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Vimdiff starts Vim on two (or three) files. Each file gets its own window. The differences between the files are highlighted.This is a nice way to inspect changes and to move changes from one version to another version of the same file.

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PulseAudio (formerly PolypAudio) is a cross-platform, networked sound server project. It is intended to be an improved drop-in replacement for the Enlightened Sound Daemon (ESD).By default Ubuntu 8.10 comes with Pulse Audio and most users start complaining about pulse audio so if you don’t want to use Pulse Audio you can remove.

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Ubuntu 9.0 is the upcoming version of the Ubuntu operating system. The common name given to this release from the time of its early development was “Jaunty Jackalope”.This tutorial will explain how to upgrade ubuntu 8.10 to ubuntu 9.04 beta.

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The Ubuntu developers are moving quickly to bring you the latest and greatest software the Open Source Community has to offer. This is the Ubuntu 9.04 beta release, which brings a host of excellent new features.

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The Advanced Packaging Tool, which has since been ported by Conectiva for use with rpm and has been adopted by some other distributions.The apt-get command is a powerful command-line tool used to work with Ubuntu’s Advanced Packaging Tool (APT) performing such functions as installation of new software packages, upgrade of existing software packages, updating of the package list index, and even upgrading the entire Ubuntu system.

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If you have just upgraded to or installed Hardy or Intrepid or Jaunty and you have some sound somewhere, but not everywhere for everything, this is a fast way to get all the missing stuff you need and give you some tools to figure out what is going on. If you hear the startup sound but nothing else, or if some applications work and others don’t, this is for you. If you have no sound at all, there is a link at the end of this post for more extensive troubleshooting help but you should try this first anyway as it may solve your problem and will not make matters worse.Make sure that your system is fully updated.

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).

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eCryptfs is a POSIX-compliant enterprise-class stacked cryptographic filesystem for Linux.It provides advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the
file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. Think of eCryptfs as a sort of “gnupgfs”.eCryptfs is a native Linux filesystem. The kernel module
component of eCryptfs is part of the Linux kernel since 2.6.19.

Have you ever needed to wirelessly network a Windows PC’s 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.Ubuntu’s NetworkManager
0.7.0 contains the necessary features for creating an Ubuntu adhoc network host.

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This program converts line endings of text files between MS-DOS and **IX formats. It detects binary files in a nearly foolproof way and leaves them alone unless you override this. It will also leave files alone that are already in the right format and preserves file timestamps.User interrupts are handled gracefully and no garbage or corrupted files left behind. ‘flip’ does not convert files to a different character set, and it can not handle Apple Macintosh line endings (CR only). For that (and more), you can use the ‘recode’ program (package ‘recode’).

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Apt-Cacher-ng is a software package that keeps a cache, on the disk, of Debian/Ubuntu Packages and Release files.When an apt-get like client issues a request for a file, Apt-Cacher intercepts it and if the file is already cached it serves it to the client immediately, otherwise it fetches the file from the Internet, saves it on the cache, and then serves it to the client. This means that several Debian machines can be upgraded but each package need to be downloaded only once.

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Nginx (pronounced “engine x”) is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server. Written by Igor Sysoev in 2005, Nginx now hosts between 1% and 4% of all domains worldwide .Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption.

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SSHerminator is a terminal emulator based on Terminator, with extra SSH features.The aim of this project is not to provide a standard, general use Terminal emulator, but an emulator that provides as rich an experience as possible while using SSH (that can also be used as a standard terminal).SSHerminator is a semi-fork of Terminator. We sync up with the Terminator code as often as possible, to get the best Terminator features, but include our SSH hacks.

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mod_slotlimit is an Apache module that using dynamic slot allocation algorithm and static rules, can manage resources used for each running site.

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BleachBit deletes unnecessary files to free valuable disk space, maintain privacy, and remove junk. Rid your system of old clutter including cache, temporary files, cookies, and broken shortcuts. Designed for Linux systems, it wipes clean Bash, Beagle, Epiphany, Firefox, Flash, Java, KDE, OpenOffice.org, Opera, RealPlayer, rpmbuild, VIM, XChat, and more.

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GLPI stands for “Gestionnaire libre de parc informatique”, GLPI is the Information Resource Manager with an additional Administration- Interface. You can use it to build up a database with an inventory for your company (computer, software, printers…). It has enhanced functions to make the daily life for the administrators easier, like a job tracking system with mail-notification and methods to build a database with basic information about your network-topology.

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Fglrx is a proprietary, Linux binary-only driver for ATI graphic chips with support for 3D acceleration..This tutorial will explain How to install ATI fglrx driver in debian

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eCryptfs is a POSIX-compliant enterprise-class stacked cryptographic filesystem for Linux.It provides advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. Think of eCryptfs as a sort of “gnupgfs”.eCryptfs is a native Linux filesystem. The kernel module component of eCryptfs is part of the Linux kernel since 2.6.19.

Debian Lenny’s release is getting closer and closer and many people will want to upgrade their Debian Etch servers to Lenny.This is currently in testing so it is not recommended to use these instruction in production.This tutorial will explain how to upgrade from Debian Etch (4.0 ) to Lenny (5.0)

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Deleting a file or reformatting a disk does not destroy your sensitive data. The data can easily be undeleted. That’s a good thing if you accidentally throw something away, but what if your trying to destroy financial data, bank account passwords, or classified company information. In this article you will learn number of tools(Shred,Wipe,srm,smem,sfill,sswap,DBAN) to delete files securely in GNU/ Linux

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In this tutorial we will see how to install Adobe Flash in Debian Etch/Lenny/Sid. Adobe Flash (previously called "Macromedia Flash"') is a multimedia platform created by Macromedia and currently developed and distributed by Adobe Systems. Since its introduction in 1996, Flash has become a popular method for adding animation and interactivity to web pages; Flash is commonly used to create animation, advertisements, and various web page components, to integrate video into web pages, and
more recently, to develop rich Internet applications.

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If you want to ssh your vps server or your home computer from your work place (assuming you are using http proxy).You need to use Corkscrew.corkscrew is a simple tool to tunnel TCP connections through an HTTP proxy supporting the CONNECT method. It reads stdin and writes to stdout during the connection, just like netcat.

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pv (Pipe Viewer) can be inserted into any normal pipeline between two processes to give a visual indication of how quickly data is passing through, how long it has taken, how near to completion it is, and an estimate of how long it will be until completion.To use it, insert it in a pipeline between two processes, with the appropriate options.

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A DHCP Server assigns IP addresses to client computers. This is very often used in enterprise networks to reduce configuration efforts. All IP addresses of all computers are stored in a database that resides on a server machine.A DHCP server can provide configuration settings using two methods

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Wine makes it possible to run Windows programs alongside any Unix-like operating system,particularly Linux. At its heart, Wine is an implementation of the Windows Application Programing Interface (API) library, acting as a bridge between the Windows program and Linux.
Think of Wine as a compatibility layer, when a Windows program tries to perform a function that Linux doesn’t normally understand, Wine will translate that program’s instruction into one supported by the system. For example, if a program asks the system to create a Windows pushbutton or text-edit field, Wine will convert that instruction into its Linux equivalent in the form of a command to the window manager using the standard X11 protocol.