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Indice de LinuxFocus por número

Este es un índice con todos los artículos publicados en LinuxFocus, ordenados según el número en el que aparecieron.

2003/05

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

2003/03

• Basic accoustics and signal processing for musicians
  Everything about sound. The physics, wave forms, the human ear.... What is digital sound...?
  
• Secure your connections with SSH
  This article is an in depth description of SSH.
  
• Bookreview: Beginning PHP4 Databases
  This is a book from Wrox-press on PHP4
  
• External attacks
  This article presents the different types of external attacks that a cracker can use.
  
• 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.
  

2003/01

• Managing HTML with Perl, HTML::TagReader
  HTML::TagReader is a light weight Perl module to process a file Tag by Tag.
  
• 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.
  
• Concurrent programming - Communications between processes
  This is the second article in the series on concurrent programming.
  

2002/11

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

2002/09

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

2002/07

• Hardware watchdog and shutdown button
  This is a simple circuit to connect to the serial line of your computer.
  
• 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.
  
• 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.
  
• Compile your own Linux kernel
  This a really comprehensive article that teaches you how to download , configure, compile and install your own kernel.
  
• Light, Camera, Action... Kino!
  Connect your digital video camera via firewire to Linux and start cutting.
  

2002/05

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

2002/03

• 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
  
• 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.
  
• 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.
  

2002/01

• QCad: Technical drawing with Linux
  QCad is a 2D CAD system
  
• Running applications remotely with X11
  X Window System is much more than just an environment to manage the windows of graphical applications.
  
• 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.
  

2001/11

• Fuentes y motivos con Gimp
  This article shows how to use even more fonts and patterns with The Gimp.
  
• Gimp : Using layers and their masks
  Mask layers from Gimp are a really universal tool for all kind of tricks.
  
• 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.
  
• Evitando agujeros de seguridad al desarrollar una aplicación - Parte 6: Scripts CGI
  Security of CGI scripts
  
• Nessus : Otro tabique en el muro de seguridad.
  Nessus is more than a single security scanner
  
• 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.
  
• MOSIXVIEW, una herramienta grafica para manejar un cluster MOSIX
  This article describes a management GUI for the MOSIX-Cluster technologie (www.mosix.org)
  
• Atek Super Mini Optical Mouse
  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
  Explore the land of the penguin with Tux as a guide on your side.
  
• How to use your ATEN UC-232A USB adapter with Linux
  The ATEN UC-232A is a RS232 serial line to USB adapter.
  

2001/09

• XMRM : Morphing bajo Linux
  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.
  
• Evitando agujeros de seguridad al desarrollar una aplicación - Parte 5: condiciones de carrera
  This fifth article is about race conditions :what they are, how to avoid them ...
  
• Empleo de XML y XSLT para desarrollar LinuxFocus.org (Holanda)
  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.
  
• Analizando los ficheros log de sus aplicaciones de Internet
  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, el defensor de los puertos
  Port scan detection and active defense
  
• E-mail sobre UUCP: La solución profesional para usuarios de modems
  UUCP is an old protocol but it is very good to handle E-mail over dialup connections.
  
• Programación en Shell
  In this article we explain how to write little scripts.
  

2001/07

• Páginas Amarilla, 1ª parte
  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, ...).
  
• 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+
  
• Aprendiendo con el nmap
  nmap is a security scanner
  
• Security holes - part IV
  This fourth article deals with format strings security holes
  
• Cantando bajo la web
  Review of the new improved version of one of the lightest browsers
  
• Revisión de libros: Programación profesional en PERL
  This is a review of the book Professional Perl Programming from Wrox Press.
  
• Compilar, configurar e instalar un Kernel de Linux Personalizado comletamente operativo
  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.
  
• Usos (y abusos) de Raid, /dev/ram, y ramfs
  ramfs is a new file system in the 2.4 Kernel. It is very simple but could have some interesting applications.
  
• Hacer magia con las imágenes en la shell
  This article explains how to automate image processing with the shell and ImageMagick
  

2001/05

• ¡Trabaja con make!
  This article explains how "make" works. It shows that "make" is more than just a command to compile software.
  
