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Recent posts on the YTEC blog

Ytec, where I work since July 31 2015, is an IT company specializing in customer-specific custom software ("klantspecifieke maatwerk software"). Somewhere in late 2015, YTEC deployed a fancy new website based on React, which, to my surprise, is actually indexed somewhat decently by Google. Still, I want to be able to find my own posts on the YTEC blog when I filter by “”, which is why I'm listing my posts there here: Read More »

Sending mail from a NATed host with Postfix

When sending mail from a host behind NAT, you will run into trouble when the "From" says "root@host.localdomain", because receiving servers will refuse that domain. Read More »

Download dmcrypt (cryptsetup) encryption key from remote server and auto mount

One of the inconveniences of encryption is the need to open the encrypted volume by hand when the computer/server boots. Luckily, you can easily automate that securely. You need a machine that will act as a key server, whether that's a Raspberry Pi or some VPS you hire. Read More »

Preventing degraded array on every boot

I had a server that booted with a degraded array every time, because there was a USB drive attached to it, that messed up the auto detection. I solved it by putting this in mdadm.conf: Read More »

Master PDF Editor for Linux

While trying to find out the quickest, cleanest way to install PDFedit program in Linux Mint, I stumbled upon Master PDF Editor for Linux, which is basically the same thing, but more advanced and closed source, but free for personal use. Read More »

Metabolism & Nutrition: learning objectives

Lectures Energy metabolism “Explain the Harris-Benedict principle.” Read More »

Tick bite log

About two months ago, I noticed, for the first time ever, the dreaded red circle around one of my first tick marks of this season. The mark was in the vicinity of the hollow of my left knee, and it was left by a tick that I had discovered about two days after it must have lodged there, plenty of time for it to dump its bacterial payload in my bload. This late discovery is fairly typical for me. I've never been very careful with registering tick bites, and over the year, I've discovered many ticks only after accidentally beheading them while thoughtlessly scratching their abdomen away. Read More »

Metabolism & Nutrition – Tutorial 3: Nutrition and epigenetics

The third tutorial for the RuG Metabolism & Nutrition course, was introduced and moderated by Torsten Plösch, who specializes in the epigenetic effects of nutrition during pregnancy. Read More »

Multiplication in BULL

Now, what will follow is the first published note about BigSmoke's Unified Linking Language (BULL), posted here not for you but for me, because my notes are such a terrible mess, covering too many pieces of papers and disjointed files. Read More »

Metabolism & Nutrition – Tutorial 1: Caloric restriction (CR)

For the 2015 Metabolism & Nutrition course at the RuG, I'm asked to read two papers on two parralel studies on increased longevity of rhesus monkeys (Macaca mulatta) through caloric restriction (CR). Colman et al. (2014) report a positive effect of caloric restriction on longevity for the study at the Wisconsin National Primate Research Center (WNPRC), but these effects could not be confirmed by Mattison et al. (2012), with macaques kept at the US National Institute on Aging (NIA). Read More »