martes, 1 de diciembre de 2015

Un Nuevo Valor Para Las Cosas

Esto se me ocurrió comentar en un blog que hablaba de lo que estaba buscando. Sobre parámetros nuevos para darle un valor a las cosas... Y creo que podría reescribirlo aquí, a ver si a alguien se le ocurre algo que me encamine a lo que busco...


Esta sociedad de consumo, consume igual a los intelectuales: Se quedan en poesias orientales lamiéndose las heridas que no tienen tiempo de curarse.


Incluso la "vida acelerada" tiene un fin humano que los funcionarios han logrado 'descafeinar' como lo hacen con todo. Creo que cuando uno viaja en moto a mil por hora, tiene que confiar en los instintos y los reflejos mas que nunca. Pero, no funciona cuando nos empujan a movernos y no es algo que sentimos... ¿Cómo conocernos mejor?


Me preocupan esas nuevas esclavitudes que generan como preguntas en ese gran cerebro que forma toda la humanidad:

El alquiler de vientres, es algo que siempre ha existido. Pero, hoy, una pareja homosexual paga $12000 para inseminar un óvulo comprado y gestarlo en el vientre de una chica hindú-musulmana. La chica, no le cuenta nada a su familia, porque no entenderían ni creerían toda esa tecnología. Se va a Nepal a vivir por un año y vuelve para comprarse una tienda y empezar una nueva vida. Pero, a ella le pagan como mucho $3000 cuando deberían pagarle $6000. Y dicen que hay chicas que acceptan incluso $300!!. Me preocupa que si algún dia terminan con esa mafia, estos van a secuestrar chicas para seguir el negocio, imponiéndose por la fuerza, como siempre...


La mayoría de los problemas actuales surgen porque no le damos a las cosas el valor que realimente tienen. ¿Cómo hacerlo? ¿Seguiremos creyendo que si podemos pagar por algo, nos merecemos tenerlo? ¿Y podemos tirarlo cuando nos cansamos?

Tiene que existir algo que nos impida obtener las cosas hasta que no creamos que nos las merecemos... Algo que salga de nosotros mismos, sin importar lo que nos diga nadie. <(o)> Ver:

RadioLab

viernes, 19 de junio de 2015

Yo EsTube Allí

YoutubeNewswire < https://www.youtube.com/channel/UCOaMIPk5GtosYNi32liVbRg/featured > YouTube estrena una nueva publicación diaria con una recopilación de videos de aficionados sobre la actualidad. Millones de personas, suben hoy constantemente cosas que han visto solo por casualidad. Muchas tienen un contenido social interesante. Porque coinciden con alguna noticia del día. Por eso, YouTube, asociado con Newswire, logra que un equipo de editores selecciones todos los videos que tengan algún contenido relevante. Y los publican diariamente. El efecto que esto va a tener en el público, se espera similar al de los actuales blogs de noticias. Siempre hay algún periodista mencionando alguna noticia leida en un blog. Es otra herramienta para estar informado. Aquí la dirección del noticiero de YouTube ~ YoutubeNewswire: https://www.youtube.com/channel/UCOaMIPk5GtosYNi32liVbRg/featured Este es un RSS experimental que armé: http://feeds.feedburner.com/YoutubeNewswire

jueves, 27 de noviembre de 2008

WORLD SHORT FILM LABEL

A new website for good short videos. Good luck!

sábado, 26 de julio de 2008

Yahoo! UI Library: Rich Text Editor

YUI y su hijito Shine Yahoo ( http://shine.yahoo.com/write ) lucen prometedoras interfases para 'pegar' simplemente en un formulario que queremos convertir en editor RTF (colores y efectos de fuentes, etc.) Lo mejor, es que con esto, se pueden pegar imágenes escalables, y videos que se reproducen cuando se recibe el email... (ver en http://developer.yahoo.com/yui/editor/ )

sábado, 28 de junio de 2008

despuesdegoogle » Blog Archive » XAMPP: Apache + PHP + MySQL + Perl en un clic


XAMPP: Apache + PHP + MySQL + Perl en un clic
5 Septiembre, 2007 | Escrito por emiligene | Categorías: linux | | 809 lecturas

Si necesitas un servidor web completo en tu PC y no quieres arriesgarte a tener que configurar o (re)instalar archivos, XAMPP es sin duda la mejor solución.
Se trata de una versión multiplataforma (Linux, Win, Mac, Solaris) de Apache lista para usar.
Basta que descargues la versión correspondiente a tu sistema operativo y ejecutes el programa de instalación. Nada más.

