Pablo Iranzo Gómez


Página personal de Pablo Iranzo Gómez : http://Alufis35.uv.es/~iranzo/

Artículos de esta autora o autor (40)

Domingo 11 de mayo de 2008 Kickstart: instalaciones automatizadas para anaconda

Instalar linux Hoy en día todas las distribuciones suelen disponer de un instalador gráfico que mediante un sencillo asistente permiten particionar el sistema, seleccionar los paquetes, instalarlos y configurarlos. El problema viene cuando en lugar de instalar un PC en 40 minutos, tenemos que instalar 20, cada uno de esos pc’s, aunque podamos ir con varios discos a la vez, nos va a llevar más de 40 minutos hacer la instalación, por tener que ir siguiendo el asistente, escogiendo opciones, (...)
Enviado por Pablo Iranzo Gómez | 0 Comentario(s) | Visitas: 0 | Popularidad 0% | Palabras clave: Software Libre, Linux, Tutorial, Documentación | Leer más

Domingo 4 de mayo de 2008 Preparar Firefox para un kiosco

userChrome.css Firefox tiene en la carpeta del usuario, y dentro del perfil una subcarpeta llamada chrome y en ella el fichero userChrome.css Éste permite ajustar pequeños cambios en el diseño como mostrar u ocultar menús, botones, etc. Por ejemplo, podemos esconder el menú de ayuda con: #helpMenu display: none !important; Compactando el entorno Yo utilizo una visión más compacta reduciendo las barras, poniendo la barra de direcciones y búsqueda en la de menús: /* Remove the Edit and Help (...)
Enviado por Pablo Iranzo Gómez | 0 Comentario(s) | Visitas: 0 | Popularidad 0% | Palabras clave: Software Libre, Linux, Seguridad, Documentación | Leer más

Monday 21 April 2008 Logical volume manager (LVM)

Introducion LVM are the initials for Logical Volume Manager, a powerful tool present in actual Linux systems inspired in the implementation available in other systems like AIX and HP-UX. LVM introduces a separation between system structure and elements like disks, partitions, filesystems to which we are used to. LVM has three levels: Physical volumes Volume Groups Logical volumes One of the benefits of LVM over traditional systems is that LVM introduces an abstraction layer which (...)
Submitted by Pablo Iranzo Gómez | 0 Comments(s) | Visits: 0 | Popularity 0% | Keywords: Free/Opensource Software, Linux, Tutorial, Documentation | Read more

Viernes 4 de enero de 2008 Creando plantillas Jigdo (Jigsaw Download) para descargar ISO’s

Introducción Jigdo (JIGsaw DOwnload) es una pequeña utilidad que permite ensamblar imágenes de CD/DVD a partir de los ficheros que las forman. Por ejemplo, Debian ha estado utilizándolo durante algún tiempo para distribuir sus imágenes: se descarga un fichero jigdo y utilizando la orden jigdo-lite (paquete jigdo-lite en Debian y en las basadas en RPM. De este modo, sólo de descargan ficheros pequeños de incluso varios servidores, repartiendo la carga, y haciendo uso de posibles proxyes, etc. (...)
Enviado por Pablo Iranzo Gómez | 0 Comentario(s) | Visitas: 0 | Popularidad 0% | Palabras clave: Software Libre, Linux, Tutorial, Documentación | Leer más

Friday 4 January 2008 Security Enhanced Linux (SELinux)

Introduction SELinux is an implementation of MAC over LSM in Linux Kernel. SELinux, originally developed by N.S.A. allows applications to be confined by the kernel. Inside that “confined area”, much more grained than a standard chroot, in which we can allow only certain operations, for example: adding information to a file, read from a directory but not writing, even just for one file in a standard directory, etc... Policies Each policy has different applications, and restrictions to the (...)
Submitted by Pablo Iranzo Gómez | 0 Comments(s) | Visits: 0 | Popularity 0% | Keywords: Free/Opensource Software, Linux, Security, Documentation | Read more

Thursday 15 November 2007 Creating Jigsaw Download (Jigdo) files for downloading ISO’s

Introduction Jigdo (JIGsaw DOwnload) is a small utility that can assemble a CD/DVD image from it’s internal files. For example, Debian has been using it for years for distributing the entire distribution: you downloaded a .jigdo file, and then, using the utility jigdo-lite (package jigdo-file on Debian like and RPM based. This way, you only downloaded small files from servers, preventing line failures, spreading load between several servers, etc. Furthermore, if you already had some files (...)
Submitted by Pablo Iranzo Gómez | 0 Comments(s) | Visits: 0 | Popularity 0% | Keywords: Free/Opensource Software, Linux, Tutorial, Documentation | Read more

Viernes 9 de marzo de 2007 Gestor de Volúmenes Lógicos (LVM)

Introducción LVM son las siglas de Logical Volume Manager, gestor de volúmenes lógicos, una potente herramienta presente en los actuales sistemas Linux, inspirada en la implementación de la que disponían otros sistemas como AIX y HP-UX. LVM introduce una separación entre la estructura típica de un sistema y los elementos discos, Particiones, Sistemas de ficheros a los que estamos habituados. LVM funciona a tres niveles, a saber: Volúmenes físicos Grupos de volumen Volúmenes lógicos Una de las (...)
Enviado por Pablo Iranzo Gómez | 0 Comentario(s) | Visitas: 0 | Popularidad 0% | Palabras clave: Software Libre, Linux, Tutorial | Leer más

Wednesday 1 November 2006 SSH, stunnel and a proxy: double stunnel bypass

I’m working for a “very concerned about security” firm, that makes mandatory using VPN for accessing their network, and internal services: IMAPS SMTP Intranet Forums Online training, etc As it should, we provided services for a client, also very concerned about security, thus not allowing internet access despite of using two squid proxys with a network appliance filtering protocols, scripts, viruses and malware. They only allow FTP, HTTP and HTTPS. ¿What to do when you need to access your (...)
Submitted by Pablo Iranzo Gómez | 1 Comments(s) | Visits: 0 | Popularity 0% | Keywords: Privacy, Security | Read more

Saturday 29 July 2006 OCS Deployment Tips and tricks

Prior to using the following info for creating own-made packages, let’s test if everything is working fine. I’ve created a NSIS script that writes into registry in a key called HKLM\SOFTWARE\OCS and puts a key named “cert” with value “creilla”. If we create a package with action “LAUNCH”, and attach the regcert.zip with command to execute “regcert.exe”, all clients with functional package deployment, will add that key to registry, so we can check, using OCS registry query function for a key named (...)
Submitted by Pablo Iranzo Gómez | 0 Comments(s) | Visits: 0 | Popularity 0% | Keywords: Free/Opensource Software, Linux, OCS Inventory | Read more

Thursday 27 July 2006 OCS Inventory Package deployment

Introduction OCS Inventory is an excelent piece of GPL Software for getting info from hardware components, and software installed on computers running Windows or UNIX-like operating systems (there are also some unofficial clients for running on other platforms). Since New Generation (OCS-NG), a new architecture was implemented: server were contacted using standard TCP/IP connection , allowing remote computers to connect as well as providing a new web interface for computer administration, (...)
Submitted by Pablo Iranzo Gómez | 7 Comments(s) | Visits: 0 | Popularity 0% | Keywords: Free/Opensource Software, Linux, Tutorial, OCS Inventory | Read more