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Hi, I'm Iljitsch van Beijnum, network architect and writer. I'm from The Hague. Some of the blog posts here are in Dutch, others are in English. Also see

BGP training course Halloween edition!

My next BGP training course will be an extra scary Halloween edition on October 31st, 2016. So come for the BGP, and stay for the scary stories. And the candy, of course.

A Halloween costume, or at least some vampire fangs or something, are recommended but not required.

As usual, the venue is the NL-ix offices in The Hague. The course will be in English. Unless everyone who signs up speaks Dutch, then we'll do it in Dutch. In the morning I'll cover the theory and in the afternoon you will be configuring BGP yourself!

Questions about the training course? Send me an email.

No questions? Then sign up over at the NL-ix website.

Permalink - posted 2016-10-02

In an iPhone 7 "space is at a premium" but the iPod shuffle has room for the headphone jack

At the introduction of the iPhone 7, Phil Schiller explained the removal of the 3.5 mm headphone jack as follows:

❝Maintaining an ancient, single-purpose, analog connector doesn't make sense because that space is at a premium.❞

This makes sense at first blush, but then how is it that until a week ago, all iPhones and iPods had a 3.5 mm headphone jack. Every single one of those except for the iPhone 6s and 6s+ is smaller than the iPhone 7. The iPod nano has only 9% of the volume of the iPhone 7+:

But somehow, Apple found room in there for the 3.5 mm jack. Even if there were no room for the jack in the iPhone 7, they could have made the device a few percent bigger to make room. Or at least keep it on the much bigger iPhone 7+.

The simple truth is that Apple solved their problem by making it our problem. Just carry the extra adapter. Or two different headphones, one for the the iPhone and one for everything else (including your Mac). Or use bluetooth and hope you don't run out of power unexpectedly.

Permalink - posted 2016-09-11

Watertoren Pompstationweg

Watertoren Pompstationweg

Image link - posted 2016-09-02

Internationaal Vuurwerkfestival Scheveningen 2016

Internationaal Vuurwerkfestival Scheveningen 2016

Image link - posted 2016-08-15

Server down

If you tried to visit one of my websites yesterday or earlier today (5 and 6 august 2016), like, or, the site didn't load. That was because my hosting company was doing maintenance so the server had to be shut down. The maintenance took a lot longer than expected, hence the significant downtime.

If you tried to send me mail on friday and you got an error, please try sending it again.

My apologies for the inconvenience.

Permalink - posted 2016-08-06

Haagse Royal Skate Night

Haagse Royal Skate Night

Image link - posted 2016-07-15

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