En el caso de Linux:
1. Descarga del archivo comprimido (tar.gz)
2. Extraer en /opt: sudo tar xvfz xampp-linux-1.6.3b.tar.gz -C /opt
Y para iniciar XAMPP:
$ sudo /opt/lampp/lampp start

Ya puedes acceder a tu servidor en la dirección:
http://localhost
Puedes elegir el idioma y a continuación comprobar (desde el menú de navegación de la izquierda) el Status (PHP, MySQL…) y la Seguridad: verás que no se ha definido ningún tipo de contraseña.

Para asegurar tu XAMPP debes cerrarlo:
$ sudo /opt/lampp/lampp stop
Y ejecutar el programa interactivo
$ sudo /opt/lampp/lampp security
que te permite asignar contraseñas y restringir el acceso a MySQL desde el exterior.
Cuando vuelvas a arrancar XAMPP y abrir la página de localhost en el navegador, te pedirá que te identifiques. Como usuario escribes lampp y contraseña, la que definiste.

Todos los archivos que quieras publicar debes colocarlos en /opt/lampp/htdocs

miércoles, 4 de junio de 2008

Use a Floppy to Boot USB Pendrive Linux | USB Pen Drive Linux

Use a Floppy to Boot USB Pendrive Linux

If you have a system that does not support booting from a USB device, but do have a floppy drive, you can try to boot Pendrive Linux from a USB flash drive using a Grub Boot floppy disk. When using a Boot floppy with a Grub boot loader, Grub locates the USB partition and then attempts to boot loading vmlinuz and initrd.gz from the USB device.

This tutorial assumes your using the Pendrive Linux version located HERE and your USB flash drive contains a Volume label of PDL. See screenshot:

Volume Label

Pendrive Linux USB Boot Floppy Requirements:

* Linux CD/USB or installed OS
* Floppy drive/Floppy disk
* Your Pendrive Linux USB flash drive

Creating a Boot Floppy to Boot Pendrive Linux from a USB device:

1. Insert a blank floppy disk
2. Open a terminal and type sudo su
3. Type wget http://pendrivelinux.com/downloads/pdlfloppy.img.gz
4. Type gzip -dc pdlfloppy.img.gz | dd of=/dev/fd0
5. Reboot your PC and set your system BIOS or Boot Menu to boot from floppy
6. From the floppy booted Grub Menu select a boot option:

Pendrivelinux (hd0,0) if the PC has no other ATA/USB/SCSI drives

Pendrivelinux (hd1,0) if the PC has other ATA/USB/SCSI drives

Troubleshooting Notes: If you still can\'t boot, try the following:

1. press C at the Grub Menu
2. Type find /casper/vmlinuz and make a note of which drive is displayed
3. Press Esc and then Press e
4. Press e again to edit the root (hd0,0) line
5. Change the line to reflect the drive displayed in step 2
6. Press Enter, then Enter again to boot

Related posts

* USB Pendrivelinux V1 install from Windows
* Testing your system for USB boot compatibility
* Portable Qemu Persistent Pendrivelinux
* Pendrivelinux 2008 install from Windows

martes, 13 de mayo de 2008

Armando una VoIP con un router wireless barato



Where are we going from here? - The Tech Report
The Tech Report

CPUs GPUs Mobos and chipsets Multimedia Cases and power Storage Systems Miscellany Forums


Where are we going from here?
by wirelesh — 7:40 PM on May 11, 2008

How can we make voice communications available to rural communities in mountainous regions of the developing world? I have been searching out answers to this question for almost two years now. For the past several months I have been researching and blogging about some of the technological aspects, focusing specifically on long-distance WiFi to determine the feasibility and cost involved and what resources are required. I have yet to research other technologies which I expect are needed, such as VoIP, bridging with existing telephone systems, wireless mesh networking, power systems, and building towers. In the next couple years I will dig into these aspects and hope to implement my research and experiences.

Options: the improbable and the possible

Following are several technologies that have been considered for developing regions, with some of their drawbacks noted.

