What is Linux?

What is Linux? article1.html A brief history of Linux

Installation of Manpages-es article2.html How to get man-pages of the most important Linux system commands in Spanish.

Connecting to the Internet article3.html Here we have something lots of users face up to in their early stages of setting Linux up: Connecting to the Internet.

I got Linux Installed, What next? article4.html This article introduces new users to some of the issues that he/she will confront upon installation of Linux.

Some Tips article5.html Well...here are some notes, tricks, some of these are specific to non-english speaking users and therefore not frequently answered in the common documentation.

Making Shared Libraries article6.html How to compile and generate shared libraries.

PGP Under Linux article7.meta.html The author gives an introduction to PGP.

Managing Your Mail with procmail article8.html Keep you mail on folders, respond automatically, create mailing lists, learn how to do these and much more with procmail.

Linux in Hospitals article9.meta.html Linux means business, an example of using Linux in the health care environment.

Straight from the Horse's Mouth article10.html Bill Gates on customer support

Enabling Profile on the Alpha article11.html Tips for users of a DEC-Alpha

Setting Up a ZIP drive on an Alpha platform article12.html Tips for users of a DEC-Alpha

ECC2-79 cracked: Alpha Linux did it article13.html A short note about a group of Alpha Linux enthusiasts who cracked ECC2-79

Mail From Our Readers article14.html E-mail feedback after the first issue of Linuxfocus went out

What is OpenGL? article15.html This article is the first in a series about OpenGL, perhaps the most successful API for high-end 3D graphics

GLUT programming:Windows and Animations article16.html GLUT is the GL Utility Toolkit, developed by Mark Kilgard. In this article the author introduces GLUT, and gives us a primer on Windows and Animations handling with GLUT.

OpenGL Programming:Simple Polygon Rendering article17.html The author describes the first steps into any OpenGL application and tells us how to render simple polygons in 2D.

3Dfx graphics card article18.html 3Dfx Interactive's 3D chipset is changing the world of high-end graphics.

Kernel Secrets article19.html A short description of the Linux Kernel.

Debugging Code with ddd article20.html ddd is a wonderful graphical debugger.

Network Management and Monitoring with Linux article21.html Some handy tools for managing today's ubiquitous networks

Getting Linux to Run a Computer with an Alpha CPU article22.html The author share with us his experiences putting together an Alpha PC

Hardware Review: OpenGL & GLUT with Voodoo 3Dfx in Mind article23.html How to program OpenGL on a Voodoo 3Dfx graphic card.

Configuring X article24.html What are all those dotfiles for anyway?

Interview with Miguel de Icaza article25.html Miguel de Icaza gives us an interesting peek at a selected group of linux kernel developers. He is involved with the Linux/Sparc, Gnome project and RedHat's Lab.

Through the Window article26.html Some notes about window managers.

Interview with Linus Torvalds article27.html Linus Torvalds talks about the past and future of Linux and shares his opinions on current events

OpenGL Programming: More about Lines article28.html The Author describes more of the line rendering capabilities of OpenGL

GLUT Programming: Windows Management article29.html This article explains the usage of the GLUT windows management sub-API

POVRAY I: First Steps article30.meta.html This article begins a series about the Povray raytracer.

Lyx Review article31.html Lyx is an editor with fantastic possibilities. Ismael gives us a little overview.

Building, Installing and Configuring sendmail 8.8.x article32.html This is a copy of a Mini HOWTO on sendmail

Graphical Photo composition with Photoshop article33.html A comparison between Photoshop and Gimp

Graphical Photo composition with The Gimp article34.html A comparison between Photoshop and Gimp

MindsEye: 3D Modeling article35.html About 2 years ago, when linux was still very much a hackers operating system, the idea popped up to start work on a renderer/modeler/animation program for Linux.

Writing Text with Gimp article36.html The graphics corner continues to review and compare two good Image manipulation tools: Photoshop and Gimp. Our reviewers explore the creation of text banners.

Creating a (Somewhat Useful) Version of Linux article37.html Follow this article and learn how to create your own set of boot/root disks under Linux.

Introduction to SQL. (SQL Part I) and installation of PostgreSQL article38.html A SQL tutorial intended for novice database developers.

The X Display Manager article39.html The X Display Manager runs as a daemon on a host machine and manages multiple X displays.

StarOffice for Linux article40.html This article reviews the applications available in the suite StarOffice 4.0. The author gives us a demonstration using tool for the creation of presentations. (functionally similar to Microsoft's Power Point).

Microsoft Windows NT Server 4.0 versus UNIX article41.html The goal of this article is provide managers in corporations with the data and comparisons necessary to make well-informed decisions concerning the installation of servers for the corporate environment. All the information presented in this article summarizes the experience of a number of information systems professionals.

RenderMan article42.html Who has not heard of Pixar? Who has not seen "Toy Story"? Pixar developed RenderMan.

The Postscript Language article43.html This is the first one of a series of articles about PostScript.

Real-Time Linux article44.html Basic Concepts of Real-Time.

Introduction to DNS article45.html You may have wondered what happens behind the scenes in Netscape after you enter a URL. This article will help you to understand the name-lookup process.

OpenGL: the 3D Scene article46.html Explore the bolts and nuts of 3D rendering with OpenGL.

GLUT: using Menus article47.html Our GL Utility Toolkit series continues, examining the windows menu programming interface with a simple example.

POVRAY II: Basic Notions article48.meta.html This is the second article on a series about Povray. This time we review some general concepts and start describing the basic elements of the language.

Writing Text with PhotoShop article49.html The graphics corner continues to review and compare two good Image manipulation tools: Photoshop and Gimp. Our reviewers explore the creation of text banners.

Design of Recursive Structures. POVRAY III article50.meta.html The author explores the use of iterative structures within POVRAY and the beautiful images that they can generate.

