Nos mandan un artículo de como crear un metodo de autentificación de varias capas usando SSH y PAM para hacer mas seguros los accesos a nuestros sistemas

Security always requires a multi-layered scheme. SSH is a good example of this. Methods range from simple sshd configuration through the use of PAM to specify who can use SSH, to application of port-knocking techniques, or to hide the fact that SSH access even exists. Applying these techniques can make life much harder for possible intruders, who will have to go past three unusual barriers.

Nos mandan un artículo introductorio al mantenimiento del sistema de archivos en sistemas con Linux…

Learn how to check the integrity of your Linux filesystems, monitor free space, and fix simple problems. Use the material in this article to study for the Linux Professional Institute (LPI) 101 exam for Linux system administrator certification—or just to check your filesystems and keep them in good working order, especially after a system crash or power loss.

Nos mandan un artículo sobre como implementar esquemas de Fail-over en sistemas AIX. Independientemente del operativo que menciona, se me hace una buena referencia introductoria a esquemas de Fail-over para cualquier sistema operativo:

PowerHA for AIX is the new name for HACMP (High Availability Cluster Multiprocessing). HACMP is an application that makes system fault resilient and reduces downtime of applications. This article introduces PowerHA and provides a detailed explanation of how to configure a two node cluster. This document is very useful for understanding PowerHA and setting up a two node cluster.

Nosn mandan un artículo introductorio a Bazaar, que es un sistema controlador de versiones tipo CVS, Subversion, GIT, etc.

Bazaar is used to produce the Ubuntu Linux distribution, which is an enormous software project with thousands of components. If you’re using a UNIX or Linux system, chances are that your distribution offers a pre-built Bazaar package. Bazaar is flexible enough to accommodate Subversion – a centralized system and Git – a decentralized system. This article introduces you to Bazaar‘s many appealing features.

Nos mandan esta nota sobre FC++, que es una programación funcional utilizando C++:

C++ is usually synonymous with object-oriented programming (OOP), and further replenished in no small measure by popular technical literature. This article tries something different—functional programming with C++ using the open source FC++ library from Yannis Smaragdakis and Brian McNamara. Learn how you can use FC++ to implement basic functional programming.

Nos mandan un artículo sobre como cambiar el tamaño de particiones en un file system previamente creado:

Several tools exist to Resizing Linux partitions, but there are a number of potential pitfalls and restrictions that can make the task more difficult than it might at first seem. This article guides you through the task of resizing Linux partitions, beginning with basic preparations and moving on to common resizing scenarios using graphical user interface (GUI) tools.

One of the most novel and differentiating features of a UNIX system is its command line. With just a few keystrokes, including a bit of “glue”, you can use the command line to combine the finite set of UNIX utilities into innumerable, impromptu data transforms. These articles will teach you the basics of the UNIX shell and discover how you can use the command line:

• Command the power of the command line
• Do everything right from the command line
• Command-line locution – Expand your UNIX vocabulary
• Ten more command-line concoctions

Cuando salga esta nota, yo estaré impartinedo una conferencia en Campus Party 2010 sobre marcación automática usando Asterisk.

Hice un pequeño programa en perl llamado “joder.pl” que hace exactamente lo que su nombre dice.

Pones un número a marcar y el lapso en segundos y marca a un teléfono victima y repite esto hasta que interrumpes el programa.

Es una versión muy simplificada de un marcador, pero es para mostrar las posibilidades infinitas para crear programas interesantes…
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Nos mandan una guía básica de como particionar discos duros bajo Linux:

In this article learn how to create partitions on a disk drive and how to format them for use on a Linux system as swap or data space. In this related article on Hard disk Layout you can learn how to design a partition layout for disks on a Linux system.

Nos mandan un artículo de como utilizar en Linux una nueva característica llamada DRBD (Distributed Replicated Block Device), que permite copiar bloques de información por red y crear esquemas de fail-over:

The 2.6.33 Linux kernel has introduced a useful new service called the DRBD – Distributed Replicated Block Device. This service mirrors an entire block device to another networked host during run time, permitting the development of high-availability clusters for block data. Explore the ideas behind the DRBD and its implementation in the Linux kernel.