• Evitando agujeros de seguridad durante el desarrollo de aplicaciones - 3ª Parte : desbordamiento de búfer
  This article explains how to exploit badly programmed software by using buffer overflows.
  
• Analizando el juego GLTron
  3D variant of those games, featuring the light-cycle race from the movie "Tron"
  
• 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.
  
• A través del túnel
  Using free SSH with external applications on different OSes
  
• 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?
  
• Construción de un robot caminante controlado mediante Linux
  In this article you learn how to build a small walking insect and control it with Linux over the parallel port.
  

2001/03

• POVRAY IV: Uso de las texturas en Povray
  Here we build a study room with different items on the table. We build the scene by extensively using textures.
  
• Grabación en mp3 en tiempo real
  Recording music in mp3-format gives you the possibility to record very long pieces of music without exhausting the disk-space.
  
• 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.
  
• Usando distintos ISPs para su acceso a Internet
  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.
  
• Revisión de juegos - Penguin Command
  "Missile Command" clone with better gfx and sounds
  
• GNUstep, el OpenStep open source
  An object-oriented framework
  
• ¡El Servidor de Fax fácil!
  This article explains how to install hylafax, a fax server, on a linux box
  
• Book Review: Beginning Linux Programming
  This is the review of a "Linux programming bible" published by Wrox press.
  
• Replicado de datos en tiempo real bajo 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.
  

2001/01

• Las utilidades de selección de Gimp y la corrección de color
  This article explains how to use Gimp's powerful selection mechanisms.
  
• automount y autofs
  Automount and autofs are powerful tools and ease file systems management.
  
• Multicast
  This article is an introduction to multicast technologies on TCP/IP networks.
  
• Slackware 7.0 parte II: la Guía de la Configuración
  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.
  
• Herramientas de seguridad
  Free tools to harden your systems
  
• Evitando los agujeros de seguridad durante el desarrollo de aplicaciones - Parte 1
  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.
  
• 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.
  
• Evaluación de Libros: HTML & XHTML, O'Reilly
  Review of the book HTML & XHTML published by O'Reilly
  
• Revisión del Juego - 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.
  

2000/11

• Descubriendo el Ted
  Ted is a very nice and light weight word processor
  
• Utilidades GNU
  The GNU utilities are a set of standard UNIX commands available with almost every UNIX system.
  
• NFS - Sistema de Ficheros en Red
  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.
  
• 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.
  
• xinetd
  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.
  
• Erase una vez... o Unix comercial vs Unix libre, y más!
  Why choosing between a commercial or a free Unix
  
• Sistemas de alta disponibilidad bajo Linux
  What is High Availability, why it is important and how to implement it using Linux.
  

2000/09

• Guía de Instalación de Slackware 7.0. Parte I
  The author describes in detail the installation of the Slackware 7.0 Linux distribution. This article is written for beginners.
  
• MagicPoint
  This article reviews the possibility of MagicPoint. This software is one of the very few that allow creation of presentations under X-Windows.
  
• Bastille-Linux o cómo mejorar la seguridad de nuestro sistema
  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.
  
• Revisión de libros: Professional PHP Programming
  This article,reviews the book Professional PHP Programming,a Programmer to programmer collection from WROX press.
  
• Analizando Vector Linux
  Review of a mini linux distribution
  
• REBOL el rebelde
  Let's say REBOL is a messaging language, but as a matter of fact, it's much more than that.
  
• Como informar sobre errores en 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.
  
• Construyendo ISPs escalables con software de código abierto
  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.
  

2000/07

• Imágenes Pseudo 3D con Gimp
  How to use Gimp for 3D graphics
  
• Virtual Network Computing, o VNC
  The dream of the network administrator come true
  
• Introducción al módulo XML::XSLT para perl
  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.
  
• Introducción a LDAP sobre Linux
  This article will talk about the benefits of deploying LDAP in an organization and how to implement it on Linux.
  
