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Linux

Building a Linux supercomputer using SSH and PVM

Post date: April 11, 2006, 21:04 Category: Network Views: 3210 Comments
Tutorial quote: If you have a couple of old Linux boxes sitting around, then you've got the makings of a supercomputer. Dust them off, install Secure Shell (SSH) and Parallel Virtual Machine (PVM), and start your complex algorithms.
Linux

Building a Linux virtual server

Post date: June 9, 2005, 14:06 Category: Software Views: 3019 Comments
Tutorial quote: With the explosive growth of the Internet, the workload on servers providing Web, email, and media services has increased greatly. More and more sites are being challenged to keep up with the growing demands and are employing several techniques to avoid overloading their servers. Building a scalable server on a cluster of computers is one of the solutions that is being effectively put to use. With such a cluster, the increasing requests can be easily managed by simply adding one or more new servers to the existing cluster as required. In this article we will look at setting up one such scalable, network load-balancing server cluster using a virtual server via the Linux Virtual Server Project.
Linux

The Serial Console

Post date: April 14, 2005, 13:04 Category: Hardware Views: 3214 Comments
Tutorial quote: In these modern times, a hardworking admin might be tempted to turn her back on the Old Ways, and indulge in increasingly exotic methods of interfacing with servers: SSH over ethernet, USB, Firewire, wireless, infrared, KVM switches, VNC, VPN... next stop: direct neural implants.

There's one old timer that still has useful place in the admin's tool kit: the serial console. Sure, it's slow and funky. But there are times it can be a real lifesaver. When nothing else works, it's a direct pipeline into your system. It's simple and cheap. You don't need to install drivers or expansion cards, it's just there.

Administration via serial console is common in data centers. Just imagine the nightmare of trying to connect all those rack units to keyboards and displays. The cabling can be extended to a nice comfortable ops center (well, an ops center, anyway). (This Lantronix Console Manager is an example of the type of device used to administer these.)

There are a number of ways to make the physical connection. You can connect an external modem--the kind us old timers fondly refer to as "real" modems--and do remote administration via dialup. It couldn't be any simpler, just dial direct. Or grab a null modem cable, connect to a laptop or a nearby workstation, and you have an instant terminal.
Linux

Building a GameCube Linux Kernel

Post date: January 23, 2006, 15:01 Category: System Views: 2474 Comments
Tutorial quote: This guide explains briefly the necessary steps to produce a Linux kernel suitable for the GameCube, using a Linux PC.
Ubuntu

How to Configure an $80 File Server in 45 Minutes

Post date: November 24, 2006, 03:11 Category: Miscellaneous Views: 3842 Comments
Tutorial quote: I use a modded Xbox and Xbox Media Center for playing media files across the network on my television and sound system. I also download large files, such as Linux ISOs, via BitTorrent. However, leaving my primary computer on all the time seemed like a waste of energy. I wanted a cheap, small headless machine that I could use as a Samba server and BitTorrent client so I could leave my workstation off when I wasn't using it.
Linux

Building XML With Java And DOM

Post date: October 30, 2009, 22:10 Category: Programming Views: 3844 Comments
Tutorial quote: This tutorial covers building basic XML structures in Java. Learn basic XML structure, and how to build XML in Java with DOM. Also learn to use the TransformerFactory to convert the DOM to strings.
Linux

How To Modify Your Gnu/Linux Box To Serve As A USB Over IP Server

Post date: January 7, 2010, 13:01 Category: Installing Views: 2749 Comments
Tutorial quote: There was a long time that I was looking for a way to put away my old CRM server! But why? Because I had installed a virtualization environment with Xen and all my servers are turned to small VPS on a nice pretty infrastructure. The base point was that the CRM had a USB/Lock and there was no way to take the lock under a virtualized VPS. This tutorial shows how you can set up a USB-over-IP server.
Linux

Build a Home Terabyte Backup System Using Linux

Post date: December 1, 2005, 01:12 Category: Miscellaneous Views: 3293 Comments
Tutorial quote: A terabyte-plus backup and storage system is now an affordable option for Linux users. This article discusses options for building and configuring an inexpensive, expandable, Linux-based backup server.
Linux

Configure Multiple Network Profiles on Linux

Post date: April 13, 2005, 02:04 Category: Network Views: 2613 Comments
Tutorial quote: Mobile Linux users face some interesting (OK, vexing) challenges when they want to plug into different networks. Any Linux system will easily support all manner of networking profiles--dialup, ISDN, Ethernet, wireless--the tricky bit is configuration. Manually re-configuring a PC for every connection is low on most users' lists of "fun things to do." You can be an ace scripting guru and fiddle up something yourself, or you can find a nice ready-made utility to do the work for you. Unfortunately, I have not found a universal utility to do this. However, there are a lot of utilities specific to various distributions, and an assortment of other utilities.
Debian

Building the ultimate Linux-based music server

Post date: July 24, 2007, 05:07 Category: Miscellaneous Views: 8635 Comments
Tutorial quote: This article describes how to build your own silent, fast, eco-friendly Linux-based PC for use in a digital music listening system. The PC is based on a high-end Via mini-ITX board, passively cooled case with heatpipe technology, Debian Linux, and a little creative embedded elbow grease.
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