Creating and Editing Animations with GIMP article51.html Simple techniques to create and edit animations using the Gimp

Enlightenment article52.meta.html Enlightenment is a highly customizable window manager for Linux. This article discusses the features, installation, and customization of the Enlightenment window manager.

Regular Expressions article53.html Regular expressions are advanced search patters. This Article gives an introduction.

Linux among artists at BUF COMPAGNIE article54.html BUF Company is a major synthetic image maker in the film business.

The StarOffice Suite article55.html This article looks at the word processor in StarOffice

Real-Time Linux II article56.html In this second issue devoted to RT-Linux I will try to offer a more practical view of RT-Linux.

Programming with Java. Part I article57.html This is the first article in a series about Java programming. The first part will describe Java as a language, its general characteristics and the location of the most relevant sources of information.

SQL Tutorial Part II article58.html Part II of the tutorial reviews several basic statements of the SQL language.

MySQL. A Database Server article59.meta.html MySQL is an SQL (Structured Query Language) database server supported by a number of platforms, including Linux. Its Linux version is design with fast performance in mind.

Adding Security to Common Linux Distributions article60.html How to modify a Linux distribution out of the box to get better security.

TCPD and Firewalls using IPFWADM article61.html This article describes very briefly how to configure the inetd services in order to improve security on your system. We concentrate in the of the tool IPFWADM to administer and configure inetd services

RenderMan: Basics on Camera Positioning article62.html Although the positioning is not as intuitive as Pov-Ray, it has an advantage when describing camera trajectories.

An Introduction to Network Booting and Etherboot article63.html An advanced article that explains how to bootstrap your computer from a program stored in non-volatile memory without accessing your hard disk.

Finding Files article64.html How to search for files by name or content.

Enabling Chinese on Linux article65.html This brief article describes how to enable Chinese locale on a "standard" Linux box.

Interview with Juan Jose Amor article66.html Juan Jose Amor Iglesias Current coordinator of the LuCAS project, part of the LDP and devoted to the translation and localization of MDL manuals in Spanish

Linux as an Educational Tool in Undergraduate Labs article67.html The author describes a first hand account of how Linux is changing the face of research labs in educational institutions in Turkey.

Basic UNIX commands article68.html Simple introduction to some of the basic UNIX tools

Interview with David Bagley article69.html David Bagley is the current maintainer of xlock, a popular X Window screen saver and locking utility.

GNU/Linux on Fujitsu 635T article70.html How to install Linux on a Fujitsu 635T laptop

Linux on a Sony Vaio 505gx article71.html How to install Linux on a Sony Vaio 505gx

Easy Graphics: A Beginner's Guide to SVGAlib article72.html SVGAlib is a simple graphics library that works without X11

An auto guided Vehicle Based on Linux article73.html This ariticle describes a Linux based robot as developed at the Universidad Politecnica de Valencia

Installation and Configuration of a Raid-system article74.html RAID (Redundant Array of Inexpensive Disks) consists of a series of systems to organize several disk drives into a single entity that behaves as a single virtual drive but making the various disks work in parallel thus improving the access performance and saving the information stored from accidental crashes.

Happy Hacking Keyboard article75.html Product review of the Happy Hacking Keyboard

PG2CGI Access to Databases from the Web article76.html We describe a new program that allows one accessing a database from HTML pages.

File Access Permissions article77.html This article is divided into two parts: The first part (Basic file access permissions) is a very short introduction to the basic file permission concept under Unix. The second part (T-bit, SUID and SGID) covers more advanced features of Linux that go beyond the basic "read-write-execute" flags.

Java. Part II article78.html The second part of a tutorial about java

Interview with Dennis Ritchie article79.meta.html Dennis Ritchie is the one who developed C and Unix.

PostScript Part II: The Operand Stack article80.meta.html The author describes the operand stack of the PostScript language. The stack manipulations and mathematical operators are presented here.

RenderMan Part III article81.meta.html This article discusses he possibility of modeling and animating a scene using C or C!+

f-CPU Project: Attempting the "even harder" article82.meta.html The fPU project attempts to develop a microprocessor like the present ones allowing a development scheme close to the one guiding important free software projects.

Japanese on Linux Part I article83.meta.html This article takes a brief overview at how to make your Linux system Japanese-capable.

PostScript III, Arrays, Variables, Loops and Macro Definitions article100.meta.html This is the continuation of two previous articles about postscript.

How to remove windows article101.meta.html This article describes how to remove Windows and give the disk space to Linux without re-installing it

Awk article103.meta.html Examples on how to use AWK

Funny shell commands article104.meta.html Some interesting answers form your Unix c-shell

Nerdbank - a banking initiative for open interfaces article105.meta.html Nerdbank is a project to develop an open and secure banking system for worldwide electronic money transactions.

How to use your CD-ROM under Linux article106.meta.html This article gives a short but useful description on how to use your CD-ROM under Linux.

POVRAY IV: The Use of Textures in Povray article108.shtml Here we build a study room with different items on the table. We build the scene by extensively using textures.

Dialog - a programming language for dialogs article109.meta.html Dialog is a programming language to program dialogs in games and computer simulations

The Tcl Syntax article110.meta.html This article explains basics concept and syntax of the Tcl language

Building text files with m4 macros article111.meta.html This article shows how to use m4 macros

Creating fire effects with The GIMP article112.meta.html In this article we show a procedure to create fire effects with The GIMP in five steps

Pseudo 3D with Gimp article113.shtml How to use Gimp for 3D graphics

Perl I article114.meta.html This is the start of a Perl tutorial

Freefont, True Type and Patterns with The Gimp article116.shtml This article shows how to use even more fonts and patterns with The Gimp.

Game Review - FreeCiv article117.meta.html FreeCiv is an open source clone of Sid Meier's popular Civilisation

Tux's secret obsession - Gaming under Linux article118.meta.html This is a short overview over the gaming scene under Linux.

