Archive

I’ve just uploaded the new slides for my Public Key Cryptography 101 presentation. It consists of 84 (!) slides about the basics of encryption, public key cryptography and implementations. How does it …

I sometimes hear: “make everything utf-8 in your database, and all will be fine”. This so-called advice could not be further from the truth. Indeed, it will take care of internationalization and …

Today I’ve passed the Zend Framework Certification exam and with that I can finally close my new years resolution for 2010: doing 12 (tech related) exams in 2010. So I’ve seen a lot of exams, good …

I occasionally get into discussions where I find that other lack some basic understanding of the elementary systems which he or she has to work with everyday. Today was such a day: we went into a …

Most developers who are working at the command line on a Linux system know the “basic” commands: ls, cd, cat, tail, head, sort, grep, find and others. More “advanced” users will know how to deal with …

At almost every software company I’ve been involved in, used custom-made tools for various tasks. These tools range from simple shell-scripts for search&replacing data to large deployment-script or …

During this blog post I will talk about creating your own custom package repository. However, before you can setup a repository, you need packages. This previous post talks about setting up your …

Today I have pushed the v1.6 release of the Joind.in Android app to the market. A lot of things has changed, so it probably would have been more suited to rename it to v2.0. Here is a list of changes, …

A friend of mine posted a tweet about problems with Zend Guard just the other day. My friendly advise was: try using another encoder. Which he kindly ignored :) Which on my turn again made me wonder: …

Today i was reading upon this wonderful article about writing a trace-route program in Python in 40 lines. Even though trace-route is one of the many tools i use on day to day basis, i never really …