• Desarrolando aplicaciones Gnome con Python (Parte I)
  This series of articles is especially written for beginner in Gnome programming and GNU/Linux.
  
• Instalando los paquetes Debian de LinuxFocus
  Article on how to install the Debian package of LinuxFocus.
  
• Displays LCD por puerto serie bajo Linux
  This article show how to use the BLC2021 PC-Bay Insert serial line display from Matrix Orbital under Linux.
  

2000/05

• Apache: primera parte
  This article is an introduction to the HTTP protocol it takes also a look at the history of the World Wide Web.
  
• Sendmail y fetchmail: Un servidor de correo local
  Sendmail is a powerful but complex software. This article explains how to configure sendmail and fetchmail for use on a typical home computer.
  
• Arkeia, una solución comercial y profesional de almacenamiento para redes
  Arkeia 4.2.3-1 is the latest version of a commercial and professional network backup solution from Knox Software.
  
• Construcción automática de un DHCP
  This article explains how to configure easily DHCP on a network.
  
• Configurando 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.
  
• Crear documentos PDF con 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.
  
• Aprendiendo a utilizar el editor VI
  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.
  

2000/03

• Receptor de mando a distancia con RT-Linux
  In this article a simple electric circuit is used to process commands from any infra-red remote control.
  
• NEdit, el editor universal del mundo Unix
  Nedit is a remarkable editor. Unfortunately it is not included in most Linux distributions and therefore not as well known as other editors.
  
• Revisión de producto: SNiFF+ para Linux
  SNiFF+ is an integrated development environment for Linux. TakeFive Software provides a download version (limited to 200 files) free of charge.
  
• RedHat Linux 5.2 + SCO Openserver 5.0.5 + Windows NT 4.0 (o algo así)
  Edgar explains how to setup one PC boot to boot 3 operating systems.
  
• El kit uCsimm
  This article describes the uCsimm kit and the UClinux project: Porting the linux kernel on hardware without MMU (memory management unit).
  
• Usando el ProxyPass de Apache para acceder a servidores que están detrás de un host enmascarado.
  This article demonstrates how to make a webserver behind a firewall available on the internet without changing rules on your firewall or compromising security.
  

2000/01

• FSViewer, un gestor de ficheros para 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.
  
• WindowMaker (o NeXTStep) está de vuelta
  Window Maker 0.61.1 is the latest release of a NeXT look-alike window manager.
  
• Reciclando Direcciones IP con Apache
  This article demonstrates how to serve multiple virtual web servers using the same Ip address with Apache on Unix/Linux.
  
• VXE,una herramienta para la seguridad en Linux
  Serge Lozovsky presents a software package that he developed to make UNIX systems more secure.
  
• Redes Caseras, glosario y resumen
  This article explains hardware and networking terminology
  
• Cómo particionar su disco duro para Linux
  Thomas explains how he has chosen to partition his hard disk.
  
• Perl (Parte III)
  This article explains how to use arrays in Perl.
  

1999/11

• CREAR UN EFECTO DE FUEGO EN GIMP
  In this article we show a procedure to create fire effects with The GIMP in five steps
  
• Revisión de juegos : FreeCiv
  FreeCiv is an open source clone of Sid Meier's popular Civilisation
  
• La secreta obsesión de Tux - Jugando con Linux
  This is a short overview over the gaming scene under Linux.
  
• Sketch, gráficos vectoriales bajo 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.
  
• Cómo usar un ramdisk bajo Linux
  This article shows how to use RAM as a virtual harddisk.
  
• Acelerando pequeñas bases de datos en Linux
  A Ramdisk can be used to make small PostgreSQL databases really fast.
  
• Perl Parte II
  In the second part of the Perl tutorial we write our first real program.
  

1999/09

• Ejemplos con awk: Una breve introducción
  Examples on how to use AWK
  
• Nerdbank - una iniciativa bancaria para el uso de interfaces abiertas en comercio electrónico
  Nerdbank is a project to develop an open and secure banking system for worldwide electronic money transactions.
  
• Como usar tu CD-ROM en Linux
  This article gives a short but useful description on how to use your CD-ROM under Linux.
  
