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Article index by author

This is an index of all LinuxFocus articles sorted by authorname.

Aleksandar Milovac [1]

• 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.

Alessandro Pellizzari [1]

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

  
  

Alexander Langer [1]

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

  
  

André Pascual [5]

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

• Discovering Ted
  Ted is a very nice and light weight word processor

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

• Pseudo 3D with Gimp
  How to use Gimp for 3D graphics

• Creating fire effects with The GIMP
  In this article we show a procedure to create fire effects with The GIMP in five steps

  
  

Andreas J Gundacker [1]

• Introduction to DNS
  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.

Angel Lopez [3]

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

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

• PGP Under Linux
  The author gives an introduction to PGP.

Antonio Castro [4]

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

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

  
  
• POVRAY II: Basic Notions
  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.

• POVRAY I: First Steps
  This article begins a series about the Povray raytracer.

Arnout Engelen [1]

• 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.

Atif Ghaffar [6]

• Realtime data mirroring on Linux
  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.

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

• Building Scalable ISPs with opensource softwares
  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.

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

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

  
  

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

  
  

Baybora Baran and Seckin Gokaltun [1]

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

Ben Y. Yoshino [1]

• Mastering the VI editor
  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.

  
  

Bernard Perrot [1]

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

Bob Smith [2]

• 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).

• 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.

Brent B. Welch [1]

• The Tcl Syntax
  This article explains basics concept and syntax of the Tcl language

  
  

Brian Hone [1]

• 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.

Bruce Ediger [1]

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

Bruno Sousa [3]

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

  
  

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

  
  

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

  
  

Carlos Andrés Pérez [3]

• 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.

• 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.

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

Carlos Calzada Grau [3]

• RenderMan Part III
  This article discusses he possibility of modeling and animating a scene using C or C!+

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

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

Charles Vidal [5]

• An Introduction to Tk
  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.

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

  
  

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

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

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

  
  

Chianglin Ng [1]

• 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.

Chris Dibona [1]

• Linux on a Sony Vaio 505gx
  How to install Linux on a Sony Vaio 505gx

Christian Van Caillie [1]

• 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.

Christophe Blaess [1]

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

  
  

Cüneyt Göksu [1]

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

D.S. Oberoi [1]

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

  
  

Danilo Lujambo [1]

• Learning with nmap
  nmap is a security scanner

David Guerrero [1]

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

Detlef Müller [1]

• 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.

Diego Alberto Arias Prad [1]

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

Dr. B. Thangaraju [1]

• 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.

  
  

Edgar Hernández Zúñiga [2]

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

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

  
  

Egon Willighagen [10]

• 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.

  
  

• 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.

  
  

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

  
  

• Analyzing your internet applications' logfiles
  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.

  
  

• Using XML and XSLT to build LinuxFocus.org(/Nederlands)
  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.

  
  

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

  
  

• Reporting bugs on Debian 2.2
  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.

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

• An Introduction to Perl's XML::XSLT module
  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.

• Making PDF documents with DocBook
  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.

  
  

Emiliano Ariel Lesende [1]

• Kernel Secrets
  A short description of the Linux Kernel.

Emre Demiralp [4]

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

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

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

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

Erdal Mutlu [1]

• 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.

  
  

Erdal Mutlu and Ceyhun Elmas [1]

• Introduction to BORG
  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.

Eric Detoisien [1]

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

Eric Seigne [2]

• 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

  
  

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

  
  

Floris Lambrechts [3]

• 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.

• 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'.

• 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 ;-)

  
  

Frédéric Navarro [1]

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

  
  

Frédéric Raynal [14]

• 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.

  
  
• Security holes - Part VI
  Security of CGI scripts

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

• Security holes - part IV
  This fourth article deals with format strings security holes

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

• Security Holes - part II
  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.

• Security Holes - part I
  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.

• xinetd - extended Internet services daemon
  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.

• Bastille Linux
  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.

  
  
• Network File System (NFS)
  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.

• Yellow Pages (Part III)
  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.

• Yellow Pages (Part II)
  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
  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, ...).

• Automount and autofs
  Automount and autofs are powerful tools and ease file systems management.

Geoffrey W. Corey [1]

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

  
  

Georges Tarbouriech [22]

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

• 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.

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

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

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

  
  

• 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.

