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A lot of people use the root account to do anything they need, just because it is easier… This is a really bad idea, as that user can do anything to the system.

VirtualBox is a very practical application running under Linux systems, and packaged into Ubuntu 8.04 Hardy Heron, that lets you virtualise an operating system. A bit in the same way as QEmu did it, except that, to make it short, it works better. Anyway, VirtualBox is highly dependent on the kernel of the base system you're running it on, so it is linked to the kernel packages in Ubuntu. The only problem is that, when upgrading your kernel with the usual Ubuntu package updates, you don't get an update for the VirtualBox right away.

Terminology

Term	Definition
Module	Typically, the CVS name for the development project directory
Checkout	The action of downloading a module the first time
Commit	The action of submitting a change in one or more files to CVS
Diff	A list of differences between two versions of a file or a set of files
Vendor Tag	Indicates the supplier of this module - used for branches naming
Release Tag	Indicates

If one use the thread-sorting of e-mails, he may fall into the problem that Ximian/Novell Evolution does follow the In-Reply-To: header to understand that two mails are of the same thread. Microsoft Outlook has a different way to do it [1], and it breaks Evolution's sorting.

Samba is an Open Source/Free Software suite that provides seamless file and print services to CiFS [1] clients. It can completely replace whatever CiFS server, as well as authentication services.

We just realised that through an unfortunate series of events, I had removed a line that Arnaud had added in the documentation on the videoconference installation process. It was missing the part where you download the dokeos-conference.war file and copy it to your webapps directory.

Replicator [1] is a set of Perl scripts meants to automate the replication of Debian GNU/Linux installations, ranging from Debian GNU/Linux Desktops to Cluster Computing servers. It allows to install easily and in a few minutes the same software on various machines with potentially different hardware.

CUPS is a free implementation of the answer of the whole computing industry to the never-ending printing problem, the Internet Printing Protocol (IPP). "There is currently no universal standard for printing. Several protocols are in use, but each has limited applicability and none can be considered the prevalent one. This means that printer vendors have to implement and support a number of different protocols and protocol variants.

I've had to review the SCORM content migration from 1.6 to 1.8 just today, and really, this is not something I'm enjoying.

This article is incomplete and was first written in June 2006
for the BeezNest technical website (http://glasnost.beeznest.org/articles/340).

It could happen that you badly need to use a newer kernel module than what is present on your existing Linux kernel (2.6.x), but you do not want to upgrade the whole kernel or rebuild it from scratch, because:

• you cannot or don't want to reboot afterwards
• you don't have the original source anymore (and your kernel was patched) or you don't want to download and install them, but you do have the kernel headers handy
• o