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Search results for Xen Virtualization and Linux Clustering, Part 1

OpenSUSE

Virtual Box - How to Install & Configure in openSUSE

Post date: August 9, 2008, 17:08 Category: Emulation Views: 6882 Comments
Tutorial quote: VirtualBox is a family of powerful x86 virtualization products for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).
FreeBSD

FreeBSD Networking Basics

Post date: April 13, 2005, 00:04 Category: Network Views: 4293 Comments
Tutorial quote: Beginners to Unix-like operating systems such as FreeBSD are often stymied by their network settings. Sure, the install process may have set up your NIC for you, but where do you go to view these settings, and how do you proceed if your NIC stops working? Since networking is such an integral part of computing, this article will demonstrate how to verify, configure, and optimize your network settings.
Unix+clones

Using Gmail as GNOME’s default mailer

Post date: May 17, 2006, 15:05 Category: Desktop Views: 3553 Comments
Tutorial quote: I started using Gmail as my primary mail application a little over a year ago. For the most part, it has been a pleasurable experience. However, to my knowledge there has not been a simple way to make Gmail your default mailer in GNOME. There are firefox extensions that implement this functionality, but I used epiphany and the functionality does not extend to the entire GNOME desktop.
RedHat

How to set up a home DNS server

Post date: December 17, 2006, 17:12 Category: Network Views: 11318 Comments
Tutorial quote: In the first part of this series on the Domain Name System (DNS), we set up a caching nameserver that allowed our clients to take advantage of faster network operations by caching frequently requested DNS queries. In this article, we will extend our caching nameserver to a master nameserver that is responsible for managing the authoritative information for our internal client hostnames.
Unix+clones

OpenOffice Tips: Writer, Calc and Impress

Post date: April 14, 2005, 13:04 Category: Software Views: 3155 Comments
Tutorial quote: Making the switch from Microsoft Office to OpenOffice can save you a lot of money on licensing fees, and it isn't difficult--most people get used to the changes quickly. But if you've been using MS Office for the best part of a decade and learned a few of its tricks along the way, you may find yourself baffled about how to do certain tasks in OpenOffice. Here are a few tips on using Writer, Calc and Impress.
Ubuntu

Howto Convert Vmware Image to Virtualbox Image

Post date: March 10, 2009, 22:03 Category: System Views: 8125 Comments
Tutorial quote: VirtualBox is a family of powerful x86 virtualization products for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).

Ubuntu

Howto Install VirtualBox 1.6 in Ubuntu 8.04(Hardy Heron) including USB Support

Post date: July 27, 2008, 18:07 Category: System Views: 4080 Comments
Tutorial quote: VirtualBox is a family of powerful x86 virtualization products for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).
Unix+clones

Introduction to Python

Post date: April 17, 2005, 09:04 Category: Programming Views: 3556 Comments
Tutorial quote: Ok, first part is going to be fairly boring, but put up with it. Im just going to go through a few reasons why you should choose Python as a language to learn. First off it free!, there is no cost involved in gettin Python, although there is a license, but this is just a standard license that goes with all free and open source software. Python is an open source language, as is the interpreter (Python is written in C).
Ubuntu

KVM Guest Management With Virt-Manager On Ubuntu 8.10

Post date: February 10, 2009, 12:02 Category: Miscellaneous Views: 4995 Comments
Tutorial quote: Virt-Manager (Virtual Machine Manager) is a graphical interface for managing KVM and Xen guests on the local and also on remote systems. You can use it to start, stop, pause, create, and delete guests, and you can connect to the guests using the graphical console. This guide shows how you can use it to manage KVM guests on an Ubuntu 8.10 desktop.
Linux

Arcane Linux Commands: dc

Post date: December 31, 2007, 01:12 Category: Miscellaneous Views: 4206 Comments
Tutorial quote: If anybody within earshot of you is struggling to learn sed and ever remarks "This is like learning Klingon! Could they make it any more cryptic?", you can always point them to dc.

dc is the command-line Unix "Reverse-Polish Notation"(RPN) calculator. The name stands for "desktop calculator". OK, so what is a Polish calculator and why would you want to reverse one? The math that you do in school uses infix notation, with the operator between the numbers (3 + 5). Prefix notation puts the operator first (+ 3 5) and is what the Lisp language uses. The prefix notation is known as "Polish notation" after the nationality of Jan Łukasiewicz who invented it. Postfix notation, then, has the operator at the rear (3 5 +), and so is also the reverse of Polish notation.

What's the difference? In computer programming, you have to specify what order you want a multi-part calculation to be in. Everybody is familiar with the old problem of A*B-C. For A=5, B=3, C=2, multiplying first and subtracting second gives you 13, while subtracting first and multiplying second gives you 5. To specify which operations you want performed first, you have to either memorize the complex orders of operations (which change from one language to the next) or use a lot of parenthesis ((A*B)-C) or (A*(B-C)). Hey, that's what everybody complains about in all those languages that use parenthesis!
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