Tools selection with Gimp and color correction article119.shtml This article explains how to use Gimp's powerful selection mechanisms.

Sketch, vectorial drawing under Linux article120.meta.html The advantages of a vectorial representation over bitmap is that files are smaller and the image can be enlarged significantly without differences in rendering (pixellisation). Sketch is written in Python, an object oriented interpreted programming language.

Gimp : Using layers and their masks article121.shtml Mask layers from Gimp are a really universal tool for all kind of tricks.

Apache : Part I article122.shtml This article is an introduction to the HTTP protocol it takes also a look at the history of the World Wide Web.

Discovering Ted article123.shtml Ted is a very nice and light weight word processor

How to use a Ramdisk for Linux article124.meta.html This article shows how to use RAM as a virtual harddisk.

Speeding up small databases on Linux article125.meta.html A Ramdisk can be used to make small PostgreSQL databases really fast.

Perl II article126.meta.html In the second part of the Perl tutorial we write our first real program.

FSViewer, a File Manager for WindowMaker article127.shtml Among the revolutionary tools of NeXTStep, the first in order of appearance on the screen was indisputably the File Viewer. Thanks to the path-view in that File Manager you always knew where you were. It was more than a manager, it was a true browser. FSViewer is a NeXTStep a like File Manager for WindowMaker.

WindowMaker the spirit of NextStep article128.shtml Window Maker 0.61.1 is the latest release of a NeXT look-alike window manager.

Recycling Ip Addresses with Apache article129.shtml This article demonstrates how to serve multiple virtual web servers using the same Ip address with Apache on Unix/Linux.

Sendmail and Fetchmail: A local mail server. article130.shtml Sendmail is a powerful but complex software. This article explains how to configure sendmail and fetchmail for use on a typical home computer.

GNU utilities article131.shtml The GNU utilities are a set of standard UNIX commands available with almost every UNIX system.

QCad: Technical drawing with Linux QCad is a 2D CAD system

VXE, a Linux security tool article133.shtml Serge Lozovsky presents a software package that he developed to make UNIX systems more secure.

Home Networking, glossary and overview article134.shtml This article explains hardware and networking terminology

How to partition your hard drive for Linux article135.shtml Thomas explains how he has chosen to partition his hard disk.

Perl part III article136.shtml This article explains how to use arrays in Perl.

Linux RT, part III article137.shtml In this article a simple electric circuit is used to process commands from any infra-red remote control.

NEdit, the universal editor in Unix world article138.shtml Nedit is a remarkable editor. Unfortunately it is not included in most Linux distributions and therefore not as well known as other editors.

XMRM: Multi Resolution Morphing article139.shtml XMRM (Multi Resolution Morphing for X) is a morphing program that allows one to create an mpeg video based on the the transformation from one image into another one.

Product review: SNiFF+ for Linux article140.shtml SNiFF+ is an integrated development environment for Linux. TakeFive Software provides a download version (limited to 200 files) free of charge.

Automount and autofs article141.shtml Automount and autofs are powerful tools and ease file systems management.

Booting three different operating systems: RedHat Linux 5.2, SCO Openserver 5.0.5 and Windows NT 4.0 article142.shtml Edgar explains how to setup one PC boot to boot 3 operating systems.

Multicast article144.shtml This article is an introduction to multicast technologies on TCP/IP networks.

The uCsimm kit article146.shtml This article describes the uCsimm kit and the UClinux project: Porting the linux kernel on hardware without MMU (memory management unit).

Using Apache ProxyPass to access servers behind a Masquerading article147.shtml This article demonstrates how to make a webserver behind a firewall available on the internet without changing rules on your firewall or compromising security.

Yellow Pages article148.shtml The Network Information Service (NIS) manages a data base on server. Each computer on a network running a NIS client NIS can then poll the server for informations (login name,password, users and groups informations, ...).

Arkeia, a professional and commercial network backup solution article149.shtml Arkeia 4.2.3-1 is the latest version of a commercial and professional network backup solution from Knox Software.

Building DHCP automatically article150.shtml This article explains how to configure easily DHCP on a network.

Setting up IP-Masquerading article151.shtml IP-Masquerading provides the possibility to connect several computers to the Internet using a computer running Linux with just one public IP address.

Making PDF documents with DocBook article152.shtml This article describes how you can use DocBook to develop PDF documents and covers tools you need to edit DocBook articles and tools to translate them to PDF documents.

Mastering the VI editor article153.shtml The VI editor is a screen-based editor used by many Unix users. The VI editor has powerful features to aid programmers, but many beginning users avoid using VI because the different features overwhelm them.

Slackware 7.0 part I: Installation Guide article154.shtml The author describes in detail the installation of the Slackware 7.0 Linux distribution. This article is written for beginners.

Virtual Network Computing article155.shtml The dream of the network administrator come true

An Introduction to Perl's XML::XSLT module article156.shtml This article demonstrates some of the capabilities of the W3C's XSLT standard and how it can be used to help you manage and publish XML documents to the web.

Slackware 7.0 part II: Configuration Guide article157.shtml After the installation in the first part, the author now describes some basic configuration tasks in his now favorite Linux distribution. He explains how to configure X, how to compile a kernel (and how to use it with lilo), how to do user account management, how to dial in to internet and how to give your system some basic security.

Magicpoint article158.shtml This article reviews the possibility of MagicPoint. This software is one of the very few that allow creation of presentations under X-Windows.

Using LDAP under Linux article159.shtml This article will talk about the benefits of deploying LDAP in an organization and how to implement it on Linux.

Developing Gnome Application with Python (Part 1) article160.shtml This series of articles is especially written for beginner in Gnome programming and GNU/Linux.

Installing Debian packages of LinuxFocus article161.shtml Article on how to install the Debian package of LinuxFocus.

