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Solid Ajax applications, Part 2: Building Ajax back ends

Back end processing — server-side scripts and programs — can't always be tossed into an Ajax application and behave well. Instead, careful planning to ensure data is sent in an appropriate and efficient form ensures your entire application is cohesive, rather than needlessly complex. Brett McLaughlin explains how a good server-side script complements Ajax behavior.

x86 Architecture Changes Merging in 2.6.25

The final 2.6.24 Linux kernel is expected any day now, so the various subsystem maintainers have begun summarizing what changes are expected to be merged into the mainline kernel during the 2.6.25 merge window. Ingo Molnar spoke to changes for the x86 architecture: "Continued, intense arch/x86 unification and cleanup work by lots of people; FIFO ticket spinlocks for better spinlock scalability; 'regset' generalizations - the most important step towards utrace support (==next-gen ptrace); support for more than 255 CPUs [up to 4096 - in theory up to 65535]; almost complete 64-bit paravirt guest support; KGDB support on x86, finally!"

Software emancipation: An open letter to Linus Torvalds

After years of watching the software industry twist itself in knots trying to differentiate “open” vs. “free” and having to re-invent code simply because it had the wrong comments at the top, I think it’s time to put an end to the madness. This promoted me to write the following letter to Linus Torvalds, creator of the Linux kernel.

Nortel considers Linux desktops for its staff

Nortel CIO Steve Bandrowczak, who joined the Canadian telecoms and network equipment vendor last July, said "more and more CIOs are looking at Linux desktop for reasons of TCO" and argued that the technology "is receiving the same level of attention today as when Linux started on servers." Nortel is Microsoft's closest partner among enterprise networking vendors in what to both of them is a key strategic area, Unified Communications. That Nortel should be looking at Linux on its own desktop machines is therefore an intriguing development

Are you a Slasher, Basher, Butcher or Pusher?

The Linux community and indeed the Open Source community in general is comprised of many different types of people. Their way of life, philosophy, age and location all vary widely with as many variations as the human face. However like the human face it can be categorized in a broad manner and stuffed into rather large boxes. This is my attempt at categorizing the face of Linux into four general areas. So take a deep breath, a pinch of salt and delve into the twisted psych of Locutus's mind. Don't forget it is all a case of mind over matter. If you don't mind, then it doesn't matter.

Low-power x86 board targets Linux network appliances

Via is sampling a single-board computer aimed at relatively high-end network appliances based on x86 Linux. Powered by a 1GHz, 1.5GHz, or 2GHz C7 processor, and supporting up to 3.5GB of DDR2 RAM, the Network Appliance Board (NAB) 7500 sports four gigabit Ethernet ports. Suggested uses for the NAB 7500 include firewalls, VPN routers, and more. The board is compatible with "many" Linux distributions, according to Via, with Gentoo being popular.

24C3 (24th Chaos Computer Congress)

I had the fortune this year of being able to attend 24C3, the 24th annual Chaos Computer Congress. The conference was a lot of fun–probably the first time in a long time (at least since chumby started) that I got to sit down and just hack for a couple of days on fun projects…in between going to really interesting and stimulating talks, and enjoying Berlin’s nightclub scene.

[And in between all that he manages to hack together a wifi-and-camera-controlled franken-chumby-robot on wheels. Very impressive! - Sander]

Linspire and Sears get into the $199 Linux PC business

The latest entry into the Linux-powered low-cost PC space is a Sears/Linspire box that features the Freespire version of the propretary-friendly operating system, with specs that seem to beat the $199 Everex PC featuring the gOS version of Linux and selling through Wal-Mart.

KDE4 shining points

  • Thoughts of a future engineer; By Cassanova (Posted by Cassanova on Jan 22, 2008 2:36 AM EDT)
  • Groups: KDE
KDE4 Libraries have witnessed major changes in order to make coding KDE applications an easier task. Many shining points in this new edition which make of the future of KDE more promising.

Ubuntu 6.06.2 LTS -- a better way to install the most stable Ubuntu

Ubuntu 6.06 LTS -- the distribution's first "long term support" release -- now has a new installer that incorporates some 600 bug and security fixes and makes installation easier, especially on servers. It's no secret that Canonical, the company that runs Ubuntu, is making a big play both for the desktop and more-lucrative server markets, and a big part of that play is the LTS release.

Asus Plans to Offer Windows on the Eee

Asus's Eee PC, an ultra-light notebook that runs Linux, will be available with Windows XP before the end of the quarter. Pricing has not yet been announced. It will be interesting to see which OS consumers choose.

