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Fedora+Core

Building a Linux cluster on a budget

Post date: November 18, 2005, 19:11 Category: Network Views: 3935 Comments
Tutorial quote: So you need a lot of computing power but don't want to spend tens of thousands of dollars on a commercial cluster? Or maybe you just have a lot of machines sitting idle that you would like to put to good use? You can build a powerful and scalable Linux cluster using only free software and off-the-shelf components. Here's how.
Unix+clones

Building a cheap secure wireless (WLAN) infrastructure with OpenVPN and Linux

Post date: January 2, 2007, 19:01 Category: Security Views: 4022 Comments
Tutorial quote: WEP is insecure and having different WPA authentications at different Access Points can be a pain. Why not centralize all your meeting rooms with OpenVPN to a central server? This tutorial gets you up to speed.
Linux

Building a Virtual Cluster with Xen

Post date: September 28, 2006, 04:09 Category: Emulation Views: 7439 Comments
Tutorial quote: It is a common practice to have development and test servers for each production server, so that you can experiment with changes without the fear of breaking anything important, but this is usually not feasible with clusters. So how do you try that new version of your favorite program before committing it to the production cluster? A cheap and convenient possibility is to build a virtual cluster.

Thanks to the Xen virtual machine monitor, you can create a number of virtual machines, all running simultaneously in your computer, install different operating systems in them, or just different configurations, and connect them via (virtual) network cards. Xen is a terrific tool for building virtual Beowulf clusters. It can prove useful when learning or teaching about clusters or for testing new features/software without the fear of causing major damage to an existing cluster.
Debian

Darkstat - Nework Traffic Analyzer or Network Monitor

Post date: July 3, 2006, 16:07 Category: Network Views: 3134 Comments
Tutorial quote: darkstat is a network statistics gatherer.

Effectively, it's a packet sniffer which runs as a background process on a cable/DSL router, gathers all sorts of useless but interesting statistics,and serves them over HTTP.
Linux

Building a Linux Cluster, Part 1

Post date: April 18, 2005, 03:04 Category: Network Views: 2361 Comments
Tutorial quote: Linux clusters have escaped. As the general popularity of the Linux operating system increases, more complex solutions built with it are becoming increasingly common in the "traditional" (more conservative) IT world. Linux computer clusters, whose provenance was originally universities and research institutions such as the U.S. National Laboratories, are showing up in increasing numbers as high-performance computing solutions within such areas as oil and gas exploration, computer-aided engineering, visualization, and software development. Linux clusters providing highly-available web, mail, and other infrastructure services are also increasingly common. If past computing history is any indicator of future trends, widespread use of Linux clusters in the mainstream IT world cannot be far behind.
Ubuntu

Enable WPA Wireless access point in Ubuntu

Post date: February 15, 2007, 01:02 Category: Network Views: 4465 Comments
Tutorial quote: I have a Thoshiba laptop at home, I was running “Edgy Eft” (Ubuntu Linux 6.10) But one of the important things about it was its inability to connect to WPA-encrypted Wifi access points.In my home i have a WPA Enabled Wireless router so i need to connect to my wireless network using WPA.I am giving the procedure that worked for me to enable wpa in my toshiba laptop.This will work most of ubuntu users who is trying to access WPA network.
Debian

eBox Installation and Configuration

Post date: June 12, 2006, 22:06 Category: Software Views: 3286 Comments
Tutorial quote: eBox management tool will effectively and easily help you managing the advanced services for your corporate network. eBox is a framework for the development and deployment of network services in small and medium-sized networks, offering a simplified graphical interface to non expert users. It can be set up as a gateway, having some extra features over a usual router.

Debian

How to Create an adhoc host with Ubuntu

Post date: March 2, 2009, 07:03 Category: System Views: 4075 Comments
Tutorial quote: Have you ever needed to wirelessly network a Windows PCís directly to a Ubuntu machine? In other words, you lack a router, switch, or other networking mechanism, each PC has a wireless device and you need to trade a file or play a network game? Read on.Ubuntuís NetworkManager 0.7.0 contains the necessary features for creating an Ubuntu adhoc network host.

Debian

Building A Virtual Server (VPS) With Debian 3.1 (Sarge) And OpenVZ

Post date: March 20, 2006, 20:03 Category: System Views: 3173 Comments
Tutorial quote: In this HowTo I will describe the steps to be taken to prepare a server for OpenVZ virtual machines on Debian 3.1 (Sarge) 32Bit Linux. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernal patch is licensed under the GPL license, and the user-level tools are under the QPL license.
RedHat

RH 9.0 Apache 2.0.47 + Tomcat 4.1.27 HOWTO

Post date: April 9, 2006, 14:04 Category: Software Views: 6055 Comments
Tutorial quote: Building an Apache HTTP + Tomcat environment is five major steps.
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