Change author of SVN commit

Posted on 2013-06-11 by Gerhard

What can you do when you have for some reason the wrong author in your SVN commit? This is something that should never happen you might think. But what if it happened? Let me tell you, there is a solution. Continue reading →

Posted in Version control system | Tagged , , | Comments Off on Change author of SVN commit

Splitting up an SVN repository

Posted on 2013-05-10 by Gerhard

When I was creating my SVN repository I was lazy and created just one repository for all my projects. This was easy to administrate and to use; only one repository to configure with user names and passwords, only one URL to remember, … How to split it up now? Continue reading →

Posted in Version control system | Tagged , | Comments Off on Splitting up an SVN repository

Change file time on Linux or Mac OS X

Posted on 2013-04-19 by Gerhard

Changing the date of a file under Linux or Mac OS X can be quite a challenge. As far as I know both do not provide a UI (User Interface) option to do this out of the box, but what both operating systems do provide are the tools needed to do it in the console. I wanna show how … Continue reading →

Posted in Linux Administration, MacOSX | Tagged , , | Comments Off on Change file time on Linux or Mac OS X

Why is my Symfony 2 app crashing with an out of memory error?

Posted on 2013-04-11 by Peter

I’ve recently run into an issue where a data-processing task in a Symfony app would crash with a PHP ‘Out of memory’ fatal error. The task in question was using Doctrine to retrieve some rows from the database, updating some … Continue reading →

Posted in PHP | Tagged , | Comments Off on Why is my Symfony 2 app crashing with an out of memory error?

SPF and multiple domain mailserver

Posted on 2013-03-20 by Gerhard

We all hate spam, right? I think you all know the annoying emails, but what is worse than receiving emails? How about when emails you send to someone are for some reason detected as spam? This happened to me recently. … Continue reading →

Posted in DNS, Linux Administration, Mailserver | Tagged , , , , , | 1 Comment

Is MongoDB always faster then MySQL?

Posted on 2013-02-28 by Gerhard

This is another classic question you might have come across, but can this question simply be answered with a YES or NO? Well, I would not write about it if the answer was that easy! Continue reading →

Posted in Database | Tagged , , , , | Comments Off on Is MongoDB always faster then MySQL?

PHP “headers already sent”, but I didn’t do it!

Posted on 2013-01-29 by Gerhard

I get the PHP Error “headers already sent” when calling a PHP script! My scripts appear to be outputting data to the browser before any function to manage the buffer such as ob_flush() or ob_get_contents() is even being called! What is going on!? Continue reading →

Posted in PHP | Tagged , , , | Comments Off on PHP “headers already sent”, but I didn’t do it!

My HTML-form mysteriously stopped working, why?

Posted on 2012-12-29 by Gerhard

Nobody changed it, why is it not working anymore? You can imagine the confusion after checking the version control and the files which where unchanged since the time the website was finished (lets say about 4 years). Continue reading →

Posted in PHP, Web technologies | Tagged , , | Comments Off on My HTML-form mysteriously stopped working, why?

What version of Firefox is this user agent string?

Posted on 2012-10-27 by Gerhard

Is it really a Firefox browser? When I was first shown the user agent string below and asked ‘what version of Firefox is this?’ At first I took this at face value, it’s obviously a Firefox browser, it says “Mozilla” right there, right? Digging a little deeper, it turned out not only was this wrong, but the question was wrong as well! …
Continue reading →

Posted in Web technologies | Tagged , | Comments Off on What version of Firefox is this user agent string?

From what size of data MySQL is not performant any more?

Posted on 2012-10-05 by Gerhard

Is this the right Question? Somebody asked me this question and I told myself to write about that topic. This questions are always lacking of of context, but there might be a correct answer. Usually you don’t reach the performance limit of MySQL very easily. Its the wrong questions you ask…
Continue reading →

Posted in Database | Tagged , , , | Comments Off on From what size of data MySQL is not performant any more?