Archive for the ‘Tips técnicos’ Category
Wednesday, August 4th, 2010
Nos mandan un artículo de como parchar el Kernel de Unix sin tener que detener operación, o al menos el menor tiempo posible:
Ksplice applies kernel patches on-the-fly – no reboot required — in a fraction of a second. Here’s a hands-on guide to performing painless system updates. Learn how to patch a live kernel and give reboots the boot.
Tags: AIX, HP-UX, Kernel, Solaris, sys admin, Unix
Posted in Linux, Sistemas Operativos, Tips técnicos, Unix | 1 Comment »
Tuesday, August 3rd, 2010

Pues leí varias notas mencionado un sitio llamado jailbreakme.com que abre cualquiera de los dispositivos mencionados en el título, con solo visitar desde el navegador de Safari, la página jailbreakme.com y seguir los pasos. Este hack aprovecha un problema del browser de Apple y permite instalar un programa de manejo de paquetes llamado Cydia.
Para desventura de Apple, el usar los métodos de activación en tu teléfono no se considera ilegal: Apple loses big in DRM ruling: jailbreaks are “fair use” (nota en ars technica).
Pues ya lo hice en 2 iPhones, uno con iOS 4.0.1 y otro con iPhone OS 3.1.3 e instale una aplicación para hacer internet tethering (o usar mi conexión 3G para darle acceso a mi Notebook) llamada PdaNet (que funciona maravillosamente bien).
[UPDATE]: Ahora Apple hace berrinche: Apple May Brick Jailbroken iPhones (nota de Information Week).
[UPDATE]: Para los que se preguntan como funciona esta casi “mágica” desproctección deben leer: apple security breach gives complete access to your iphone (liga a Gizmodo) donde explican como se uso un defecto en el viewer de PDF’s del IPhone para ejecutar código arbitrario, que en el caso del Jailbreak, fue benigno.
Posted in Apple, Seguridad, Tips técnicos | 1 Comment »
Monday, August 2nd, 2010
Estimados amigos de Cofradia, les escribo haciéndoles una invitación a que visiten nuestros sitios www.omegasystems.com.mx y www.esmisitio.com.mx, estamos creando video tutoriales tanto de software libre como de software propietario, con la finalidad de regresar un poco de lo que ustedes día a día nos obsequian.
El dia de hoy pueden ver un video tutorial sobre JKiwi.
(more…)
Posted in Tips técnicos, software libre | No Comments »
Friday, July 30th, 2010
Nos mandan un artículo de como utilizar protocolos basados en XMPP para crear notificaciones en tiempo real en ambientes de WEB:
Real-Time apps have been popularized by social-notification tools like Twitter and Friendfeed. With a Real-Time web app you can get website information as soon as it’s published. Learn techniques that allow you to create responsive, continually updated web applications that conserve server resources while providing a slick user experience using jQuery, XMPP and PHP.
Tags: Ajax, app, application, Javascript, jQuery, php, XMPP
Posted in PHP, Programacion, Tips técnicos, internet | No Comments »
Wednesday, July 28th, 2010
Nos mandan una lista de 10 consejos básicos para aprovechar el editor vi :
Amaze your friends with cool vi tips and tricks that will improve the efficiency of your file editing. This article takes you through ten of the less well-known vi commands that should form part of any serious vi user’s toolkit.
Tags: administration, Linux, Shell, sys admin, Ubuntu, vi
Posted in Tips técnicos | No Comments »
Saturday, July 24th, 2010
Nos mandan un artículo de como utilizar el código fuente de GIMP (GNU Image Manipulation Program) para añadir características nuevas a este:
The GNU Image Manipulation Program (GIMP) is a robust application for editing and manipulating digital images. In this article, you will learn how to get started with the GIMP code, how to build the project from the Git repositories, and how to find your way around the code tree. And you will build an example application that creates a whole new painting tool for the program.
Tags: Applications, GIMP, GNU, graphics, Linux, Opensource, redhat, Ubuntu, Unix
Posted in Programacion, Tips técnicos | No Comments »
Wednesday, July 21st, 2010
Nos mandan la primera parte de una serie de artículos sobre el desarrollo en Android, en este caso dan un ejemplo de lector de Twitter usando XML y JSON:
This article, explores techniques for handling two of the most common data formats used on the Internet — XML and JavaScript Object Notation (JSON)— on the Android platform. Learn the basics of XML and JSON and how to build an Android application that parses and displays a Twitter status-update in both formats.
Tags: android, app, application, Google, Javascript, mobile, Smartphone, xml
Posted in Programacion, Tips técnicos | No Comments »
Saturday, July 17th, 2010

Nos mandan la tercera parte de un artículo que trata sobre Hadoop (un framework para cómputo distribuido):
With configuration, installation, and the use of Hadoop in single-node and also the use in multi-node architectures under your belt, you can now turn to the task of developing applications within the Hadoop infrastructure. This article explores the Hadoop APIs and data flow and demonstrates their use with a simple mapper and reducer application.
La segunda parte esta aquí.
Tags: Apache, applcication, Hadoop, Linux, redhat, ruby, SUSE, Ubuntu
Posted in Programacion, Tips técnicos | No Comments »
Thursday, July 15th, 2010
Nos mandan un articulo de como aprovechar las facilidades de “Cloud Computing” de Amazon:
Cloud computing and Infrastructure as a Service (IaaS) are well documented, but what’s often not discussed is how to get a running Linux application into a cloud computing environment. Discover how to move an application into the cloud and take advantages of the features this setup has to offer.
Tags: Amazon, app, application, cloud computing, Linux, Ubuntu
Posted in Tips técnicos, internet | No Comments »
Thursday, July 15th, 2010
Nos mandan la liga a una serie de artículos sobre como implementar aplicaciones para para celulares utilizando HTML5:
HTML 5 is a very hyped technology, but with good reason. It promises to be a technological tipping point for bringing desktop application capabilities to the browser. In this five-part series, you will take a closer look at several new technologies that are part of HTML5, that can have a huge impact on mobile Web application development.
- Part 1: Combine HTML5, geolocation APIs, and Web services to create mobile mashups
- Part 2: Unlock local storage for mobile Web applications with HTML5
- Part 3: Make mobile Web applications work offline with HTML5
- Part 4: Using Web Workers to speed up your mobile Web applications
- Part 5: Develop new visual UI features in HTML 5
Tags: app, application, HTML5. Web, Web development
Posted in Programacion, Tips técnicos, internet | No Comments »