This is an index of all LinuxFocus articles sorted by authorname.
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.
Bookreview: Beginning PHP4 Databases
This is a book from Wrox-press on PHP4
Creating a simple animation is fun and easy, for children and adults alike.
QCad: Technical drawing with Linux
QCad is a 2D CAD system
Descubriendo el Ted
Ted is a very nice and light weight word processor
Fuentes y motivos con Gimp
This article shows how to use even more fonts and patterns with The Gimp.
Imágenes Pseudo 3D con Gimp
How to use Gimp for 3D graphics
CREAR UN EFECTO DE FUEGO EN GIMP
In this article we show a procedure to create fire effects with The GIMP in five steps
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.
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.
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.
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.
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.
Sistemas de alta disponibilidad bajo Linux
What is High Availability, why it is important and how to implement it using Linux.
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.
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.
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.
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.
Using PGPLOT for interactive graphics under Linux
In this article you will learn how to build an interactive graphics program written in Fortran.
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.
Secure your connections with SSH
This article is an in depth description of SSH.
La Sintaxis del Tcl
This article explains basics concept and syntax of the Tcl language
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.
Getting Linux to Run a Computer with an Alpha CPU
The author share with us his experiences putting together an Alpha PC
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.
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.
This article discusses he possibility of modeling and animating a scene using C or C!+
Posicionamiento Básico de la Cámara
Although the positioning is not as intuitive as Pov-Ray, it has an advantage when describing camera trajectories.
Who has not heard of Pixar? Who has not seen "Toy Story"? Pixar developed RenderMan.
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.
This article reviews the possibility of MagicPoint. This software is one of the very few that allow creation of presentations under X-Windows.
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.
Entrevista a 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.
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.
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
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.
Viruses : a concern for all of us
Viruses, Worms and Trojan Horses could also be a threat to Linux.
Setting up a Squid-Proxy Server
A proxy server can help to speed up an internet connection.
Aprendiendo con el nmap
nmap is a security scanner
Network Management and Monitoring with Linux
Some handy tools for managing today's ubiquitous networks
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.
Introduction to the TclMySQL library
MySQLTcl is a Tcl library to do SQL queries.
Book review: The Art of UNIX Programming
Review of the book "The Art of UNIX Programming" by Eric S. Raymond.
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.
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.
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.
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.
Editing DocBook XML Documents
This article describes the use of Kate and its XML plugin as a tool for editing DocBook XML documents
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.
Instalando los paquetes Debian de LinuxFocus
Article on how to install the Debian package of LinuxFocus.
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.
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.
A short description of the Linux Kernel.
Postscript III: La pila de operandos PostScript: Arrays, variables, bucles y definiciones de macros
This is the continuation of two previous articles about postscript.
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.
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.
The Postscript Language
This is the first one of a series of articles about PostScript.
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.
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.
This article presents the different types of external attacks that a cracker can use.
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
Construcción automática de un DHCP
This article explains how to configure easily DHCP on a network.
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 ;-)
El kit uCsimm
This article describes the uCsimm kit and the UClinux project: Porting the linux kernel on hardware without MMU (memory management unit).
Evitando agujeros de seguridad al desarrollar una aplicación - Parte 6: Scripts CGI
Security of CGI scripts
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 ...
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.
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.
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.
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 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.
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.
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.
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, ...).
automount y autofs
Automount and autofs are powerful tools and ease file systems management.
Enlightenment is a highly customizable window manager for Linux. This article discusses the features, installation, and customization of the Enlightenment window manager.
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 : Otro tabique en el muro de seguridad.
Nessus is more than a single security scanner
Psionic Portsentry 1.1, el defensor de los puertos
Port scan detection and active defense
Cantando bajo la web
Review of the new improved version of one of the lightest browsers
A través del túnel
Using free SSH with external applications on different OSes
GNUstep, el OpenStep open source
An object-oriented framework
Herramientas de seguridad
Free tools to harden your systems
Erase una vez... o Unix comercial vs Unix libre, y más!
Why choosing between a commercial or a free Unix
REBOL el rebelde
Let's say REBOL is a messaging language, but as a matter of fact, it's much more than that.
Virtual Network Computing, o VNC
The dream of the network administrator come true
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.
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.
WindowMaker (o NeXTStep) está de vuelta
Window Maker 0.61.1 is the latest release of a NeXT look-alike window manager.
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.
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.
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.
LF Tip: solving the ugly key problem
Good looking alternatives to the Windows key.
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: 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.
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.
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
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 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.
Revisión de libros: Programación profesional en PERL
This is a review of the book Professional Perl Programming from Wrox Press.
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.
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.
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.
IP-Masquerading provides the possibility to connect several computers to the Internet using a computer running Linux with just one public IP address.
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.
Perl (Parte III)
This article explains how to use arrays in Perl.
Redes Caseras, glosario y resumen
This article explains hardware and networking terminology
Perl Parte II
In the second part of the Perl tutorial we write our first real program.
Perl parte I
This is the start of a Perl tutorial
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.
Busqueda de ficheros
How to search for files by name or content.
Regular expressions are advanced search patters. This Article gives an introduction.
¡El Servidor de Fax fácil!
This article explains how to install hylafax, a fax server, on a linux box
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.
Analizando el juego GLTron
3D variant of those games, featuring the light-cycle race from the movie "Tron"
Revisión de juegos - Penguin Command
"Missile Command" clone with better gfx and sounds
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.
La secreta obsesión de Tux - Jugando con Linux
This is a short overview over the gaming scene under Linux.
Revisión de juegos : FreeCiv
FreeCiv is an open source clone of Sid Meier's popular Civilisation
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.