Yellow Pages (Part II) article162.shtml My previous article was an introduction to the yellow pages and RPCs. This one explains how to configure a NIS client, how this client works and a small introduction to the different tools coming with NIS. Finally, we'll have a few words about NIS+

Yellow Pages (Part III) article163.shtml In this last article about NIS, we explain how to install a NIS server. We will see which programs are used, configuration files and the building of the database.

Network File System (NFS) article164.shtml Network File System (NFS) is a tool to manage files spread among several computers on a network as if they were on the same local machine. So, the final user does not have to worry of the exact location of its own files in order to access them.

Using Serial Line LCD displays under Linux article165.shtml This article show how to use the BLC2021 PC-Bay Insert serial line display from Matrix Orbital under Linux.

Bastille Linux article166.shtml Available by the beginning of june,version 1.1 of Bastille-Linux is not a new Linux Distribution but a set of security scripts. The authors have adopted a very pedagogic approach and one can learn a lot simply installing these scripts.

Book review: Professional PHP Programming article167.shtml This article,reviews the book Professional PHP Programming,a Programmer to programmer collection from WROX press.

Approaching Vector Linux article168.shtml Review of a mini linux distribution

REBOL the rebel article169.shtml Let's say REBOL is a messaging language, but as a matter of fact, it's much more than that.

Learning with nmap article170.shtml nmap is a security scanner

Reporting bugs on Debian 2.2 article171.shtml How that Debian 2.2 is released, a lot of people will upgrade to new newest Debian distro. Since Debian is extremely stable, why do you need a bug report tool? I do not know, but you cannot write software without bugs, so bugs will be found. This article explains how to submit them to the developers of the package.

Building Scalable ISPs with opensource softwares article173.shtml In my last article, I introduced you to using LDAP on Linux. In this article, we will build a scalable ISP that can scale from one to any number of backend machines. The backbone of setting up this ISP is LDAP.

An Introduction to Tk article174.shtml This articles explain how to build a graphical interface using the Toolkit of Tcl: Tk. The reader should also appreciate the simplicity of this toolkit compared to usual X-Windows libraries.

xinetd - extended Internet services daemon article175.shtml xinetd - extended Internet services daemon - provides an excellent security against the intrusions, and limit certain risks of attacks by Deny of Services ( DoS ). It allows, just like the most known pair ( inetd + tcpd ), to set access control to a computer, but its capacities extend well beyond. This article proposes you to discover them.

Once upon a time... or commercial Unix vs free Unix article176.shtml Why choosing between a commercial or a free Unix

Samba Configuration This article describes the configuration of Linux-samba, a server needed to control domains of networks based on MS-windows machines. Examples given here are based on Debian GNU/Linux and Samba 2.0.7

Real-time MP3 recording article178.shtml Recording music in mp3-format gives you the possibility to record very long pieces of music without exhausting the disk-space.

High Availability systems under Linux article179.shtml What is High Availability, why it is important and how to implement it using Linux.

Security tools article180.shtml Free tools to harden your systems

Make it anywhere with make! article181.shtml This article explains how "make" works. It shows that "make" is more than just a command to compile software.

Security Holes - part I article182.shtml This is the first article of a series of articles on security holes that can appear within a program. The series will show how to avoid security holes if programming habits are slightly corrected. We shall first discuss privileges, UID and EUID in this first article before dealing with the execution of external commands.

Security Holes - part II article183.shtml This second article is not directly related with the subject of the series. It reviews some concepts before describing the fear of all the system administrators:Buffer Overflows. We shall see how the memory is organized as well as the stack and how a function call is performed. Then we present a tool used for every intrusion attempt: shellcode.

A serial line shutdown button with control LED article186.shtml In this article we design a little push button to connect to your server on the serial line and which you can use to shut the machine down when needed.

BOOK REVIEW: HTML & XHTML, O'Reilly article187.shtml Review of the book HTML & XHTML published by O'Reilly

Game Review - Tux Racer article189.shtml Tux Racer is a fast pace arcade game. Our favorite Linux mascot has to slide down snow-covered hills,trying to catch as many herrings as possible and finish the courses in time.

Security holes article190.shtml This article explains how to exploit badly programmed software by using buffer overflows.

Security holes - part IV article191.shtml This fourth article deals with format strings security holes

Using different ISPs for your Internet access article192.shtml In this article we develop configuration files to easily change between a number of different Internet Service Providers. We extend the configuration not only to one PC but to a whole network using IP masquerading. A DNS proxy will be used to make the changing DNS IP addresses invisible inside the masqueraded network.

Game Review - Penguin Command article193.shtml "Missile Command" clone with better gfx and sounds

Game Review - GLtron article194.shtml 3D variant of those games, featuring the light-cycle race from the movie "Tron"

GNUstep, the open source OpenStep article195.shtml An object-oriented framework

Install a fax server the easy way article196.shtml This article explains how to install hylafax, a fax server, on a linux box

Book Review: Beginning Linux Programming article197.shtml This is the review of a "Linux programming bible" published by Wrox press.

Security holes - part V article198.shtml This fifth article is about race conditions :what they are, how to avoid them ...

Realtime data mirroring on Linux article199.shtml This article will explain on how to set an inexpensive real.time data replication system on Linux without need of special hardware. This kind of replication will be especially useful for ISPs or webhosts.

Introduction to BORG article200.shtml BORG is graphical user interface to BMRT, but it is not just a GUI it divides the rendering work across different computers where BMRT is used to render frames.

Editing DocBook XML Documents This article describes the use of Kate and its XML plugin as a tool for editing DocBook XML documents

Through the tunnel article202.shtml Using free SSH with external applications on different OSes

Security holes - Part VI article203.shtml Security of CGI scripts

Real-time mp3 recording, part II article204.shtml In the first part we showed how you can record in mp3 in realtime, for example a radio show, and make a big file out of it, e.g. 650MB for 24 hours of music in near-CD quality (128 kbit/s; stereo). Now, what to do with such a big file? Can we make even bigger files, or could we maybe get a better compression rate? How about the quality of these mp3 recordings?