  
  

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

  
  

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

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

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

• Psionic Portsentry 1.1, the defender of the ports
  Port scan detection and active defense

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

• Through the tunnel
  Using free SSH with external applications on different OSes

  
  

• GNUstep, the open source OpenStep
  An object-oriented framework

  
  
• Security tools
  Free tools to harden your systems

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

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

  
  
• Virtual Network Computing
  The dream of the network administrator come true

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

  
  

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

  
  

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

  
  

• FSViewer, a File Manager for WindowMaker
  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.

  
  

Gerrit Renker [4]

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

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

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

• 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.

Guido Socher [50]

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

• 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.

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

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

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

• 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: 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.

• 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: LinuxFocus Live Bookmarks
  LinuxFocus tip January 2005

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

• LF Tip: switching off font anti-aliasing
  Linuxfocus tip for November 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: Changing the keyboard layout on the fly
  Linuxfocus tip for October 2004

  
  

• 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.

  
  
• 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.

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

• 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.

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

• 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.

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

  
  
• 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.

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

• 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

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

  
  

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

  
  

• 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.

  
  

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

  
  

• 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

  
  

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

  
  

• 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.

  
  

• 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.

  
  

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

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

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

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

• Using different ISPs for your Internet access
  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.

• A serial line shutdown button with control LED
  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.

  
  

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

  
  

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

  
  

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

  
  

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

  
  

• Home Networking, glossary and overview
  This article explains hardware and networking terminology

  
  

• Perl II
  In the second part of the Perl tutorial we write our first real program.

  
  

• Perl I
  This is the start of a Perl tutorial

  
  
• File Access Permissions
  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.

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

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

  
  

Hack Linux [1]

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

Harald Radke [6]

• 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.

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

• Game Review - Penguin Command
  "Missile Command" clone with better gfx and sounds

• Game Review - Tux Racer
  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.

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

  
  

• Game Review - FreeCiv
  FreeCiv is an open source clone of Sid Meier's popular Civilisation

  
  

Heinz-Josef Claes [1]

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

  
  

Hilaire Fernandes [3]

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

  
  
• 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.

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

Holger Blasum [1]

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

  
  

Ingo Hoffmann [1]

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

Ismael Ripoll [6]

• Interview with Juan Jose Amor
  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

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

  
  

• The StarOffice Suite
  This article looks at the word processor in StarOffice

  
  
• Real-Time Linux
  Basic Concepts of Real-Time.

• StarOffice for Linux
  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).

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

Ismael Rpoll and Elisa Acosta [1]

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

  
  

Iznogood [3]

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

• 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.

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

Jan Alonzo [1]

• 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

Jan Svenungson [1]

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

  
  

Javi Polo [1]

• TCPD and Firewalls using IPFWADM
  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

  
  

Javier Palacios Bermejo [1]

• Awk
  Examples on how to use AWK

  
  

Jay Link [1]

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

Jean-Etienne Poirrier [1]

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

Jeffry Degrande [2]

• Slackware 7.0 part II: Configuration Guide
  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.

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

  
  

Joel McCarty [2]

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

• Configuring X
  What are all those dotfiles for anyway?

John E. Gotts [1]

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

John Kirch [1]

• Microsoft Windows NT Server 4.0 versus UNIX
  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.

John Perr [5]

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

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

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

  
  

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

  
  

• Building text files with m4 macros
  This article shows how to use m4 macros

  
  

Jonas Alvarez [1]

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

Jose M. Fernandez [3]

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

• MySQL. A Database Server
  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.

  
  

• Programming with Java. Part I
  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.

  
  

Jose Maria Laveda [3]

• Through the Window
  Some notes about window managers.

• Debugging Code with ddd
  ddd is a wonderful graphical debugger.

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

Josef Schwarz [1]

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

José Salvador González Rivera [1]

• 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.

Juan Manuel Sepúlveda [2]

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

• Graphical Photo composition with Photoshop
  A comparison between Photoshop and Gimp

Juan Manuel Triana,Carlos Andres Perez [1]

• 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.

Jürgen Pohl [1]

• 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

Katja Socher [16]

• 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.

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

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

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

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

• 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.

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

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

• 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.

  
  

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

  
  

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

  
  

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

  
  

• 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.

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

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

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

Katja and Guido Socher [6]

• 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.

• 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.

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

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

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

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

Ken Yap [1]

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

Klaus Mueller [2]

• 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.

• IDS - Intrusion Detection System, part I
  

Lamarque Eric [1]

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

  
  

Lee Wee Tiong [1]

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

Leonardo Giordani [6]

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

• 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.

