

Don't Be a Fafner Developer! I'm going to talk about a type of developer you should not want to be - a Fafner developer. What do I mean with this expression? First, I need to digress. Fafner is a character in Wagner's massive 4-opera "Ring of the Nibelungs" cycle. He and his brother build the gods' castle Valhalla. In payment they receive a vast treasure (the Rhinegold), which includes a magic helmet (the Tarnhelm) and a ring of power (the basic idea should be clear to you if you've ever read the Lord of the Rings). Fafner kills his brother, takes the treasure off to the woods, uses the Tarnhelm to turn himself into a dragon, and settles down on top of his hoard. Much time passes. Finally a hero emerges who is brave enough to take on Fafner (Siegfried). The evil dwarf Mime tries to warn Fafner of the approaching danger. Fafner's response? "Ich lieg und besitz…lass mich schlafen" (I lie here and possess…let me sleep). Of course we know what h...

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