Building a Linux-controlled walking robot article205.shtml In this article you learn how to build a small walking insect and control it with Linux over the parallel port.

Using XML and XSLT to build LinuxFocus.org(/Nederlands) article206.shtml This article shows you how parts of the Dutch website of LinuxFocus is generated with XSLT tools from the XML database. It compares this with the (very) much slower DOM tools in Perl.

Singing in the web... with Opera 5.0 for Linux article207.shtml Review of the new improved version of one of the lightest browsers

Bookreview: Professional Perl Programming article208.shtml This is a review of the book Professional Perl Programming from Wrox Press.

Compiling, Configuring and Installing a fully-working Customized Linux Kernel article209.shtml This article provides you with an extremely detailed and step-by-step process describing how to Compile, Configure and then Install a Customized Red Hat Linux Kernel.

Wacky uses for Raid, /dev/ram, and ramfs article210.shtml ramfs is a new file system in the 2.4 Kernel. It is very simple but could have some interesting applications.

Do magic with images on the shell article211.shtml This article explains how to automate image processing with the shell and ImageMagick

Analyzing your internet applications' logfiles article213.shtml This article is the first in a series about using Lire to analyze log files of internet server applications. This is not limited to one service, e.g. Apache, but is an integrated analyzer for many different services. Included are DNS, WWW, email and ipfilter services.

Psionic Portsentry 1.1, the defender of the ports article214.shtml Port scan detection and active defense

E-mail over UUCP: The professional solution for dialup users article215.shtml UUCP is an old protocol but it is very good to handle E-mail over dialup connections.

Shell Programming article216.shtml In this article we explain how to write little scripts.

Nessus : another brick in the (security) wall article217.shtml Nessus is more than a single security scanner

Analyzing your internet applications' log files II - configuring your reports article218.shtml The first article in this series introduced Lire. This article will show you how you can configure your reports for your need.

MosixView, a management-GUI for MOSIX-cluster article219.shtml This article describes a management GUI for the MOSIX-Cluster technologie (www.mosix.org)

Atek Super Mini Optical Mouse article220.shtml This is a miniature mouse that makes your notebook perform like a desktop

A whole new world: A guided tour with Tux through the land of the penguin article221.shtml Explore the land of the penguin with Tux as a guide on your side.

Running applications remotely with X11 X Window System is much more than just an environment to manage the windows of graphical applications.

How to use your ATEN UC-232A USB adapter with Linux article223.shtml The ATEN UC-232A is a RS232 serial line to USB adapter.

Developing Gnome Application with Python (Part 2) This article series is primarily written for beginners in the area Gnome and GNU/Linux. The author presents an educational tool to write Gnome GUIs using Python.

Chrooting all services in Linux Chrooted system services improve security by limiting damage that someone who broke into the system can possibly do

MySQL and Perl, the marriage of convenience Using MySQL in conjunction with Perl is an old story, but still a good one.

Writing CDs with Linux In this article we describe how you can write CDs under Linux.

Linux System Administration - A User's Guide (Book Review) This is a review of the book titled "Linux System Administration - A User's Guide" by Marcel Gagne. The book has 532 pages and 26 chapters that cover installation, daemons, run-levels,file systems, password policy, kernel building, printing, devices, backups, network administration, secure computing, and more.

GCC - the root of all This is an introduction to using gcc as a compiler.

IOS, another REBOLution Back to the future: IOS the internet operating system

Programming the ARV Microcontroller with GCC The article explains how to setup a GCC development environment for the AVR 8-bit risc Microcontroller series from Atmel.

Book review: The qmail Handbook This article is a brief review of "The Qmail Handbook" from Dave Sill.

Introduction to Ncurses Ncurses is a library that provides function-key mapping, screen painting functions and the ability to use multiple non-overlapping windows on text-based terminals.

Setting up a Squid-Proxy Server A proxy server can help to speed up an internet connection.

A LCD control panel for your Linux server In this article we use an Atmel AT90S4433 microcontroller and a few other inexpensive parts to build a LCD control panel for a Linux server.

Game Review - Barrel Patrol 3D Barrel Patrol 3D is a cute little 3d game, based on Ripoff, a classical arcade game from the early 80's.

Playing around with Dingbats and The Gimp This article shows how you can create nice logos and images from Dingbat fonts with just a few clicks.

Hardware watchdog and shutdown button This is a simple circuit to connect to the serial line of your computer.

Using the Minolta Dimage 5 camera under Linux This is a short description on how to setup the usb drivers for the Minolta Dimage 5/7 cameras under Linux

GNUMail.app, the portability evidence A NeXTmail clone able to run under GNUstep and MacOS X with the same source code

Getting to know XML This is a short introduction to XML. You will meet Eddy the meta cat, the XML syntax police, and some DTDs. Don't worry, we'll explain ;-)

Introduction to cryptography This article expains what cryptography is and how it works.

Discover the universe This article introduces 2 program for Linux to explore the universe.

How to secure an heterogeneous network with free tools Security in computers networks is probably one of the biggest technology challenges of the 21st century. This article provides a general overview over the most important aspects.

KDE 3 The new KDE3 is out. This article will give you an idea what it would be like to try it for yourself.

Replacing a Windows NT/2000 server using Linux and SAMBA This article is is focused on a Linux system with SAMBA in order to run some services, typically provided by Windows operating systems.

Plugins and Mozilla RC3 How I setup Mozilla RC3 for Real Player, Acrobat, Flash, and a generic plug-in Plugger.

Receiving faxes with efax Setting up Efax to send and receive faxes on RedHat 7.2.

