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Knowing your UNIX network layout will go a long way with understanding your network and how it operates. But what happens when the performance of your UNIX network and the speed at which you can transfer files or connect to services suddenly reduces? How do you diagnose the issues and work out where in your network the problems lie? This article looks at some quick methods for finding and identifying performance issues and the steps to start resolving them.

With the Linux 2.6.32 kernel merge window opening up this month, open-source developers around the world have been busy working on their code that they wish to push into this next major kernel update. There is already 3D and KMS support coming to the R600/700 hardware from ATI with this next kernel release along with the KMS page-flipping ioctl and other graphics-related changes, but now Novell's Greg Kroah-Hartman has written a lengthy message detailing the status of the different drivers in the staging tree for Linux 2.6.32.

Tonight we experienced a world premier - the XO-1.5 laptop from OLPC debuted at the OLPC Learning Club DC - and we broadcast it live via OLPC News on Twitter. This newest laptop from OLPC features the VIA C7-M a 1GHz variable speed processor, which SJ Klein of OLPC says will empower learning in several key ways..

Mark Jason Dominus' Higher-Order Perl book is now available for free download in PDF format by virtue of special permission from the publisher. The book is about functional programming techniques in Perl. It's about how to write functions that can modify and manufacture other functions. That way your code is more flexible and more reusable. Instead of writing ten similar functions, you write a general pattern or framework that can generate the functions you want; then you generate just the functions you need according to the pattern.

Ipoque of Leipzig, Germany has published parts of its deep packet inspection technology under the LGPLv3 open source license. Called OpenDPI, the software library is based on Ipoque's commercial Protocol and Application Classification Engine (PACE), which the vendor says classifies internet traffic.

Chromium Web Browser( Google Chrome for Linux ie ) has already won a lot of accolades among Ubuntu/Linux users. I am so impressed with this new chromium web browser, that i may even use it as my regular browser. Flash support is not available by default, but by a little bit of tweaking, you can enable it too.

TomTom is launching OpenLR™ as royalty-free technology and open Industry Standard, and it invites the ITS Industry to join and adopt it. This step will facilitate new business opportunities in various areas of Intelligent Transport Systems (ITS) such as traffic information services, map content exchange and Cooperative Systems where precise and compact dynamic location information is needed. The map-agnostic feature of OpenLR™ enables reliable data exchange and cross-referencing using digital maps of different vendors and versions.

[A GPLv2 licensed standard from TomTom? Really? - Scott]

Unless you've been hiding in a cave for the past ten years or so, you know that it takes more than a bit of HTML slight-of-hand to make a modern, dynamic website. The (so-called) Web 2.0 is constructed of a mix of technologies, creatively applied to allow the interactivity we have become accustomed to when surfing the web. Just looking at the front and back covers of Robin Nixon's book, he (and O'Reilly) promises to teach the reader all of the technologies (though I see no mention of CSS) required to bring your Web 2.0 creation to life, and send it out on the Internet. The best bit of news is that, according to the back cover blurb, "No previous programming experience is required." Really? We'll see.

Version 5.9.5 of PLplot has been released. PLplot is a cross-platform, scientific graphics plotting library.

In this article I finish the process we started in the last episode. After all the preparation described in the first part of this article the build process itself is rather anticlimactic. Building from sources with the GNU autotools is this easy..

Microsoft has been spending hundreds of millions of dollars lately trying to "screw" its competitors. It might try concentrating on making quality products instead.

The Microsoft Corporation is striving to maintain its grip on the Computer market by misleading Computer Store Sales Personel. Their plan has back fired. As an annoyed Trainee has posted screen shots of the slides contained in the Microsoft Training session on a Forum. Followed by comments where both the Trainee and other Linux users expose the various falsehoods taught in the training session.

After placing its bets for years on Xen, Red Hat moved recently towards official support for KVM, the virtualization hypervisor built into the Linux kernel. Here’s a look at what this change might mean for Ubuntu, which has promoted KVM from the beginning.

Earlier this week, the Wall Street Journal’s Nick Wingfield broke a story on Microsoft selling a group of patents to a third party. The end result of this story is good for Linux, even though it doesn’t placate fears of ongoing attacks by Microsoft. Open Invention Network, working with its members and the Linux Foundation, pulled off a coup, managing to acquire some of the very patents that seem to have been at the heart of recent Microsoft FUD campaigns against Linux. Break out your white hats: the good guys won.

Good old-fashioned cron and mail can easily be set up to send yourself email reminders for anything you want. Juliet Kemp shows how.

Videos, some keynote speeches and talks and PDFs of many of the presentations given at the Red Hat Summit 2009 and JBoss World Chicago 2009 conferences, held in parallel last week, are now available from the conference websites.

GDM is the GNOME Display Manager, a graphical login program, which provides a simpler alternative display manager for the X Window System's XDM. GDM is released under the GNU General Public License (GPL). The X Window System by default uses the XDM display manager. However, resolving XDM configuration issues typically involves editing a configuration file. GDM allows users to customize or troubleshoot settings without having to resort to a command line. Users can pick their session type on a per-login basis. GDM also features easy customization with themes.

Earlier than previously announced, the OpenOffice Project has released information regarding the newest security updates, spurred on due to gaps in security.

Linux vendor Red Hat sure doesn't seem to like Microsoft much. Red Hat is now alleging that Microsoft is not committed to the path of peace with open source software vendors. "This latest attempt to encourage patent aggression by trolls against FOSS further shows that Microsoft is not yet committed to the path of peace with the open source software community and appears intent on inappropriately preserving and extending its dominant market positions in the operating system and personal productivity suites," Red Hat stated.

This year is not the year of the Linux desktop. Next year is not the year of the Linux desktop. In fact, NO year is the year of the Linux desktop. Every year, there are at least ten writers (Ashamedly, I'm included in that ten) who proclaim that the current year or the upcoming year will be the year of the Linux desktop. I've given up hope for it. I've given up on the idea of an acceptable level of Linux adoption on the desktop. I've given up on the prospect of ever having corporate Linux desktops and I think everyone else should too.