• Dialog - a programming language for dialogs
  Dialog is a programming language to program dialogs in games and computer simulations
  
• La Sintaxis del Tcl
  This article explains basics concept and syntax of the Tcl language
  
• Construyendo ficheros de texto con macros de m4
  This article shows how to use m4 macros
  
• Perl parte I
  This is the start of a Perl tutorial
  

1999/07

• Entrevista con Dennis M. Ritchie
  Dennis Ritchie is the one who developed C and Unix.
  
• PostScript II: La pila de operandos, manipulaciones y operadores matem'atico
  The author describes the operand stack of the PostScript language. The stack manipulations and mathematical operators are presented here.
  
• Renderman III
  This article discusses he possibility of modeling and animating a scene using C or C!+
  
• El Proyecto F-CPU: Intentando el "más difícil todavía"
  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.
  
• Japonés en Linux, Parte I
  This article takes a brief overview at how to make your Linux system Japanese-capable.
  
• Postscript III: La pila de operandos PostScript: Arrays, variables, bucles y definiciones de macros
  This is the continuation of two previous articles about postscript.
  
• Como borrar Windows
  This article describes how to remove Windows and give the disk space to Linux without re-installing it
  
• Comandos divertidos con csh/sh
  Some interesting answers form your Unix c-shell
  

1999/01

• Un vehículo autoguiado basado en Linux
  This ariticle describes a Linux based robot as developed at the Universidad Politecnica de Valencia
  
• Instalación y Configuración de un Sistema RAID
  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.
  
• Teclado "Happy Hacking"<BR> Revisión del producto
  Product review of the Happy Hacking Keyboard
  
• PG2CGI Acceso a Bases de Datos desde el Web
  We describe a new program that allows one accessing a database from HTML pages.
  
• Permisos de Acceso a Ficheros
  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. Parte II
  The second part of a tutorial about java
  

1998/11

• Ordenes básicas de la línea de comandos
  Simple introduction to some of the basic UNIX tools
  
• Entrevista a David Bagley
  David Bagley is the current maintainer of xlock, a popular X Window screen saver and locking utility.
  
• GNU/Linux en un Fujitsu 635T
  How to install Linux on a Fujitsu 635T laptop
  
• 3 lbs, 31,000 pies y 3 vasos de vino a 397.31 bogomips-Linux y el Sony Vaio 505gx
  How to install Linux on a Sony Vaio 505gx
  
• Gráficos Fáciles: Guía de SVGAlib para Principiantes
  SVGAlib is a simple graphics library that works without X11
  

1998/10

• Linux como herramienta educativa en laboratorios de estudiantes
  The author describes a first hand account of how Linux is changing the face of research labs in educational institutions in Turkey.
  

1998/09

• Introducción al arranque en red y a Etherboot
  An advanced article that explains how to bootstrap your computer from a program stored in non-volatile memory without accessing your hard disk.
  
• Busqueda de ficheros
  How to search for files by name or content.
  
• Caracteres Chinos en Linux
  This brief article describes how to enable Chinese locale on a "standard" Linux box.
  
• Entrevista a 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
  

1998/07

• Design of Recursive Structures. POVRAY III
  The author explores the use of iterative structures within POVRAY and the beautiful images that they can generate.
  
• Creando y Editando Animaciones con GIMP
  Simple techniques to create and edit animations using the Gimp
  
• Enlightenment
  Enlightenment is a highly customizable window manager for Linux. This article discusses the features, installation, and customization of the Enlightenment window manager.
  
• Expresiones Regulares
  Regular expressions are advanced search patters. This Article gives an introduction.
  
• Linux among artists at BUF COMPAGNIE
  BUF Company is a major synthetic image maker in the film business.
  
• StarOffice Editor
  This article looks at the word processor in StarOffice
  
• Real Time Linux II
  In this second issue devoted to RT-Linux I will try to offer a more practical view of RT-Linux.
  
• Java. Parte 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.
  
• SQL Tutorial <br>Parte II
  Part II of the tutorial reviews several basic statements of the SQL language.
  
