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One of the first things to learn about programming is to check your ego at the door. It's a complicated craft, and even the most hardened pros are regularly amazed by what they don't know. "Programming is one of those things that humans are not quite smart enough to do," warned Slashdot blogger Thangodin.

iRedMail is a shell script that lets you quickly deploy a Open Source Mail Server solution in less than 2 minutes. This tutorial shows how to set up a mail server with Postfix, Dovecot, Amavisd, ClamAV, SpamAssassin, and RoundCube with the help of iRedMail on Ubuntu 10.04.

We reported last month that a native ZFS module was coming to Linux and would be released in mid-September. Rather than using ZFS-FUSE that runs the Sun/Oracle ZFS file-system under the FUSE module so that it lives outside the Linux kernel (and runs rather slowly as our benchmarks show), this new ZFS module is native to Linux and open-source but due to the CDDL license it's being distributed as a module and will not be included in the mainline Linux kernel. This module has now entered a closed beta testing process.

Google's open source Android operating system is not as free as it seems, Microsoft argues, because it infringes a number of patents. When asked whether open source models created problems for vendors with licensed software, the software giant went on the offensive. "It does infringe on a bunch of patents, and there's a cost associated with that," Tivanka Ellawala, Microsoft financial officer told MarketWatch. "So there's a... cost associated with Android that doesn't make it free."

[There is nothing like some good old fashion Microsoft FUD for your Friday afternoon. - Scott]

Watching Ubuntu and Fedora development is something like watching episodes of Iron Chef: Given roughly the same ingredients and the same amount of time, the two projects produce vastly different dishes. The Fedora 14 and Ubuntu 10.10 release cycle is particularly pronounced in this regard, with Ubuntu's focus largely on refining improvements from 10.04 and Fedora introducing major changes to the infrastructure.

Reviewing HPC hardware is not easy. You usually need to travel to a data center and look at a rack of servers while someone tells you where they landed on the Top500 list. One could review a server, but basically they are all pretty much the same inside. They are running Linux and use either AMD or Intel processors. In addition, testing a cluster takes time because running meaningful programs that exercise the whole system must be done carefully. And finally, clusters are not sitting on the “shelf” as they vary by customer due to possible packaging, interconnect, processor, and storage choices.

According to Wikipedia, IMAP (Internet Message Access Protocol), together with POP is one of the most popular protocols for email retrieval. In this short tutorial I will show you how to set up KMail (the default email client in KDE4 and also most - if not all - distributions which ship it, like Kubuntu) with a GMail account, using IMAP as a protocol.

A vulnerability in the 32-bit compatibility mode of the current Linux kernel (and previous versions) for 64-bit systems can be exploited to escalate privileges. For instance, attackers can break into a system and exploit a hole in the web server to get complete root (also known as superuser) rights or permissions for a victim's system.

One of the new applications introduced with KDE 4 was Okular. KDE 3 had a PDF viewer named KPDF, but Okular aims to be a complete document viewing solution, supporting many different file types. Okular is fast-loading and works in any operating system and desktop environment that can run KDE applications.

Our two prior articles have detailed the performance results from a new patch, bcache, that uses SSDs to cache hard drives. We’ve looked at the throughput and IOPS performance of bcache and — while it is still very new and under heavy development — have found that in some cases it can help performance. This article examines the metadata performance of bcache hoping to also find areas where it can further boost performance.

OpenOffice.org just finished their annual conference in Budapest, Hungary. One of the outcomes of the conference announced today is the need for developers to spend more time together to properly fix problems.

Compiling the Linux kernel used to be a rite of passage, or just a necessity, for running Linux. It's not something most users need to do any more, but if you really want to compile your own kernel we'll show you how.

Out of the three kernels present in my Fedora 13 installation (one 2.6.33, two 2.6.34), my quest to gain a usable display (i.e. not blurry/out of sync) had me replacing the stock, open-source ati driver with ATI's own proprietary Catalyst fglrx driver. Today I decided to roll back to the open-source, community-developed ati driver and run 2.6.33.

As seen in a previous article on audio, there are many excellent open source tool to create professional solutions. Today I want to do a roundup on the video editing and show you some of the best open source software available for Linux to do video editing. OpenShot Kino Cinellera Lives Kdenlive Pitivi VideoLan Movie Creator

The title of this section, begs another question: "Why do I care?" One answer is that Unit testing is a best practice that has been evolving toward its current form over most of the time that programming has existed. Another answer is that the core principles of Unit testing are just good sense; it might actually be a little embarrassing to our community as a whole that it took us so long to recognize them.

Yesterday there was a gathering for a few hours among X.Org developers for those who arrived early into Toulouse. There were a number of topics discussed over those few hours while drinking Paulaner (though unfortunately, no interviews were yet recorded), including Wayland with Kristian Høgsberg.

Like many, I have watched with satisfaction the rise and rise of the Android mobile phone platform. After all, at its heart lies Linux, and much of it is open source. But not all: leading phones contain major proprietary elements that mean that Android is not the perfect free software system we have all been waiting for. It is, however, one of the best we have got at the moment, and a good place to start from.

Diaspora - a distributed social-networking project inspired by user anger at Facebook's privacy policy changes - today announced the public release of its source code to developers.

There is no question Battle for Wesnoth is the most played turn-based strategy game on the Linux platform, being probably the most polished, full-featured and addictive game in its category. In this article I will talk about development release 1.9, plans for the upcoming 2.0 release and the brand new features offered at the time of writing. For users who will want to try this game for the first time, keep in mind that the version reviewed here is a development version, that means it will be buggy and incomplete, with a lot of features stripped down or not working. Try the stable, 1.8.4 version instead.

My own sources have also now confirmed that VMware is Novell's suitor. I still don't know those critical questions of how much, when, or any of the rest. According to the WSJ, and this I have been unable to confirm, Novell's remaining assets, including NetWare, Novell's old network operating system may end up in the hands of "Attachmate, which is owned by private equity buyout firms, which include Golden Gate Capital and Francisco Partners.