Book Review: Beginning Databases with MySQL A brief review about this great book about MySQL.

A Microcontroller based DC power supply In this article we build a very robust Microcontroller regulated power supply for your "lab" at home.

Compile your own Linux kernel This a really comprehensive article that teaches you how to download , configure, compile and install your own kernel.

Frequency counter 1Hz-100Mhz with LCD display and RS232 interface This article describes how to design a frequency counter with the AT90S4433 Microcontroller and Linux.

Light, Camera, Action... Kino! Connect your digital video camera via firewire to Linux and start cutting.

Sound processing of streamed acquisitions This article shows how to acquire sound data from internet streams and to process this sound data and to convert it to ogg vorbis encoded format.

Understanding HD44780 compatible LCD-displays This article how the interface of a HD44780 compatible LCD-displays works at bits and byte level.

Midi with alsa This article explains how to use your computer as a midi synthesizer.

FreeBSD, another alternative This article is an overview over another free Unix system: FreeBSD

L'heure du Jazz++ Jazz is a midi sequencer with many interesting features for editing and composing your own music!

Using BibTeXML in DocBook XML to Write Scientific Articles BibTex is an system which enables you to insert references from a (file) database into Tex documents. In this article I will show you how you can use a BibTex like reference system with DocBook XML.

Viruses : a concern for all of us Viruses, Worms and Trojan Horses could also be a threat to Linux.

Mozilla dissected In this article we dissect the huge lizard - in particular we investigate the browser part. It's actually a review of Mozilla 1.1 with two add-ons: 'Mouse Gestures' and 'RadialContext'.

Root-kit and integrity This article presents the different operations a cracker can do after having succeeded in entering a machine. We will also discuss what an administrator can do to detect that the machine has been jeopardized.

Fail Safe Port Allocation for Linux Device Drivers Writing a device driver is a challenging and an adventurous job. Once the device is registered in the driver's init_module routine, the resources for the device should be allocated. One of the main resources for the device is I/O port. The dynamically linked drivers, the developer should be careful to allocate unused range of port addresses for their device.

Gorm and ProjectCenter, the GNUstep RAD tools Gorm and ProjectCenter are the Gnu Rapid Application Development tools for GNUstep

Developing Gnome Application with Python (Part 3) RAD stands for Rapid Application Development.

(X)dialog: Talking shells Xdialog and dialog a two classic utilities to enhance you shell scripts with a graphical user interface.

Using PGPLOT for interactive graphics under Linux In this article you will learn how to build an interactive graphics program written in Fortran.

Managing HTML with Perl, HTML::TagReader HTML::TagReader is a light weight Perl module to process a file Tag by Tag.

Installation of a LAMP-Systems LAMP is an abbreviation for Linux Apache MySQL PHP. In this article you will learn how to install a Webserver based on LAMP.

Basic accoustics and signal processing for musicians Everything about sound. The physics, wave forms, the human ear.... What is digital sound...?

Concurrent programming - Principles and introduction to processes This series of articles has the purpose of introducing the reader to the concept of multitasking and to its implementation in the Linux operating system.

Secure your connections with SSH This article is an in depth description of SSH.

Intrusion detection with Debian GNU/Linux The article presents techniques and the tools for Debian GNU/Linux to detect and track people wo broke into your computer network.

Demography hands on This article presents a simulation program to answer the question "How will the population look in 50 or 100 years from now?"

Free Unix : the BSD one(s) This aricle takes a look at the species "BSD UNIX".

Basic Programming with Unix Review of Basic interpreters, IDEs for Basic, and and other things to build Basic programms under Linux.

Automating system administration with ssh and scp This article demonstrates the usage of ssh and scp commands to automate system administration jobs, such as installing and configuring software on Linux systems.

Fighting against Spam Spam between the mail!? Spam E-mail is growing at an alarming rate and it is a major problem for almost everybody.In this article we will explain ho w to handle unwanted commercial email.

Bookreview: Beginning PHP4 Databases This is a book from Wrox-press on PHP4

Concurrent programming - Communications between processes This is the second article in the series on concurrent programming.

External attacks This article presents the different types of external attacks that a cracker can use.

Interview with Jeff Dike Jeff Dike is the creator and maintainer of User Mode Linux, a very interesting new feature of the 2.6 Linux kernel. This article will give some insight into UML and the people behind it.

Measuring air pressure with Linux This article describes an inexpensive solution to messure air pressure with a Linux PC.

Accessing PostgreSQL through JDBC via a Java SSL tunnel This article shows how to set up JDBC access for PostgreSQL on redhat 8.0 and how to create a SSL tunnel using Sun's Java Secured Socket Extensions, to enable secured access to a remote postgres database.

Linux USB LCD display with watchdog and buttons This article explains how to modify the LCD display prestented in May2002 to work with the USB interface. The design is based on a chip from www.ftdichip.com

Concurrent programming - Message queues (1) The third article on concurrent programming and UNIX inter process communication.

Implementing a scroller in SDL graphics SDL is the simple direct media layer often used to implement fast and portable graphics.

Packet filtering with Linux How to setup a basic firewall

Ximian Evolution installation guide Ximian Evolution is able to read ans send mail from a Linux workstation via an Exchange server 5. In this article, I'll give you some info about my personal experiance and my own configuration.

GWorkspace, the GNUstep Workspace Manager The concept of Workspace Manager appeared with NeXT at the end of the 80's. It was a complete new way of using a system GUI. GWorkspace is the GNUstep free implementation of this revolution.

IDS - Intrusion Detection System, part I

Case Study: Open Source Content Management Systems Make E-commerce Websites Affordable It's one thing to formulate a great idea for a Website that's informative, entertaining, and commercially viable. It's quite another turning a passion into a robust e-commerce Website.

