The Open Source WRT54G

The Open Source WRT54G Story

By Aaron Weiss

November 08, 2005

Linksys gave wireless home network tweakers a gift in its Linux based router. Here's how you can get started with open source firmware upgrades.

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The story of the Linksys Wireless-G Router (model WRT54G) and how you can turn a $60 router into a $600 router is a little bit CSI and a little bit Freaks & Geeks. It’s also the story of how the open source movement can produce a win-win scenario for both consumers and commercial vendors. What’s especially exciting is that tricking out this router doesn’t require any eBay sleuthing or other hunt for some off-the-wall piece of hardware. Instead, grab it off-the-shelf. The WRT54G is stacked high in every Best Buy and Circuit City across the country and, of course, most online retailers — Amazon.com sells it for $55. It’s ubiquitous and, some would say, a diamond in the rough. Or a wolf in sheep’s clothing.

While routers used to be the domain of networking specialists, they’ve gone mainstream along with residential broadband. Commodity routers can be had for as little as – well, "free after rebate” in some cases, and often not much more. To keep them cheap, consumer-grade vendors like Linksys repackage designs from OEM vendors rather than design the  hardware and software in-house.

The tradeoff for these sub-$100 routers can be reliability, particularly in the coding of the firmware – the software “brain” that controls the router’s functions. Consumer-grade firmware may be buggy, and may be limited in functionality compared to commercial-grade routers designed for business such as those made by Cisco and SonicWall.

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The WRT54G was released in 2003 in anticipation of the 802.11g standard, with its theoretical maximum bandwidth of 54Mbps compared to 802.11b’s 11Mbps. In many respects the WRT54G is a typical wireless router – it accepts an incoming broadband link such as cable or DSL and shares it between its built-in four-port Ethernet switch and antennae for broadcasting the signal to wireless clients.

In June 2003 some folks on the Linux Kernel Mailing List sniffed around the WRT54G and found that its firmware was based on Linux components. Because Linux is released under the GNU General Public License, or GPL, the terms of the license obliged Linksys to make available the source code to the WRT54G firmware. As most router firmware  is proprietary code, vendors have no such obligation. It remains unclear whether Linksys was aware of the WRT54G’s Linux lineage, and its associated source requirements, at the time they released the router. But ultimately, under outside pressure to deliver on their legal obligation under the GPL, Linksys open sourced the WRT54G firmware in July 2003.

With the code in hand, developers learned exactly how to talk to the hardware inside and how to code any features the hardware could support. It has spawning a handful of open source firmware projects for the WRT54G that extend its capabilities, and reliability, far beyond what is expected from a cheap consumer-grade router.

Feature-Packed Firmwares

So the Linksys WRT54G can be loaded with replacement firmware with exciting new features. Which raises the question – like what?

Of course, you can expect most replacement firmware to support the same basic functions Linksys provides out of the box for this wireless router. Often these features will be more stable, in cases where Linksys’ bugs have been fixed by other developers. But that’s not what makes open source firmware so exciting.

The real deal is what the WRT54G can do, with the right replacement firmware, that you’d only expect to find on a commercial-grade router costing several times as much.

You could use the WRT54G as a repeater or a bridge. Create a wireless distribution system (WDS) or a mesh network. Run a VPN server. Or a VoIP server. Or a managed hotspot with a RADIUS server. Manage bandwidth use per protocol. Control traffic shaping. Support IPv6. Boost antenna power. Remotely access router logs. Operate the router as a miniature low-power PC, running a variety of Linux applications.

That’s just the short list. Some firmware offerings support a wide range of these features while others are more tailored to specific router applications. Some sport friendlier configuration interfaces while some are command-line driven. And because these firmware files descend from Linksys’ open-source progenitor, they are freely available.

The important caveat, of course, is that Linksys will not support alternative firmware, only their own official version. Should you run into a problem with  replacement firmware, or wind up disabling your router (which is rare but possible – stay tuned), you’ll be on your own. If you already own a WRT54G and it performs just the way you need it to, mucking around with replacement firmware might just break something that didn’t need fixing.

On the other hand, if adding enterprise features to a $60 router sounds worth the minimal risk, you don’t need any special hacker skills to get there. If you’ve already setup an off-the-shelf router before, replacing the WRT54G’s stock firmware with a feature-laden substitute is well within reach.

Choose Your Firmware

Besides Linksys’ own official firmware, there are more than a dozen varieties of firmware replacements available for the WRT54G. The most popular are named Alchemy and Talisman, released by a company called Sveasoft, and another named DD-WRT, by a guy named BrainSlayer.

Sveasoft was one of the first developers of a WRT54G firmware based on Linksys’ open source version. Many branches in the firmware family tree, including DD-WRT, are themselves based on Sveasoft’s early modification. Buffeted by the success and enthusiasm generated by their firmware offerings, Sveasoft chose to build a business model around their subsequent releases. Because of the GPL roots of the original Linksys firmware, Sveasoft cannot prevent distribution of their own modifications. As a workaround, they’ve chosen to implement a membership fee of $20 per year to access the Sveasoft “community,” wherein support and new releases are made available. Some in the open source community object to the “wall” Sveasoft has built around its free firmware, and take it upon themselves to release Sveasoft’s work into the public.

Infighting aside, Sveasoft’s older Alchemy and newer Talisman firmware  are popular and widely available. BrainSlayer’s DD-WRT is free of the Sveasoft culture war, and is itself an extremely powerful and actively maintained firmware.

