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I'm surprised that I forgot how this works: When you install Debian without using a network mirror (either from the first CD of the full set or, my preferred method, with the DVD image), /etc/apt/sources.list is set up with a Debian mirror for security updates. However, there is no entry for the Debian software repositories, and if you want to add applications from a network mirror, you'll need to modify /etc/apt/sources.list accordingly.

iRedMail is a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes. Since version 0.5, iRedMail supports Ubuntu 8.04, 9.04 (it supports both i386 and x86_64). Its object is to make a Linux mail server installation and configuration simple and easy to use. iRedMail supports both OpenLDAP and MySQL as backends for storing virtual domains and users. This tutorial shows how to use the OpenLDAP backend.

Just days after Gentoo resurrected itself with a new LiveDVD release in celebration of its 10th birthday, the developers behind the Yoper Linux distribution have come around with a new development release of its own. Yoper dates back to 2003, and one of their goals is to be the fastest out-of-the-box Linux distribution, but there has not been a new stable release in 28 months and it is not on a rolling release cycle like Gentoo or Arch. The new release for this distribution is Yoper 2009 Beta 1 "Dresden" and ships with all of the latest Linux packages and offers a new installer and various other improvements. Yoper also remains one of the few distributions shipping with a Zen-powered kernel, and on top of that, they even offer a kernel with the BFS scheduler.

Amarok 2.2 codenamed sunjammer is released. This all new release comes with a lot of improvements and bug fixes. Take a look at the new feature list and easy to do installation steps for Amarok 2.2 in Ubuntu.

The cron-apt package, combines the cron and apt utilities, and provides flexibility and a simpler interface as well as supporting e-mail alerts on errors or new information.

Today we are announcing the winners of the Social Desktop Contest. The Social Desktop Contest was launched in June with the goal to bring Web 2.0 ideas and our user and developer community closer to the desktop and foster community development and innovations around the OCS API.

Australian Software Firm Releases the “nuBuilder Package” a Web-Based Alternative to Microsoft Access® - under the Open Source GPL3 License.

The Jetty developers have released version 7 of their popular Java Servlet container. The source code for the new release is available from the Eclipse Foundation under the Eclipse Public Licence (EPL); Jetty 6 continues to be available from the Codehaus project under the Apache 2 license. Jetty 7 is the first major release of Jetty from the Eclipse Foundation since the project moved under the Eclipse umbrella.

Iomega announced a Linux-based, dual-drive networked attached storage (NAS) appliance for the home-business and consumer market. The Iomega StorCenter ix2-200 is available in 1TB, 2TB, and 4TB capacities, and offers RAID 1 support, user-replaceable storage, a QuikTransfer copy button, 5-18 Watt power consumption, and a DLNA/UPnP media server, says Iomega.

A lot has been written recently about so called “Open Core” software ever since Andrew Lampitt coined the term back in August of 2008. Many analysts have been critical about it, such as Richard Hillesley from The H Open in his recent article “Open core, closed heart?”. Many are also very positive about it such as Matt Aslett from The 451 Group. However, I think that most them are missing the elephant in the room: Open core is not sustainable in the long term because it represents the worst of both worlds. Open core tries to find a middle ground between proprietary software and free software, but it reaps the benefits of neither and inherits the problems of both.Let me show you by example. SugarCRM is one of the more popular open core software products available. The company offers the Community Edition for free under a GPLv3 license but also offers a Professional and Enterprise edition under a proprietary license. SugarCRM has been around since 2004 but it is already showing many signs of not being sustainable.

We’re seeking the greatest, most innovative minds in our community for mind-altering, life-changing discussions. We are reaching out to key community members and requesting their suggestions regarding potential speakers for our events. For our first event, our theme is innovation in health care and collaboration. If you have in mind a person in your network that is truly a world-class innovator in their field, please contact us here.

Although Windows 7 has been praised for loading and shutting down faster than prior versions of Windows, one software company says that, in many cases, the new operating system can take longer to get started than Windows Vista. The results are also fairly similar to what CNET found in its testing of the operating system. A Microsoft representative was not immediately able to comment on Iolo's findings.

[Can take longer to boot than Vista? Impressive.. - Scott]

You've probably heard that everything in Linux is a file, so start on the right path with a solid grounding in file and directory management -- finding, listing, moving, copying, and archiving. You can use this material in this article to study for the LPI 101 exam for Linux system administrator certification, or just to learn for fun.

Customizing and building your own Linux kernel, rather than sticking with the kitchen-sink distribution kernels, means you can add new experimental drivers, get rid of drivers you don't need, fix mistakes created by your chosen distro, and make a lean, mean and fast kernel. Akkana Peck continues her series on kernel building.

EDE (Equinox Desktop Environment) is small and portable desktop environment designed to be lightweight in memory and resource usage.

Almost the entire public sector, 96 percent, is using open source, says a French market survey. The most used applications are database management systems and content management systems.

The Italy-based Sabayon community released a stable version 5.0 of its Gentoo-based Linux distribution. Sabayon Linux 5.0 is available in separate editions with either the GNOME 2.26 or KDE 4.3.1 desktops, and moves up to Linux kernel 2.6.31, XBMC 9.04.1, and the Ext4 filesystem.

Alpine is like pine, and Pine Is Not Elm. If you are still with me on this, you might be the kind of person who appreciates command line text base email systems . And if you are, and you are just installing alpine, this is how to make it remember your passwords.

The quotas mini-course is designed to help you implement quotas for users and groups. Quotas are a way to guarantee resources for your users. The guarantee of resources to your users is fundamental to good system administration. When users run out of space there is always trouble and you can be sure as administrator that trouble will be pointed at you. Whenever you implement quotas with users it is a good idea to create soft limits which provide them a warning for 7 days but during that time they can still save.

Not every open source project could support successful businesses. In part 2 of the series "An Open Source Business," we talk about what is required for an open source project to become a successful business.