IDS - Intrusion Detection System, part II In this article we present methods to detect an intrusion and explain possibilities to respond to such and attack.

GUI Programming with GTK In this article we will learn how to write graphical user interfaces (GUI) using GTK.

Concurrent programming - Message queues (2) This series of articles has the purpose of introducing the reader to the concept of multitasking and to its implementation in the Linux operating system. Starting from the theorical concepts at the base of multitasking we will end up writing a complete application demonstrating the communication between processes, with a simple but efficient communication protocol.

Building an autonomous light finder robot In this article we describe how to build an autonomous robot that will always try to walk to the brightest spot in the room.

8cm-Multiboot-CDROM with modified Knoppix linux This is an instruction how to make your own bootable mini CD.

A GNUstep small apps tour This is a very short review of some of the smaller but very useful tools from GNUstep.

A 1 Bit Data Scope This article describes a 1bit logic analyser which samples data and sends it to a Linux PC via the rs232 port.

Product Review: Textmaker Textmaker is one of the new commercial word processors for Linux.

Book review: Mastering Red Hat Linux 9 This is a review of the book Mastering Red Hat Linux 9. by Jang, Michael, Sybex.

GUI Programming with GTK - part 2 In this second part of the GTK series we will discuss boxes and tables.

The MySQL C API In this article, you will learn how to use the C APIs (Application Programming Interfaces) that come with MySQL.

Going 3D with Blender: Very first Steps Blender is an open source 3D graphics program. In this first article in a series about Blender we look at the very basics and build a stage with sphere and cube on it.

Linux on the desktop: A computer for Mom My Mom belongs to a generation which grew up without computers. This article is probably valid for most people who first started to use a computer beyond the age of 60.

Going 3D with Blender: A toy train In this second article in our series about modeling with Blender we create a little toy train.

Automail for fli4l How to fetch e-mail with a dial-on-demand one diskette router from www.fli4l.de.

Writing man-pages This article explains how to write your own man-pages.

A short guide to the installation of CVW under Linux Collaborative Virtual Workspaces is one of the finest open source tools available for the development of virtual education.

Photo magic with Gimp In this article we give you some basic ideas how to improve on your digital photos with The Gimp.

Collaborative Virtual Workspaces and their advantages Some background information about a new virtual learing project at the Universidad Santiago de Cali.

Book review: The Art of UNIX Programming Review of the book "The Art of UNIX Programming" by Eric S. Raymond.

GIMP: Make your own brushes This article explains the various brush types that Gimp has and shows how to create own brushes.

Temperature monitoring with Linux This article shows how you can add for about 10 Eur a termperature supervision to your server.

Concurrent programming - Message queues (3) This is the last article in the series about concurrent programming.

An ISDN - Fax with Linux This article describes how to use your linux box as an ISDN fax machine.

Going 3D with Blender: A room with toys In this third part of our series about Blender we set our train in a kid's room and model some more toys.

RPN calculators for Linux Reverse Polish Notation is the most advanced entry method for calculators. This article will review some of the available RPN desktop calculators for Linux.

Tracking Linux Internals with Syscalltracker Syscalltracker offers a mechanism to watch Linux at kernel level.

storeBackup, the unconventional backup tool storeBackup is a very versatile backup tool.

Let's do some electronics Software to develop electronic circuits? Yes, it's available for Linux too. This article will show you what you need.

Test: pre-installed Linux Notebooks This is a review of notebooks from linuxcertified.com

Understanding the Proc File System The proc filesystem is a virtual filesystem which provides a lot of infromation about hardware and kernel internal data structures.

Going 3D with Blender: Modeling a chest In this article we model a treasure chest with Blender.

Rsync: The Best Backup System Ever Backup is one of the hardest and most neglected parts of system administration. This article presents a very easy solution based on rsync.

Book review: The Art of UNIX Programming (II), Complexity Art of Unix Programming second article, Complexity.

Linux for S/390 (IBM z-Series) S/390 is a robust hardware platform from IBM for large enterprices. Linux runs on it.

Gambas: Basic for Linux Gambas is a Basic interpreter for Linux with GUI support.

uucpssh.org: UUCP e-mail for Linux fans In the windows world incomming mails are received via POP3 or IMAP and outgoing mails are sent directly via SMTP. This split setup can cause all kind of headaches especially if you are using different ISPs all the time.

Introduction to the TclMySQL library MySQLTcl is a Tcl library to do SQL queries.

GUI Programming with GTK - 3 In these article series, we will learn how to write graphical user interfaces (GUIs) using GTK.

Tuxpaint: A paint program for kids Tuxpaint is a paint program (not only) for children and it is great fun!

Statistics Anyone? Most statistics packages seem to be overwhelming in their scope, forcing the user on a very steep learning path, most of them are also very expensive. There is however a refreshing alternative: SalStat

Colorful shells -- Using ANSI color codes This article explains how to use colors or bold text in a Terminal.

Gentoo linux Gentoo Linux is a source package based Linux system. It is very different from the established commercial Linux distributions.

shivalik -- simple configuration backup (defying Murphy's laws) There are a whole lot of HOWTOs out there which tell you what to do if you have a serious problem with your Linux installation. Good for us. But there is no one there who told you what you should do before disaster strikes you!

Talking to a Running Process Run Time Access is a library that lets you view the data structures in your program as tables in a PosgreSQL database or as files in a virtural file system (similar to /proc).

Going 3D with Blender: Modeling a clock In this article we model a clock with Blender.

Data loss, worst case A real-life case of data loss with a happy end, thanks to reiserfsck. Three cheers for journaling file systems and their tools.

vsftpd - an introduction to the Very Secure FTP Daemon This article gives a basic introduction to the "Very Secure FTP Daemon". I am beginning with a general description of FTP and vsftpd. After that we will have a look at the installation, configuration and start options of the vsftp daemon.

