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Debian

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

Post date: March 20, 2006, 20:03 Category: System Views: 3780 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.
Linux

Creating Really Teensy ELF Executables for Linux

Post date: April 12, 2005, 18:04 Category: Miscellaneous Views: 3221 Comments
Tutorial quote: If you're a programmer who's become fed up with software bloat, then may you find herein the perfect antidote.

This document explores methods for squeezing excess bytes out of simple programs. (Of course, the more practical purpose of this document is to describe a few of the inner workings of the ELF file format and the Linux operating system. But hopefully you can also learn something about how to make really teensy ELF executables in the process.)

Please note that the information and examples given here are, for the most part, specific to ELF executables on a Linux platform running under an Intel-386 architecture. I imagine that a good bit of the information is applicable to other ELF-based Unices, but my experiences with such are too limited for me to say with certainty.

The assembly code that appears in this document is written for use with Nasm. (Besides being more appropriate for our needs, Nasm's syntax beats the hell out of AT&T syntax for anyone who learned x86 assembly language before learning to use Gas.) Nasm is freely available and extremely portable; see http://nasm.sourceforge.net/.

Please also note that if you aren't a little bit familiar with assembly code, you may find parts of this document sort of hard to follow.
Linux

Building a Linux virtual server

Post date: June 9, 2005, 14:06 Category: Software Views: 3478 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

Modify Your Partitions With GParted Without Losing Data

Post date: January 23, 2007, 23:01 Category: System Views: 4432 Comments
Tutorial quote: This article shows how you can modify the partitioning of your Linux system with GParted (Gnome Partition Editor) without losing data. This includes resizing partitions (enlarging and shrinking), moving partitions on the hard drive, creating and deleting partitions, and even modifying filesystem types. GParted is a free partition editor available as a desktop program and also as a Live-CD. It supports the following filesystems: ext2, ext3, fat16, fat32, hfs, hfs+, jfs, linux-swap, reiserfs, reiser4, ufs, xfs, and even ntfs (Windows).
Linux

Rip DVDs in Linux the (Semi-)Easy Way

Post date: December 8, 2007, 14:12 Category: Multimedia Views: 4011 Comments
Tutorial quote: With its hacker-friendly aesthetic and open source mentality, you'd think a Linux desktop would be the best place to assert your digital rights—you know, make backup copies of your DVDs, convert them for iPods, that kind of thing.

And you'd be half right. There are plenty of programs that let you take control of your video discs, but they're only useful if you can make it through a maze of configuration menus, command line options, choices about bit rates and codecs, and the occasional confusing message about a missing library.

I've tried out a good number of DVD ripping and conversion programs, and I've made peace with one method, and one program, that gets the job done more often than not. It's not exactly one-click, but once your system is set up, you can drop in DVDs and back them up or convert them with relative ease.

Note on system differences: I set up my ripping/burning system on a Lenovo Thinkpad T61 running a brand-new installation of Ubuntu 7.10 (Gutsy Gibbon). As with so many things Linux, packages and commands may vary based on your system. But for the most part, the tools I use in this walkthrough work across distributions and on both major desktop environments, GNOME and KDE.
OpenSUSE

Elisa - open Media center, multimedia player for openSUSE Linux

Post date: September 11, 2008, 22:09 Category: Multimedia Views: 5276 Comments
Tutorial quote: Elisa is an open source cross-platform media center connecting the Internet to an all-in-one media player. While primary development and deployment platform is GNU/Linux and Unix operating systems, elisa also currently support Microsoft Windows. Elisa runs on top of the GStreamer multimedia framework. In addition to personal video recorder functionality (PVR) and Music Jukebox support, Elisa will also interoperate with devices following the DLNA standard like Intel’s ViiV systems.
Linux

Install Java JRE 1.6.0 (Update x) in Linux as the Default Java Runtime, including Firefox Browser Plugin

Post date: March 29, 2009, 05:03 Category: Installing Views: 7219 Comments
Tutorial quote: HowTo for installing the latest version of Sun's Java JRE on 32 and 64 bit Linux systems, and set it to run as the default JRE for all Java applications. The tutorial also includes installing the Java JRE Firefox Browser plugin. The tutorial is regularly updated to reflect the latest version of JRE.
Linux

Three tools to help you configure iptables

Post date: May 25, 2005, 14:05 Category: Network Views: 3571 Comments
Tutorial quote: Every user whose client connects to the Internet should configure his firewall immediately after installation. Some Linux distributions include firewall configuration as a part of installation, often offering a set of defaults configurations to choose from. However, to ensure that your machine presents the minimum "attack surface" (a measure of the number of vulnerable ports, user accounts, and sockets exposed to attack) to the predatory inhabitants of the Internet, you may need to do some manual configuration of your firewall. Here are three tools that can help.
The Linux kernel (version 2.4 onwards) contains a framework for packet filtering and firewalling using netfilter and iptables. Netfilter is a set of hooks inside the Linux kernel that allows kernel modules to register callback functions with the network stack. Iptables is a generic table structure for the definition of rulesets. Each rule within an IP table consists of a number of classifiers (iptables matches) and one connected action (iptables target). Iptables has extensive documentation that can be accessed online or by typing man iptables at the command line. Yet despite the depth of the documentation available for iptables, its complexity can be baffling.
SuSe

Setting up yum on SUSE LINUX 10.0

Post date: October 16, 2005, 16:10 Category: System Views: 6052 Comments
Tutorial quote: Why should I use yum and not yast? Well, yast is nice, but has some disadvantages: It can#t check for gpg keys, you have to trust the mirrors you add. And, speaking about mirrors, yast has no real mirror management for one source. Especially in these times the most and best known SUSE mirrors are very slow or just closed down, so you have to add other sources in yast. But yast needs your clicks when a mirror is not reachable, and if you enter several sources just as mirrors, it checks every single source - that takes quite a long time!
A last reason (which is not important know because SUSE LINUX has a ugly workaround) is that yast is not able to handle packages for different architectures - it can only install packages for one architecture.
Ubuntu

Installing Adobe AIR 1.1 For Linux Beta On Ubuntu 8.04

Post date: October 5, 2008, 16:10 Category: Desktop Views: 3388 Comments
Tutorial quote: Adobe AIR is a technology that lets you run Internet applications on the desktop. With AIR you do not need a browser to run such desktop applications. This tutorial explains how you can install Adobe AIR 1.1 for Linux beta on an Ubuntu 8.04 desktop and how you can install AIR applications.
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