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Tip: The Xen virtual machine monitor |
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Saturday, 06 November 2004 |
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Modern computers are sufficiently powerful to use virtualization to present the illusion of many smaller virtual machines (VMs), each running a separate operating system instance. Successful partitioning of a machine to support the concurrent execution of multiple operating systems poses several challenges. Firstly, virtual machines must be isolated from one another: it is not acceptable for the execution of one to adversely affect the performance of another. This is particularly true when virtual machines are owned by mutually untrusting users. Secondly, it is necessary to support a variety of different operating systems to accommodate the heterogeneity of popular applications. Thirdly, the performance overhead introduced by virtualization should be small. |
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Open Standards conference in the Netherlands |
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Friday, 05 November 2004 |
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The most important event of the European Information and Communication Technology calendar, the IST 2004 conference, will take place at the Netherlands Congress Centre in The Hague from the 15th to the 17th of November under the aegis of the Dutch Presidency of the European Union. The conference "Open Standards and Libre Software in Government" will take place in coordination with the Dutch Presidency at the same venue immediately afterwards. |
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Tip: Writing Shell Scripts |
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Monday, 01 November 2004 |
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With the thousands of commands available for the command line user, how can you remember them all? The answer is, you don't. The real power of the computer is its ability to do the work for you. To get it to do that, we use the power of the shell to automate things. We write scripts. |
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Trick: High-availability web server |
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Sunday, 31 October 2004 |
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Using any software product in a business-critical or mission-critical environment requires that you consider availability, a measure of the ability of a system to do what it is supposed to do, even in the presence of crashes, equipment failures, and environmental mishaps. As more and more critical commercial applications move onto the Internet, providing highly available services becomes increasingly important. |
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New Multi Network Firewall (Beta) released |
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Tuesday, 26 October 2004 |
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Mandrakesoft's integrated network security solution, Multi Network Firewall (MNF), combines firewall, Virtual Private Network (VPN), intrusion detection, and traffic management functions into an easy-to-use product. Through a secure Web interface which utilizes finely-tuned wizards, network administrators can easily build a network, define access rules, filter and monitor Internet content, and perform administration tasks. |
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SUSE LINUX 9.2 Live CD/DVD available |
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Monday, 25 October 2004 |
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The upcoming SUSE LINUX 9.2 has yet to hit the retail stores, but the product's two live CDs (with either KDE or GNOME) and a live DVD are now available for free download: "This directory contains three different versions of Live media for SUSE LINUX Professional 9.2. LiveDVD.iso: the LiveDVD that comes with both GNOME and KDE desktops and a number of popular applications. |
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