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Finally Mark Jonson submitted to xen-devel mailing list patch for ZFS 24 support at Xen 4.0. Patch mentioned bellow was successfully tested at Xen 4.0 Dom0 with pvops kernel 2.6.32.11 on top of Fedora 12 via modifying Michael’s Young xen-4.0.0.7.fc12.src.rpm and direct patching xen 4.0 official tarball on Ubuntu Karmic Koala Server.

I've 10Mbps server port dedicated to our small business server. The server also act as a backup DNS server and I'd like to slow down outbound traffic on port 80. How do I limit bandwidth allocation to http service 5Mbps (burst to 8Mbps) at peak times so that DNS and other service will not go down due to heavy activity under Linux operating systems? You need use the tc command which can slow down traffic for given port and services on servers and it is called traffic shaping.

An article headline declares, "This is the year of the death of Linux on the desktop." These stories scroll along on the same news websites on the same day. To top it off, squeezed in between these headlines are even more predictions about things I thought were really dead… SCO for instance.

Z-push is an implementation of the ActiveSync protocol which is used 'over-the-air' for multi platform ActiveSync devices, including Windows Mobile, iPhone, Sony Ericsson and Nokia mobile devices. With Z-push any groupware can be connected and synced with these devices. This install of Z-Push is on a The Perfect Server - Debian Lenny (Debian 5.0) [ISPConfig 3] setup.

Joystiq contacted Amanita Design founder Jakub Dvorský for to clarify the situation. "They told us, 'It's not Microsoft-exclusive, we don't want it.' They didn't cite the Mac and Linux versions [as reasons for the refusal] but it's quite clear that's the reason," Dvorský told Joystiq via email. As it did with Toki HD, Microsoft recommended Amanita Design pursue other publishers, an idea the team doesn't appear intent on exploring. "It means if we want to release the game on XBLA we must throw, probably, most of the profit out of the window -- to the publisher. Just because we created Mac and Linux versions."

Dansguardian is a great way to implement content filtering for an oarganization or family setting. Content filtering can be adjusted to specific needs including; web site content, file types, ports, downloads and scanning for viruses. Dansguardian is easy to install and modify.

I guess it was bound to happen sooner or later. I needed to get the laptop back into usable shape, and I did that by installing Ubuntu 10.04 LTS beta 2. While trying to do an update on my FreeBSD 7.3-release installation, well into the third day of the system building everything from source, I stopped that upgrade and tried to do one from packages only. Nope, it didn't work.

This past weekend (April 9th and 10th), I had the great pleasure to attend COSSFEST 2010 in Calgary. COSSFEST is the Calgary Open Source Systems Festival, a gathering of people whose passion is free and open source software, coming together to share information, exchange ideas, and otherwise talk about all things FOSS. Oh, and drink beer. And eat, too. Yeah, right . . . there's that karaoke thing we'd rather not talk about.

When Google announced a deal to acquire video technology company On2 last year, the move generated speculation that the search giant was aiming to liberate the VP8 codec in order to accelerate the advancement of standards-based open video. Google has remained silent about its plans for On2's intellectual property, but signs have emerged that the company is planning to do precisely what the speculators anticipated.

The popular Linux distribution, Fedora 13, has been released to its final beta and is chock full of features for enterprise use. Code-named Goddard, the beta version was released on Tuesday with the final version slated for May 18.

Google will soon make its VP8 video codec open source, we’ve learned from multiple sources. The company is scheduled to officially announce the release at its Google I/O developers conference next month, a source with knowledge of the announcement said. And with that release, Mozilla — maker of the Firefox browser — and Google Chrome are expected to also announce support for HTML5 video playback using the new open codec.

If you’re a Linux user, you’ve likely been asked at some point if you want Ext3, Ext4, XFS, ReiserFS, Btrfs, or one of many other filesystem acronyms. This choice confuses new and old users alike, and like all software, the options change as technology improves. Many people probably don’t care what filesystem they use as long as it’s stable and reasonably fast, but how do you know which one that is? This guide will attempt to cover the basic differences between the most common options, and provide the pros and cons of each choice.

In this article series by Reynante Martinez, we will learn how to go about creating a underwater scene from scratch. We will begin by creating the terrain for the underwater environment. In the sequel of the article, we will learn how to add vegetation, pebbles and corals. After which we will discuss how to add distant terrains, lighting effects and finally composition.

I’m certain, given the things that have, or in some cases, have not, happened since the completion of the sale of Sun to Oracle, that many would have wished that IBM had purchased the flailing company. Those seeing the commitment of IBM to many open source projects would tend to believe that the progress of the many Sun projects would be better served under the aegis of IBM. As it is, many are wondering what is going to happen to the many Sun projects, with the Java stream being probably the only thing not in some cloud of possible excision from living efforts.

Microsoft has been busy these past few days reminding the world that it really is an organization of monstrous proportions and its tendrils reach from the humblest consumer desktop right up to the level of super-computing. Its message is clear: The company has no intention of giving up any of the markets in which it competes to open source operating systems like Linux -- at least not without the mother of all fights.

Google will take a swashbuckling step towards license-free web video playback next month when it open sources the leading video codec from a company it just acquired for $124.6 million, according to a report citing multiple people familiar with the matter. NewTeeVee reports that Mountain View will open source On2's VP8 codec at its Google I/O developers conference in San Francisco in mid-May. The publication also says that Google will roll the codec into its Chrome browser, and that Mozilla will do the same with Firefox.

Originally, PDF export in OpenOffice.org was limited to three levels of quality, whose exact differences were obscure to most users. But that was many releases ago. The latest versions of OpenOffice.org provide, for no cost, most of the features available in Acrobat Standard for $299 -- to say nothing of a few features that even Acrobat Pro Extended does not include even at $699. The problem for many people is knowing what options they might want, especially since the wording of the dialog window is sloppy in a couple of places.

Expected for release in May, Linux kernel version 2.6.34 contains several new network drivers and various advancements designed to improve network performance or increase network configuration flexibility, which will particularly impact virtualisation.

What happened to the old "sysadmin" of just a few years ago? We've split what used to be the sysadmin into application teams, server teams, storage teams, and network teams. Now look at what we've done -- knowledge is so decentralized we must invent new roles to act as liaisons between all the IT groups.

Last week we shared that we were benchmarking Ubuntu's current and past LTS releases and began by running graphics benchmarks looking at how the proprietary drivers from the past compare to open-source drivers from the present, but now we have our assortment of system benchmarks to publish from the Long-Term Support releases of Ubuntu 6.06.1, Ubuntu 8.04.4, and an Ubuntu 10.04 development snapshot. In this article, we are looking at how Ubuntu's performance has evolved over the past four years.