A VPN is a secure, private communication tunnel between `two or more devices across a public network (like the Internet). These VPN devices can be either a computer running VPN software or a special device like a VPN enabled router. It allows your home computer to be connected to your office network or can allow two home computers in different locations to connect to each over the Internet.
Even though a VPN’s data travels across a public network like the Internet, it is secure because of very strong encryption. If anyone ‘listens’ to the VPN communications, they will not understand it because all the data is encrypted. In addition, VPN’s monitor their traffic in very sophisticated ways that ensure packets never get altered while traveling across the public network. Encryption and data verification is very CPU intensive.
Administer & manage remote access connections within the VPN Console
Configure VPN Clients to connect to the VPN Server using PPTP

Knowing how to set up and use terminal services allows the administrator to easily manage servers and remote users. From one system the administrator can manage multiple servers.

LinuxCBT SELinux Edition is unparalleled in content, depth and expertise. It entails 11-hours, or over 1-day of classroom training. LinuxCBT SELinux Edition prepares you or your organization for successfully securing GNU/Linux & Open Source-based solutions. As a by-product, many of the covered concepts, utilities and tricks are applicable to heterogeneous computing environments, ensuring your coverage of the fundamentals of securing corporate infrastructures.

Este martes Microsoft ha publicado 16 boletines de seguridad (del MS10-071 al MS10-086) correspondientes a su ciclo habitual de actualizaciones. Según la propia clasificación de Microsoft cuatro de los boletines presentan un nivel de gravedad "crítico", diez son clasificados como "importantes", mientras que los dos restantes son de grado "moderado". En total se han resuelto 49 vulnerabilidades.

Sin duda se trata de una actualización histórica, nunca Microsoft había publicado un grupo de boletines tan amplio ni se habían corregido tantas vulnerabilidades. Y a estás alturas, cuando aún quedan dos meses para finalizar el año, ya se ha superado el número de boletines publicados en años anteriores (nunca se había alcanzado la cifra de 80 boletines de seguridad).

Se ha publicado una actualización acumulativa (de carácter crítico) para Internet Explorer, que además resuelve siete nuevas vulnerabilidades. Otras actualizaciones críticas han afectado al servicio de uso compartido de red del reproductor Windows Media, al motor de fuentes OpenType y a .Net Framework. Todas las vulnerabilidades críticas resueltas podrían llegar a permitir la ejecución remota de código.

Game Developer magazine is a monthly trade periodical for the video game industry.
The magazine is available free to qualified game professionals in the USA,
and paid paper subscriptions and a paid digital edition are also available.
Individual issues can be bought at Gamasutra.
Game Developer was launched in March 1994 and is now distributed to 35,000 readers, mainly in North America.

SuSE ha publicado una actualización para múltiples paquetes de diversos productos SuSE Linux que corrigen hasta 35 problemas de seguridad que podrían permitir la ejecución remota de código. Los problemas afectan a SuSE Linux Enterprise Server 9; SuSE Linux Enterprise 10-SP3, 11 y SLE11-SP1; openSUSE 11.1, 11.2 y 11.3.

De forma resumida, las vulnerabilidades son:

* Se ha corregido un desbordamiento de búfer en samba que podría ser aprovechado por un atacante remoto para conseguir ejecutar código arbitrario.

* Se han corregido fallos de desbordamiento de entero en el tratamiento de libgdiplus0 de imágenes tiff, bmp o jpeg específicamente manipuladas.

* Se ha actualizado el motor de navegación libwebkit a la versión 1.2.4 para corregir once problemas de diversa índole.

* Se ha corregido un fallo en bzip2 que podría permitir la ejecución de código arbitrario.

* PHP se ha actualizado a la versión 5.2.14 para corregir 20 vulnerabilidades en OpenSuSE 11.1.

* Por último, se ha corregido un desbordamiento de búfer en Okular al abrir archivos pdf específicamente creados.

CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you're a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you're tired of ponderously large and thoroughly undocumented framework

LearnPHP&MySQL is a comprehensive resource of categorized web development tutorials. We intend to make it the richest online database of web development tutorials, including, but not limited to, PHP and MySQL tutorials. Enjoy browsing our growing selection of free professional PHP/MySQL tutorials to find out that you don’t need to be a Super Brain to learn web development in all its minutest details. Create web pages with dynamic content, develop web based software applications, design your own PHP projects, and all that with our PHP tutorials. The tutorials are updated daily from different authors and sites so that you won’t have to spend hours searching the web for them yourself. The number of tutorials is constantly increasing as LearnPHP.org is open to readers as well as to new authors. If you’re a programming guru or an experienced amateur this is the place for you to submit your tutorials. Enjoy browsing and learning!
* The MySQL database server (for both Unix and Windows)
* Accessing MySQL databases through PHP scripting (the letters don’t really stand for anything)
* Database creation and modification
* PHP tricks in order of increasing complexity–everything from basic SQL queries to secure transactions for commerce
* Authentication
* Network connectivity
* Session management
* Content customization
- PHP and MySQL Essential Training | Lynda.com
- PHP and MySQL Beyond The Basics | Lynda.com
- PHP and MySQL Basics and Ajax | CartoonSmart.com

Security Certified Network Professional
Genre: Video Training
Video 1 Lab Setup Video
This video is important because it lays out the scenario that you will be using throughout the video.

Video 2 Installing and Configuring a Public Key Infrastructure
Knowing how to implement PKI is necessary for the administrator that wants a root of trust for technologies that use digital certificates. There are a number of applications that businesses rely on that use digital certificates and Public Key Infrastructure is used to manage these.

This course teaches techniques for the design and analysis of efficient algorithms, emphasizing methods useful in practice. Topics covered include: sorting; search trees, heaps, and hashing; divide-and-conquer; dynamic programming; amortized analysis; graph algorithms; shortest paths; network flow; computational geometry; number-theoretic algorithms; polynomial and matrix calculations; caching; and parallel computing.  This course was also taught as part of the Singapore-MIT Alliance (SMA) programme as course number SMA 5503 (Analysis and Design of Algorithms).