Desarrolando aplicaciones Gnome con Python (Parte I)
This series of articles is especially written for beginner in Gnome programming and GNU/Linux.
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.
How to use your ATEN UC-232A USB adapter with Linux
The ATEN UC-232A is a RS232 serial line to USB adapter.
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
Real Time Linux II
In this second issue devoted to RT-Linux I will try to offer a more practical view of RT-Linux.
This article looks at the word processor in StarOffice
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 is an editor with fantastic possibilities. Ismael gives us a little overview.
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.
Understanding HD44780 compatible LCD-displays
This article how the interface of a HD44780 compatible LCD-displays works at bits and byte level.
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
Ejemplos con awk: Una breve introducción
Examples on how to use AWK
Gráficos Fáciles: Guía de SVGAlib para Principiantes
SVGAlib is a simple graphics library that works without X11
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.
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.
The X Display Manager
The X Display Manager runs as a daemon on a host machine and manages multiple X displays.
What are all those dotfiles for anyway?
Building, Installing and Configuring sendmail 8.8.x
This is a copy of a Mini HOWTO on sendmail
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.
Basic Programming with Unix
Review of Basic interpreters, IDEs for Basic, and and other things to build Basic programms under Linux.
Revisión de libros: Professional PHP Programming
This article,reviews the book Professional PHP Programming,a Programmer to programmer collection from WROX press.
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.
Construyendo ficheros de texto con macros de m4
This article shows how to use m4 macros
Gambas: Basic for Linux
Gambas is a Basic interpreter for Linux with GUI support.
Java. Parte II
The second part of a tutorial about java
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.
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.
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.
Book review: Mastering Red Hat Linux 9
This is a review of the book Mastering Red Hat Linux 9. by Jang, Michael, Sybex.
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.
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
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.
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
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.
Hacer magia con las imágenes en la 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.
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.
Programación en Shell
In this article we explain how to write little scripts.
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.
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.
GIMP: Make your own brushes
This article explains the various brush types that Gimp has and shows how to create own brushes.
Japonés en Linux, Parte I
This article takes a brief overview at how to make your Linux system Japanese-capable.
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.
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.
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.
PG2CGI Acceso a Bases de Datos desde el Web
We describe a new program that allows one accessing a database from HTML pages.
Creación de Bibliotecas Compartidas
How to compile and generate shared libraries.
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.
Entrevista con Dennis M. Ritchie
Dennis Ritchie is the one who developed C and Unix.
Interview with Linus Torvalds
Linus Torvalds talks about the past and future of Linux and shares his opinions on current events
The GNU utilities are a set of standard UNIX commands available with almost every UNIX system.
Ordenes básicas de la línea de comandos
Simple introduction to some of the basic UNIX tools
SQL Tutorial <br>Parte 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.
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.
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.
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
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.
Acelerando pequeñas bases de datos en Linux
A Ramdisk can be used to make small PostgreSQL databases really fast.
Cómo usar un ramdisk bajo Linux
This article shows how to use RAM as a virtual harddisk.
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.
MOSIXVIEW, una herramienta grafica para manejar un cluster MOSIX
This article describes a management GUI for the MOSIX-Cluster technologie (www.mosix.org)
Añadiendo Seguridad a una Distribución de Linux
How to modify a Linux distribution out of the box to get better security.
Evaluación de Libros: HTML & XHTML, O'Reilly
Review of the book HTML & XHTML published by O'Reilly
Teclado "Happy Hacking"<BR> Revisión del producto
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 resuelto: Alpha Linux lo hizo
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
Haciendo funcionar el profile en una 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
Creating a (Somewhat Useful) Version of Linux
Follow this article and learn how to create your own set of boot/root disks under Linux.
Como borrar Windows
This article describes how to remove Windows and give the disk space to Linux without re-installing it
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.
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.
Caracteres Chinos en Linux
This brief article describes how to enable Chinese locale on a "standard" Linux box.
Creando y Editando Animaciones con 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
Revisión hardware:<br> Programando en OpenGL & GLUT con la tarjeta Voodoo 3dfx
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
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?
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.
Comandos divertidos con csh/sh
Some interesting answers form your Unix c-shell
Introduction to cryptography
This article expains what cryptography is and how it works.
Linux in science -- or how a useful neural network utility was developed
This article shows how useful Linux-based software in science is.
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?"
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.
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.
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.
An ISDN - Fax with Linux
This article describes how to use your linux box as an ISDN fax machine.
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.
VXE,una herramienta para la seguridad en Linux
Serge Lozovsky presents a software package that he developed to make UNIX systems more secure.
GNU/Linux en un Fujitsu 635T
How to install Linux on a Fujitsu 635T laptop
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.
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.
Analizando Vector Linux
Review of a mini linux distribution
Cómo particionar su disco duro para Linux
Thomas explains how he has chosen to partition his hard disk.
Packet filtering with Linux
How to setup a basic firewall
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.
Un vehículo autoguiado basado en Linux
This ariticle describes a Linux based robot as developed at the Universidad Politecnica de Valencia
¡Trabaja con make!
This article explains how "make" works. It shows that "make" is more than just a command to compile software.
Como usar tu CD-ROM en Linux
This article gives a short but useful description on how to use your CD-ROM under Linux.
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.
Gimp : Using layers and their masks
Mask layers from Gimp are a really universal tool for all kind of tricks.
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.
Las utilidades de selección de Gimp y la corrección de color
This article explains how to use Gimp's powerful selection mechanisms.
Web mantenidas por el equipo editorial de LinuxFocus