Unshaking and refocusing your photos

Whether by wind, vibration, or shaky hand, we have all taken blurry photos. But in the digital era, there is no need to despair -- you can remove shake and blur from your pictures after the fact. Several Linux-friendly utilities can help you. Deconvolution is the general process that helps remove the effects of camera shake and blur. If you want to understand the math behind the process, start with the articles referenced at Wikipedia and you can find as much detail as you want. In a nutshell, it involves taking the Fast Fourier Transform of the image (which makes it easier to see the tell-tale signs of blurring), smoothing out the artifacts, then transforming the image back into its original form. It is a CPU-intensive process, but for a shaky image there is no better use of your MHz.

openSUSE 11.0 Alpha 1 Screenshots

  • The Coding Studio (Posted by lqsh on Jan 21, 2008 11:27 PM EDT)
  • Groups: Novell, SUSE
We kickstart a major development into the next version of openSUSE: openSUSE 11.0. A very early alpha version, Alpha 1, is now available for download and testing. Despite many other products being developed in parallel to Factory, we have seen a heavy stream of development on it, so it is really worth a try if you have time for testing. Screenshots at The Coding Studio.

Closing Day at the Release Event

After the star studded talks of the main event day, the final day of the KDE 4.0 Release Event returned to the un-conference format of small group talks, demos and discussions. KDE Dot News listened in to some of the sessions, read on for brief summaries. Benjamin Reed (RangerRick) started the day with a Q&A session on the Mac port of KDE. The Mac builds of KDE are available and work reasonably but there are a number of issues to be sorted yet as well as some bugs that have appeared with Qt using the latest version of OS X so it is not recommended for everyday use. Some unresolved issues include the duplication of Strigi against Apple's Spotlight and lack of a Solid backend. Benjamin hopes to have stable builds available for KDE 4.1.

Brightside extends GNOME window manager

Brightside is a small utility for extending the functionality of Metacity, the default window manager for the GNOME desktop. Now at version 1.4.0, it currently offers two mutually exclusive functions: corner actions that are activated when the mouse cursor moves to one of the desktop's corners, and scrolling with the mouse between desktops. Although its home page has been down recently, Brightside is widely available in the repositories of major distributions. A wiki for the project has been registered with -- although no content or contact information has been added yet -- so the project may be in the process of moving.

Arch Linux - Is this really a geek's distro?

  •; By vasanth (Posted by bigg on Jan 21, 2008 9:05 PM EDT)
  • Story Type: Reviews
Arch Linux, which was inspired by the CRUX is an i686 optimized lightweight distribution with a great package management tool. Arch releases usually contain a core cd image (~160 MB) that has a core system without any graphical servers and an FTP install image (~30 MB) with which you can install the entire OS from an FTP server. I decided to try arch as it seems to be one of the fastest and highly customizable distribution around(The real reason was since arch seems to be more of a "geek's distro" , I thought I could check my "geek level" with it :) ).

Tips and tricks: What is a Command Center notification and how can I acknowledge a notification?

A notification is an email, page or SNMP trap that is generated when a host changes its state or when a service check has exceeded the configured thresholds. Notifications are sent via three modes of communication: e-mail, SNMP trap, and pager. These can be acknowledged via e-mail. Only e-mail and pager notifications require acknowledgement, as SNMP traps do not participate in the escalation process.

Free Range, not Free Beer

I was eating breakfast in my favorite restaurant today and I noticed a sign up on the wall that said: "Free Range Eggs, $4.00 per dozen" Now at first I had the common knee-jerk reaction to the word "Free" that everyone does, thinking of the concept of "gratis". Then I realized that the word "Free" was related to "Range" and not the price of the eggs.

Two Mint Condition Original Unitech “unix Magic” Posters For Auction

I have two of these posters for auction. They are both original Unix Magic posters, in mint condition, rolled up for 20 years and never touched or hung....Proceeds will go to the DevChix Scholarship Fund, now that DevChix is nonprofit!

Writing a thesis with LaTeX

  •; By Tomasz Łuczak (Posted by michux on Jan 21, 2008 5:55 PM EDT)
  • Story Type: Tutorial; Groups: Linux
A dissertation is composed of two elements: the content and the form. The author is certainly the person best qualified to speak about the content. We, however, will focus on the form. We are going to see how to get a fine composition with low time expenditure using LaTeX.

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