I am Rob Wolfram, a Linux sysadmin with a special interest in computer security and cryptography. I've been working in IT since 1993 and as a Unix and Linux sysadmin since 1997. Before that I've been working in law enforcement.
Both my personal and professional work environments are Linux based. The only Windows systems I use are terminal servers at work that I must use for required Windows-only applications. I don't have a personal grudge against Windows or Microsoft (not anymore) but I find it to hinder me in being productive.
Because of my interest in cryptography I am also very interested in the phenomenon of cryptocurrencies, especially Bitcoin, and I have another blog site in Dutch that tries to introduce newbies to what Bitcoin is and how it can be used. I consider myself a Bitcoin maximalist, meaning that I think that no other cryptocurrency will play a significant role in the cryptocurrency environment in the long run. Not even Ethereum.
Some other interests of mine are astronomy and cosmology, (molecular) biology, philosophy, religion (assuming the null hypothesis) and free software. Evidently, quite a broad spectrum. By now I've witnessed three total solar eclipses (Saarbrücken DE 1999, Side TR 2006 and Carbondale US 2017), one of which was behind a thick pack of clouds (Saarbrücken). I now consider myself a Solar Eclipse Chaser and hope to witness three more in the next 10 years, i.e. Chile 2020, U.S.A. 2024 and Southern Spain 2027.