• MySQL<BR> Servidor de Bases de Datos
  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.
  
• Añadiendo Seguridad a una Distribución de Linux
  How to modify a Linux distribution out of the box to get better security.
  
• TCPD y Firewalls usando 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
  
• Posicionamiento Básico de la Cámara
  Although the positioning is not as intuitive as Pov-Ray, it has an advantage when describing camera trajectories.
  

1998/05

• 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.
  
• 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.
  
• Creating a (Somewhat Useful) Version of Linux
  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
  A SQL tutorial intended for novice database developers.
  
• The X Display Manager
  The X Display Manager runs as a daemon on a host machine and manages multiple X displays.
  
• 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).
  
• 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.
  
• RenderMan
  Who has not heard of Pixar? Who has not seen "Toy Story"? Pixar developed RenderMan.
  
• The Postscript Language
  This is the first one of a series of articles about PostScript.
  
• Real-Time Linux
  Basic Concepts of Real-Time.
  
• 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.
  
• OpenGL: the 3D Scene
  Explore the bolts and nuts of 3D rendering with OpenGL.
  
• GLUT: using Menus
  Our GL Utility Toolkit series continues, examining the windows menu programming interface with a simple example.
  
• 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.
  
• 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.
  

1998/03

• Revisión hardware:<br> Programando en OpenGL & GLUT con la tarjeta Voodoo 3dfx
  How to program OpenGL on a Voodoo 3Dfx graphic card.
  
• Configuring X
  What are all those dotfiles for anyway?
  
• 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.
  
• Through the Window
  Some notes about window managers.
  
• Interview with Linus Torvalds
  Linus Torvalds talks about the past and future of Linux and shares his opinions on current events
  
• OpenGL Programming: More about Lines
  The Author describes more of the line rendering capabilities of OpenGL
  
• GLUT Programming: Windows Management
  This article explains the usage of the GLUT windows management sub-API
  
• POVRAY I: First Steps
  This article begins a series about the Povray raytracer.
  
• Lyx Review
  Lyx is an editor with fantastic possibilities. Ismael gives us a little overview.
  
• Building, Installing and Configuring sendmail 8.8.x
  This is a copy of a Mini HOWTO on sendmail
  
• Graphical Photo composition with Photoshop
  A comparison between Photoshop and Gimp
  
• Graphical Photo composition with The Gimp
  A comparison between Photoshop and Gimp
  

1998/01

• Straight from the Horse's Mouth
  Bill Gates on customer support
  
• Haciendo funcionar el profile en una Alpha
  Tips for users of a DEC-Alpha
  
• Setting Up a ZIP drive on an Alpha platform
  Tips for users of a DEC-Alpha
  
• ECC2-79 resuelto: Alpha Linux lo hizo
  A short note about a group of Alpha Linux enthusiasts who cracked ECC2-79
  
• Mail From Our Readers
  E-mail feedback after the first issue of Linuxfocus went out
  
• What is OpenGL?
  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
  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
  The author describes the first steps into any OpenGL application and tells us how to render simple polygons in 2D.
  
• 3Dfx graphics card
  3Dfx Interactive's 3D chipset is changing the world of high-end graphics.
  
• Kernel Secrets
  A short description of the Linux Kernel.
  
• Debugging Code with ddd
  ddd is a wonderful graphical debugger.
  
• Network Management and Monitoring with Linux
  Some handy tools for managing today's ubiquitous networks
  
• Getting Linux to Run a Computer with an Alpha CPU
  The author share with us his experiences putting together an Alpha PC
  

1997/11

• What is Linux?
  A brief history of Linux
  
• Installation of Manpages-es
  How to get man-pages of the most important Linux system commands in Spanish.
  
• 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.
  
• 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.
  
• 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.
  
• Creación de Bibliotecas Compartidas
  How to compile and generate shared libraries.
  
• PGP Under Linux
  The author gives an introduction to PGP.
  
• 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.
  
• Linux in Hospitals
  Linux means business, an example of using Linux in the health care environment.