Remove permanent redirect (HTTP 301) cache in Firefox

As a web developer configuring SSL certificates on websites you deliver, as we do, you might be faced, one day, with a small issue about configuring a 301 redirect from HTTP to HTTPS that has to be reverted. It so…

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Raspberry Pi 3 Model B picture
Chamilo 1.11 on Raspberry Pi 3 for off-the-grid situations

This article can be considered an update of our first article on installing Chamilo (on a Raspberry Pi B+). This time, we are testing it with Raspberry 3, as of the 1st of April 2017 (no joke intended). Last time,…

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How to properly rename a projet in Redmine

Redmine is a project management system and a support ticket management system. See other articles on this blog and my video on YouTube about a previous version of Redmine for more info. At some point (and this only happened to…

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Odoo apps licensing

If you ever want to implement projects with Odoo and, like us, you are a bit itchy about non-free-software licenses and alternative BSD or LGPL-like licenses, you might want to know this. Odoo itself was previously (as OpenERP) AGPL, but…

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Change SVG icons to grayscale with Inkscape

If you design your icons in SVG with Inkscape and wonder how to quickly make an “inactive” icon in grayscale, here’s a quick fix (at least for Linux users): inkscape -f teacher_na.svg –verb EditSelectAll –verb org.inkscape.color.desaturate.noprefs –verb FileSave –verb FileQuit…

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BeezNest announces the release of Chamilo LMS 1.9.10

BeezNest announces the immediate release of the e-learning system Chamilo LMS v1.9.10 Open Source and Free Software solutions provider BeezNest, lead editor of the Open Source Chamilo LMS (Learning Management System), just announced the publication of version 1.9.10, the product…

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The complete guide to screencasting in Ubuntu 14.04 + Gnome Shell

For those developers of you wanting to do more than just develop under Linux, you’ll have realized that there are many things stopping you for doing proper video tutorials as easily as you would do it with some non-free (as…

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MySQL and MariaDB innodb_file_per_table

For those of you pushing your MySQL instances to higher levels, you’ll have realized at some point that all InnoDB tables share their indexing space into a single file (ibdata1, usually). This has several very bad outcomes: the ibdata1 file…

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Using Chamilo juju charm to setup a dev environment on Digital Ocean

If you’re in a hurry/on speed, know this: this procedure is slightly more difficult (so longer) than installing the charm on Amazon you can skip directly to “Installing Juju” if you already have juju installed, you can skip to the…

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Embedding webcam with SimpleScreenRecorder

In case, like me, you use SimpleScreenRecorder on Ubuntu to do screencasts, you might be missing something: the ability to embed your webcam’s feed *inside* the screencast (like this little capture on the right side which shows how amazed I…

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