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Author: rolfje

Why developers are never on time

Posted on 2012-06-28 By rolfje No Comments on Why developers are never on time

If you have worked in IT as long as I do, you probably have noticed that developers have a tendency to not be on time. They are late for meetings, late for lunch, and on other days they are in at 6am or (and) they work until 3am the next morning. If you ever wondered why this is, I might have some answers for you.

You might also find this post interesting if you are trying to figure out why you can’t get your time zones working in MySQL.

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Software

How to make customers blog about you

Posted on 2012-05-02 By rolfje 2 Comments on How to make customers blog about you

An informative article for webshop owners this time, all about how to make people blog about your company. Everything you need to know about online customers, the power of the internet, and how good old moral values still work and can be leveraged to your advantage. Or not.

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Apple, Hardware

Mortgage Awareness

Posted on 2012-04-01 By rolfje 2 Comments on Mortgage Awareness

This weekend I tinkered around with Apple Keynote. I thought I’d make something useful. In this video I’m trying to show you how much money the bank makes on your mortgage. Banks like you to pay a low monthly fee on your mortgage because it keeps the loan higher for a longer period of time. This way the bank can cash in on the interest rate, and then cash in again at the end of the mortgage contract, when you are still hopelessly in debt.

[youtube=http://www.youtube.com/watch?v=EI6N583mBEw]

“Financial advisors” working for the bank will throw sand in your eyes, saying that keeping your debt high gives you all kinds of tax breaks. But in the end, it’s them who get better of that construction, not you. Don’t fall into this trap. Understand your mortgage contract, learn how the model works, and check your model against the bank’s model (without that financial advisor or the lady at the helpdesk talking to you). You have more room than you think. Use it.

Apple, Uncategorized

Join, don’t judge

Posted on 2012-03-04 By rolfje 3 Comments on Join, don’t judge


Like many people, I like to dine in a good restaurant, where the mood is mellow, the waiter is a fine host, and the cook is passionate about good food and nice presentation. The courses are perfectly timed with your appetite, and each shiny polished plate of food contains the best looking, smelling and tasting food with the nicest textures. After desert, you get the best fresh mineral water coffee, and just sit there, satisfied, happy, in good company. The waiter discretely places the check on the table, and you happily pay whatever that check tells you to pay, and add a big tip for good measure, to show you had a great evening.

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Uncategorized

Distributed jMeter through VPN and SSL

Posted on 2012-02-16 By rolfje 19 Comments on Distributed jMeter through VPN and SSL

This week I created a jMeter test setup for distributed testing. I thought it would be straight forward but I ran into some interesting things you might want to know if you are considering distributed testing using jMeter.

In my case, I had to test an application which was inside our corporate network, while working from home through a VPN and a firewall. Normally that is no problem, but jMeter has this funny construction where the slave (jMeter server) wants to connect back to the master (jMeter gui). It took some fiddling with iptables, the jMeter configuration and ssh tunneling to get it to work. Here’s my setup:

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Software

Drobo FS Lion Time Machine Fix

Posted on 2012-01-07 By rolfje 10 Comments on Drobo FS Lion Time Machine Fix

Many Drobo FS owners out there who upgraded to Lion were unpleasantly surprised by the fact that their Drobo no longer behaved like they used to. After months, drobo released new firmware, but it didn’t improve things all that much. With the new firmware, the Drobo FS:

  • is slow or entirely unresponsive, Time Machine backups don’t finish at all or take days
  • doesn’t show up in the Finder of Lion Macbook owners connecting through wifi
  • has a transfer speed of 20MB/s, even when connecting through GB Ethernet, regardless of OSX version (tested with Snow Leopard, Lion)

If you have one or more of the problems listed above, you will be pleased to hear that there is a “fix”, although it may not be what you were hoping for.

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Hardware

The Pan Rant

Posted on 2011-12-26 By rolfje 1 Comment on The Pan Rant

You may have seen recent tweets from me ranting about my frying pans. I’ve ruined a few (very expensive) pans and replaced them with dirt-cheap pans which are actually much better. I would like to share my experiences and solutions with you, so that you can buy the right (cheap) pan without having to go through the same thing. Links to all the pans are in the article below.

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Hardware

Review: Lamy Pico pen

Posted on 2011-12-23 By rolfje 6 Comments on Review: Lamy Pico pen

A few weeks ago I saw this amazing pen design by Lamy, the Pico. I’m a heavy computer user so I don’t do much handwriting, but I do like nice tools so I thought I’d get this. Particularly the small form factor when retracted and the sleek design attracted me.

There are some things about the Pico that nobody is telling you, so I thought I’d write a little review.

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Hardware

The Useless Machine

Posted on 2011-12-18 By rolfje 4 Comments on The Useless Machine

The past year, you may have seen me tweeting some “#secretproject” tweets. Last week, the project was finally revealed, and here is the video, in case you’ve missed it:

[youtube=http://www.youtube.com/watch?v=7nkebVQL5zc]

This is what is known on the internet as a “Useless Machine” or “Leave-me-alone Box”. In case you want to make one, there are plenty of instructions online. I think you can build a basic version of this in about a weekend, and it will cost you less than ten euros. 

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Fun

Catnip Watering System

Posted on 2011-12-04 By rolfje No Comments on Catnip Watering System

Here’s a one minute how-to on growing catnip without having to water your plants every day.

[youtube=http://www.youtube.com/watch?v=6jyqNzNeQeE]

Fun, Hardware, Workshop

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