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

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

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

  
  

• 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.

  
  

Linda Christie [1]

• 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.

Lorne Bailey [2]

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

  
  

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

  
  

Luca Bariani [1]

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

  
  

Luis Colorado [2]

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

• Making Shared Libraries
  How to compile and generate shared libraries.

Majid Hameed [1]

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

Manuel Benet Navarro [2]

• f-CPU Project: Attempting the "even harder"
  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.

• Interview with Dennis Ritchie
  Dennis Ritchie is the one who developed C and Unix.

Manuel Martinez [1]

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

Manuel Muriel Cordero [2]

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

• Basic UNIX commands
  Simple introduction to some of the basic UNIX tools

Manuel Soriano [3]

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

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

• Linux in Hospitals
  Linux means business, an example of using Linux in the health care environment.

Manuel Trujillo Albarral [2]

• Some Tips
  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.

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

Mario M. Knopf [4]

• 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.

  
  

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

  
  

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

  
  

• 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.

  
  

Mark Nielsen [6]

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

  
  

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

  
  

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

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

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

  
  

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

  
  

Martin Van Velsen [1]

• MindsEye: 3D Modeling
  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.

Matthias Rechenburg [1]

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

  
  

Michael Jastremski [1]

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

  
  

Michael Tschater [1]

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

  
  

Miguel A Sepulveda [15]

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

• Happy Hacking Keyboard
  Product review of the Happy Hacking Keyboard

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

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

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

• OpenGL Programming: More about Lines
  The Author describes more of the line rendering capabilities of OpenGL

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

• GLUT programming:Windows and Animations
  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.

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

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

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

• Setting Up a ZIP drive on an Alpha platform
  Tips for users of a DEC-Alpha

• Enabling Profile on the Alpha
  Tips for users of a DEC-Alpha

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

• What is Linux?
  A brief history of Linux

Mooneer Salem [1]

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

Mulyadi Santosa [1]

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

Nico Golde [1]

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

Nicolas Bouliane [1]

• 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.

Olivier Chapuis [1]

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

Omar Andres Armas Aleman [1]

• Interview with Miguel de Icaza
  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.

Ozcan Gungor [4]

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

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

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

  
  

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

  
  

Penelope Marr [1]

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

Phil Ross [6]

• Creating and Editing Animations with GIMP
  Simple techniques to create and edit animations using the Gimp

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

• Graphical Photo composition with The Gimp
  A comparison between Photoshop and Gimp

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

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

• Straight from the Horse's Mouth
  Bill Gates on customer support

Philip de Groot [3]

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

  
  
• Real-time mp3 recording, part II
  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?

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

Phillip Gühring [2]

• Dialog - a programming language for dialogs
  Dialog is a programming language to program dialogs in games and computer simulations

  
  
• Funny shell commands
  Some interesting answers form your Unix c-shell

Pierre Loidreau [1]

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

  
  

Ralf Wieland [4]

• 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?

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

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

• 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?"

Razmal Djamal [1]

• 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.

Reha K. Gerceker [1]

• 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.

  
  

S. Parthasarath [1]

• 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!

Sandeep Grover [1]

• 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.

Sascha Blum [1]

• 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.

  
  

Sebastian Bauer [1]

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

Sebastian Sasias [1]

• 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.

  
  

Serge Lozovsky [1]

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

  
  

Serge Winitzki [1]

• GNU/Linux on Fujitsu 635T
  How to install Linux on a Fujitsu 635T laptop

Stefan Blechschmidt [3]

• 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.

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

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

Subhasish Ghosh [1]

• Compiling, Configuring and Installing a fully-working Customized Linux Kernel
  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.

  
  

Sujan M. Swearingen [1]

• Approaching Vector Linux
  Review of a mini linux distribution

  
  

Thomas Mangin [1]

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

  
  

Tjabo Kloppenburg [1]

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

  
  

Tom Uijldert [1]

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

Vincent Renardias [1]

• Packet filtering with Linux
  How to setup a basic firewall

Vincente Egea [2]

• Installation and Configuration of a Raid-system
  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.

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

Wang Xu [1]

• 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.

  
  

Wilbert Berendsen [1]

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

Yao Feng [1]

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

  
  

Yves Ceccone [4]

• XMRM: Multi Resolution Morphing
  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.

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

• Sketch, vectorial drawing under Linux
  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.

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