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Every mail server administrator dreads his or her server becoming compromised by spammers. A lot of effort, time and even money is spent on securing mail servers and making sure that the servers do not become open relay. This tutorial will focus on setting up a Postfix SMTP server to use Dovecot SASL for user authentication. Simple Authentication and Security Layer (SASL) is a framework that can be used by many connection-oriented Internet protocols for securing data, servers and users. With SASL enabled, Postfix will not accept any incoming SMTP connections without proper authentication.

Que, QI host? WHAT DO YOU MEAN Kildall was 'cracked'? What are we to do with Stephen Fry? Britain's go-to guy for advertisement voice-overs has had another attempt at explaining computing history, in his own unique way. But he's got it wrong, and at the same time sullied the memory of one of the industry's true pioneers.…

The open source license you choose for your project, or for the projects you choose to contribute to, can have significant effects on how what you contribute is used. One question that has garnered quite a bit of interest recently is the fall in popularity of copyleft licenses in favor of permissive licenses. An article last year looked at the issue of large number of projects on GitHub that have no explicit license and posited the question about whether we live in a 'post open source software' world, where seemingly open source software has no license. After some time, GitHub agreed that licensing is important and worked to improve the situation with a license chooser.

The openSUSE Project has just announced that openSUSE 12.2 has reached end of life (EOL) and it will no longer be supported.

When I first started working at the Open Technology Institute (OTI), I was consistently challenged with the question: "Why would a UX designer want to work at an open source organization?" The truth, in my opinion, is almost all design and usability work is by its nature open source.

Release 3.8.1 of WordPress is available for download. This is a maintenance release that provides fixes to issues and bugs noticed in the previous version and we recommend upgrading your WordPress installation.

If Poche is a new on one you, it is an Open Source read-later application competing with non-free versions like Pocket and Instapaper. It is developed by Nicolas Lœuillet, a French developer.

Giving back isn't just about code.

Oikyo Linux 1.0 is available. Oikyo Linux is an Ubuntu-based Linux distribution that comes with three desktop environments (Unity, KDE and GNOME) on the installation media. It comes with some visual effects that make it even better than just preinstalled softwares. It's designed so that you don't have to be an expert to use the OS.

Back in the early days of the Snowden affair, when it first became obvious that Microsoft and others had co-operated with the NSA's agenda to spy on every living human being on the planet who owned a computer, we said this wouldn't bode well for those who make their living from tech in the U.S. We thought that proprietary software vendors would be most vulnerable due to their lack of transparency, i.e., the lack of available source code, especially after Redmond was exposed for building secret access into Windows.

One of my favorite quotes is "We are what we celebrate." Dean Kamen, founder of FIRST Robotics, says this and it comes up on an almost daily basis one way or another in my work in open source hardware and education. One of the challenges of getting more young people into engineering and computer programming is that we're collectively competing with the high profile status that becoming a famous, professional athlete or musician, or reality show star, promises. I don't expect the mass media to change, because change happens from small groups of motivated people. And, this is where the maker, hacker, and open source software and hardware communities are making great progress.

Ohava Computers will be releasing their Alpha early spring 2014 which will include: Free On-Demand Computing, (a free 512MB virtual machine, or 1000 hour/month scalable cloud instance), and an open source marketplace.

Intel’s Linux-friendly (Next Unit of Computing) mini-PCs are aimed at home theater applications, as well as other general-purpose mini-PC duties. Previous models have featured Intel Core processors, including 4th Gen. “Haswell” CPUs, but for the first time, Intel has launched a NUC Kit DN2820FYKH model based on the Celeron N2820. This 2.4GHz dual-core processor shares the same 22nm “Silvermont” architecture as the Atom E3800 (Bay Trail-I).

pax is one of the lesser known utilities in a typical Linux installation. That's too bad, because pax has a very good feature set, and its command-line options are easy to understand and remember. pax is an archiver, like tar(1), but it's also a better version of cp(1) in some ways, not least because you can use pax with SSH to copy sets of files over a network. Once you learn pax, you may wonder how you lived without it all these years.

After this weekend carrying out a 25-way open-source Linux graphics driver comparison featuring AMD Radeon, Intel HD Graphics, and NVIDIA GeForce hardware, the tables have now turned to look at nearly the same assortment of hardware but when using the high-performance, proprietary Linux graphics drivers. We've also upped the demanding OpenGL benchmarks used -- including the Source Engine -- as we see how the AMD and NVIDIA binary graphics drivers are doing to start 2014.

The goal is to write an app’s non-UI code (such as data access, or application logic) in Java, which is then shared by web apps (using GWT), Android apps and iOS apps.

With a fresh round of Mesa Git commits on Monday morning the support landed for OpenGL 3.2 and OpenGL 3.3 within Nouveau's NV50 and NVC0 Gallium3D drivers.

For those curious about performance differences between the current Debian 7.3 "Wheezy" stable release and the upcoming but currently unstable Debian 8.0 "Jessie", here are some performance benchmarks comparing Debian's stable and testing releases on the same hardware. Making things more interesting, Ubuntu 14.04 LTS in its current development form was also tossed into the mix.

Google, through Karen Grunberg and Daniel Xie, has announced earlier today, January 27, the immediate availability for download of a new maintenance release for the stable branch of the Google Chrome 32 web browser, for Linux, Windows, Mac and Chrome Frame platforms.

Gigastrand OS 1.0 is available. Gigastrand has a vision of a purpose-built operating system that appeals to a wide-variety of people and aids Windows and MAC users in the transition to Linux. Ubuntu, Linux Mint and others have done a beautiful job of creating an OS that appeals to most of what Gigastrand sets out to do - but not everything. The areas that we feel Linux Mint does not cover are areas for improvement and areas that fit well into the Gigastrand model.