Temperature monitoring with Linux (part 2) In the second part of "Temperature Monitoring With Linux" we see how to store the data in mysql and represent it graphically.

Why does this not work!? How to find and fix faults in Linux applications. Everybody claims that it is easy to find and fix faults in programs written under Linux. Unfortunately it is very hard to find documents explaining how to do that.

Dia, a diagram creation program In this article we take a look at dia, a gnome based diagram creation program.

Linux in science -- or how a useful neural network utility was developed This article shows how useful Linux-based software in science is.

darkstat - a network traffic analyser In this article we present the network traffic analyzer "darkstat". We cover installation, start and usage of this program.

Simple Animation Creating a simple animation is fun and easy, for children and adults alike.

Creating panoramic views using Hugin, Enblend and The Gimp In this article we show you how to create a panoramic picture using Hugin, Enblend and The Gimp.

The mystery of mount points This article explains the concept of mount points but I hope the article has also some information which is interesting to readers who are not new to linux.

Platform independent software development This article reviews different possibilities to build platform independent graphical user interfaces.

LF Tip: Changing the keyboard layout on the fly Linuxfocus tip for October 2004

Programming the AVR Microcontroller with GCC, libc 1.0.4 How to program the Atmel AVR Microcontroller with GCC. An update of the March 2002 article for libc 1.0.4

LF Tip: switching off font anti-aliasing Linuxfocus tip for November 2004

An introduction to SPF SPF stands for Sender Policy Framework an antiforgery standard to prevent the forging of e-mail addresses.

Using gEDA gEDA is a tool-chain for electronic circuit design.

Get To know a free pascal compiler: Free Pascal Free Pascal is on the rise with a combination of text mode programming and OOP as powerful as RAD Delphi.

LF tip: Customize motd & isse LinuxFocus tip number 2 for November 2004

LF Tip: emacs keybindings to edit the url in firefox LinuxFocus tip December 2004

Fn-F12: Hibernate a IBM Thinkpad T20 laptop How to get hibernate (suspend-to-disk) to work on an IBM Thinkpad T20 with no windows installed

Checkinstall Checkinstall is utility to automatically build RPM/Debian/Slackware packages from tar.gz source pages. This makes it possible to do a "clean" installation and de-installation of almost any source code tar.gz package.

Wireless LAN under Linux In this article, the author talks about driver installation and usage of some common Wireless LAN adapters and related issues such as authentication based on 802.1x methods.

LF Tip: LinuxFocus Live Bookmarks LinuxFocus tip January 2005

ParallelKnoppix A Knoppix based Live CD that provides a Linux Cluster ready for MPI and other Parallel Computing in less than 15 minutes!

Checking gpg mail signatures with Sylpheed-Claws How to install a gpg plugin and check a mail signature within Sylpheed-Claws using some bash pipes commands.

A digital thermometer or talk I2C to your atmel microcontroller In this article we see how to interconnect the microcontroller to a linux PC over a physical RS232 interface without the extra MAX232 chip.

LF Tip: generating PDF from html documents Generating PDF files from html documents with all the pictures included is not easy. Here are a few tips how to do it.

Writing your own netfilter match The iptables/netfilter framework gives us the possibility to add features. To do so, we write kernel modules that registers against this framework.

Professional Tex(t)Authoring with LyX This article is written for people who have a lot of text editing/authoring to do and are primarily interested in getting the text edited fast, reliable with a plesant looking printout.

Part 2 -- A digital thermometer or talk I2C to your atmel microcontroller In this second part of the article we will connect a LCD display and I will explain how the software works.

LF Tip:Cloning entire PCs over the network This article explains how to clone partitions with dump and restore.

Optimizing C/C++ programs using the GProf profiler One of the most important things to keep in mind while optimizing an application is: optimize the code where it counts.

Bayonne: the opensource project for phone and IVR services GNU Bayonne is a scalable telephony application server.

LF Tip: solving the ugly key problem Good looking alternatives to the Windows key.

LINUX & PERL, computer tools for study and analysis of biological information This article shows how easy it is to extract biological information from DNA, RNA and proteine sequences Databases using small perl scripts.

lcdproc -- LCD displays easy to use and easy to build In this article we use lcdproc to connect a LCD display and 2 buttons to a linux pc; simple and easy to build for everybody.

LF Tip: essential firefox extensions Two really cool firefox extensions.

Cruising with the snavigator This article presents the snavigator, a powerful code analysis, cross-referencing and re-engineering tool.

LF Tip: Don't beep at me How to quickly stop your linux computer from beeping.

A digital DC power supply A very small an really powerful DC power supply for your hobby lab. It has lots of features which you normally find only in very expensive power supplies. This one is however cheap, small and easy to build.

LF tip: Using Acrobat 7 with kde and kprinter How to work around a bug in acroread version 7

Faulty Software Controversial discussions have started around estimates about the number of faults which a given software has. Often the fault-density is used as a measure for the quality of software. Is that correct?

A toolchain for transformation from paper to HTML Here is one toolchain to convert and old paper magazine into html document.

LF Tip: USB mice and laptops How to get a USB mouse to work without restarting the X-server process.

A digital DC power supply -- part 2: the software very small an really powerful DC power supply for your hobby lab. In this second part I explain how the software works and one more feature is added.

Book review: The Linux Enterprise Cluster A review of the book "The Linux Enterprise Cluster" from No Starch press.

LF Tip: #defines for writing portable C-code How to get a list of available defines.

Automate the creation of graphs with Graphviz Graphviz is a command-line open source graph visualization software.

Computer Assisted Simulation of DNA using Linux and Perl In this article we discuss a way to generate n-DNA sequences with s-nucleotids using Perl programmes.

A digital DC power supply -- part 3: command control from the PC A very small an really powerful DC power supply for your hobby lab. In this third part. We make it possible to remotly control the DC power supply via a command line interface.