* Obviously the mature and well-known option for voice communication in most of the world is cellular telephone technology. However, cellular coverage is largely limited to urban areas, especially in the developing world. As Intel researchers state it (PDF), "existing infrastructure that is useful in high-density areas, where costs can be spread over many users (notably, cellular telephony), is not appropriate for sparsely populated rural regions." For example, the coverage map for Mali, Africa shows nine small pockets where cell phone service is available. The village of Gono, Mali receives coverage primarily because they happen to be close to an urban center. Nevertheless, this story is an example of how rural areas greatly value communications and are often willing to pay for it.
* Satellite connectivity offers opportunities for rural areas, and a number of mobile satellite-based solutions exist such as satellite telephone and R-BGAN. However, these incur heavy per-minute charges.
* Using VoIP over a satellite Internet (VSAT) connection is more realistic, but set up and monthly charges are high, and latency (packet delay) makes the voice quality less than desirable.
* Laying underground fiber optic cable is prohibitively expensive.
* HF, VHF, and UHF radios require special licensing and are by their nature one-to-many.

The solution I have decided to pursue is a combination of long-distance WiFi, VoIP, and mesh networking. I am not alone in thinking that economical WiFi solutions exist. Organizations such as Green WiFi and Inveneo have invested in this idea, as well as projects like AirJaldi, Nepal Wireless Networking Project, Africa Mpumulanga Mesh, Freifunk, Wireless Networking in the Developing World, and TIER (UC Berkeley) working together with Intel. While consumer-grade WiFi systems may not have the reliability, bandwidth, and quality of service generally expected by cellular service providers, communities with zero voice communication options have much lower expectations, and there are several significant advantages over traditional cellular:

* Consumer WiFi equipment is readily available and inexpensive because it is so widely used across the world.
* WiFi equipment usually has low power requirements, which means towers can be solar-powered and not require generators and/or connection to the power grid. As a consequence, initial capital investment and maintenance can be dramatically lower, and no pre-existing wired infrastructure is necessary.
* WiFi (2.4 GHz, 5 GHz) and other ISM frequencies which are unlicensed in western countries are often also unlicensed in developing countries, so government licensing fees can be dramatically lower.

Testing and lessons learned

During my time in the U.S., I set out to build a mini prototype network which included three nodes, two of which would be over 100 km (60 miles) apart, a VoIP server, and telephones so that I could test every aspect of the network which I envisioned. My first mistake was being overly optimistic, (something I'm good at in other areas as well); I was able to test only a fraction of the planned prototype network. I had planned on using exclusively Linksys routers because they are familiar to me, inexpensive, and ubiquitous. However, as I began researching software and hardware and making purchases, I discovered that, as Yahel Ben-David (of AirJaldi) expressed it, "[Linksys devices] are not advisable for that task. Too little power and worse - it uses a Broadcom radio for which we can't do many of the things we do for Atheros-based radios." This was my biggest course change, and effected many other aspects of the network I ended up testing. However, I am so thankful that I made this change before going up on the mountain.

Thanks primarily to comments made in this blog, the second most important thing I learned involved dealing with snow and ice when installing antennas on mountains. I had the expectation that these grid-type parabolic antennas would do fine in all weather conditions, but I learned (the easy way) that a radome or shelter of some sort is essential. All my testing was well worth it, although the job was a lot longer and harder than I expected. My biggest disappointment was that the 121 km (75 mile) link only achieved about 585 Kb/s throughput--plenty for a good number of VoIP phone calls, but I was hoping for several times more. Also disappointing was the fact that the 23 km link never worked as planned, and that I could not test VoIP at all over the long-distance link. Since the January testing, Intel made an exciting announcement about a router capable of greater than 6 Mb/s over 100 km. Although it is not mentioned in the article, Intel has been partnering with the UC Berkeley TIER group to design the software for this router--the very software I used in my 121 km test.

Going forward

Technology alone is not sufficient. For any project like this to work for more than a couple of years, it must have a sustainable business model. (In the long run, at least as much money needs to come in as is going out.) Village Phone, which builds on traditional cell phone technology, has been very successful in bringing communications to rural Africa. Their model, in summary, involves an entrepreneur from the village purchasing a cell phone, roof antenna, and charger with the help of a microloan. They are then able to sell minutes to villagers for a profit. The cell phone antenna must be within about 35 km of a cell phone tower and have line of sight, thus making the technological aspect of this model unworkable in many rural or mountainous regions. The business model, however, could potentially be used just as successfully with other technologies, including WiFi paired with VoIP. This area will require much more research--learning about small businesses, understanding local culture, and relating to local and national governments.

In all of this, I would love your input. I really appreciate and have gleaned a lot from the people who have taken the time to write, both in personal emails and in the blog comments. I have worked with computers for over twenty years, but my experience in most of the other areas is quite limited. With your help, this project has a much higher probability of success.

Tags: Miscellaneous Networking


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