Hackvalue - Tales from the trenches of specialized web hosting and development

Hackvalue is the corporate blog of Loco, a company that does lots of interesting stuff gravitating around Free and Open Source software and licensing, web development, and anything else that we find interesting.

In this particular part of the blog all content is English, but if you have no problems reading Dutch, then the Dutch part of this blog might also be interesting for you. It caters to a slightly different crowd.
If you're wondering why we use the name Hackvalue, please read the FAQ.

Ensuring Evolution survives a distro upgrade

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Armijn Hemel, June 24, 2009, 5843 views.

One of the most vital components of the modern desktop is a mail program. A popular mail program on Linux desktops is Evolution. If you upgrade your distribution you want to take special care to ensure that no data is lost.

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Quick and dirty MySQL optimizations

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Armijn Hemel, June 18, 2009, 5298 views.

Deleted data in a MySQL database often keeps occupying some space (depending on the storage engine), until the database is optimized. With a simple quick and dirty solution you can let cron do this for you.

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Fighting form spam with a little JavaScript

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Joor Loohuis, June 12, 2009, 9145 views.

Form spam is one of the many forms of abuse your website may fall victim to. Preventing automated form submissions is often done with captchas, but there are effective ways of preventing garbage in your websites and your databases, using nothing but a little JavaScript.

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Running top for beer and profit

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Armijn Hemel, June 9, 2009, 5041 views.

Sometimes a small tweak in your system or your thought process can save you heaps and heaps of time, which you can spend otherwise, for more useful things.

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Potentially problematic feedback between greylisting and spam filtering

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Joor Loohuis, June 3, 2009, 5963 views.

Greylisting may affect the spam score of the message when it eventually is accepted by the mail server, which may have unexpected consequences.

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