Numerous other, often more specialized, firmware is also available for the WRT54G. Service providerEarthlink has released its own firmware which supports the future-proof IPv6 protocol (along with IPv4 backward compatibility). Sputnik, a vendor for large scale WiFi business networks, has even released firmware so WRT54G can be used in managing Sputnik-based hotspot deployments. Other online sources for firmware include LinksysInfo and WRT54G.net. But for most of us, the Sveasoft and DD-WRT firmwares are the most feature-rich and easiest to install and configure.

In the two years since Linksys originally released the WRT54G firmware, whether by design or not, this affordable, common router has become not just a playground for hobbyists, but an open platform for commercial business as well.

Flash Your Firmware

Over the years Linksys has released several hardware revisions of the WRT54G, from 1.0 to 5.0 and several point releases in between. What version WRT54G router you have can be determined from its serial number as per charts widely available on the firmware community sites. The serial number is printed on the outside of the box.

The reason this matters is because some versions of firmware work only with some versions of WRT54G. While the newest firmware releases for the major distributions such as Talisman and DD-WRT are compatible with most WRT54G revision, it is important to double check the particular release notes for a firmware version against the WRT54G version. A mismatch, although unlikely, is one way the router could be “bricked” – rendered unusable.

With all that said and done, let’s imagine you’ve decided to try the latest version of DD-WRT – currently v23, which supports all current versions of the WRT54G, and its speed-enhanced sibling, the WRT54GS. At theDD-WRT web site you’ll find three variations of the firmware: mini, standard, and VOIP. The DD-WRT wiki describes what is and is not included with each; suffice it to say, the standard variety is the most popular choice.

WRT54G firmware come a file with the extension .bin. Regardless of which firmware you choose, be it a Sveasoft release, DD-WRT, or any other, ultimately you are going to have in your possession a .bin file which needs to be uploaded in to the router.

Flashing the new firmware is a painless process. If you’ve ever managed your router before, you know that it is configured through a Web browser open to the router’s LAN address – by default, this is 192.168.1.1 unless you’ve changed it. Linksys routers are protected by a login whose default is a blank username with the password admin.

It takes only a few minutes to flash the router with a new firmware, but you must note these key steps.

1. Connect your PC with the .bin file to the router via Ethernet cable. Do not try to flash the firmware through a wireless link, which could be unstable and lead to a brick.
2. Reset your router’s current firmware to factory defaults. You can do this through the current firmware’s configuration pages – Administration/Factory Defaults/Yes/Save Settings. As an alternative, you can physically reset the factory defaults by pressing and holding the reset button on the back of the router for 30 seconds.
3. Now you can flash the new firmware. Connect to the router’s configuration pages with your browser, and navigate to Administration/Firmware Upgrade. Open the browse dialog to select your .bin firmware file.
4. Once you start the firmware upgrade – do nothing! Whistle. Whittle. Have a pint¹. Just don’t touch your computer or the router. Leave them alone for this intimate moment. Hacker interruptus will only produce a new baby brick.
5. After a minute or so you’ll see the upgrade progress bar complete. The router will now reset itself, and assuming everything worked, you’ll see a new page with a button marked Continue.
6. Wait at least two more minutes before clicking the Continue button. Sometimes the router presents the continue screen before it has truly cleaned up from its upgrade, and you’re better safe than sorry. Drink another pint².
7. Now click Continue. You should be forwarded to the main configuration page for your router. In the case of DD-WRT, it looks much like Linksys’ own page, except with DD-WRT markings and a whole lot more features to explore.

What if you didn’t make it this far? What if something terrible has happened, and the router did not come back to life? This is a rare but possible event. It is very unlikely if you’ve followed steps one through six. Your router may be bricked, which is somewhat like being dead, except with the possibility of resurrection.

First, try to reset the router to factory defaults by pressing and holding the reset button on its rear for 30 seconds. When and if it relights, try to connect to it with your browser. You may be lucky and have a chance to start the process over again. There are several more tricks you can try to revive a bricked router, also known as recovering from a bad flash. In this case, you want to consult the WRT54G Revival Guide.

¹ Something non-alcoholic, of course.

² Try a refreshing mixture of Orangina and a twist of lime.

Now What?

Your router has a new brain. From here you’ll want to explore the configuration pages and follow any guides or documentation available for the firmware you’ve installed. Unless you already know exactly which configuration pages you want to change, your best bet is to first identify your goals with the router. Do you want to use it to setup a WDS? Or configure it as a wireless client to connect a remote wired LAN to a remote wireless AP? There are myriad possible goals.

Explore the user community for your firmware where there may already be detailed guides for configuring the router for the functionality you want, or experienced voices to help you troubleshoot.

Originally published on .

http://www.wi-fiplanet.com/tutorials/article.php/3562391

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Niveles de pH y el cáncer

Niveles de pH y el cáncer, los alimentos alcalinos y ácidos

El cuerpo humano es una máquina increíble. Una de las funciones más importantes de este recipiente es su capacidad para regular sus propios niveles de acidez en un grado muy fino. Las células sólo funcionarán normalmente dentro de límites relativamente estrechos de pH. El cuerpo regula su pH mediante el ajuste constante de procesos fisiológicos, como la función respiratoria y renal.
Sin embargo, los alimentos que usted come puede jugar un papel en el aumento o la disminución del pH del cuerpo, y algunos alimentos pueden ser más alcalinos que otros. Un cuerpo ácido es un imán para las enfermedades, afecciones como el cáncer y el envejecimiento. Comer más alimentos alcalinos ayuda a cambiar el pH del cuerpo y oxigena el sistema, mantener su cuerpo sano y que funcione correctamente, previene del cáncer, y de muchas otras enfermedades.

Definición

pH, o “potencial de hidrógeno”, es una medida de la concentración de iones de hidrógeno, una medida de la acidez o alcalinidad de una solución.
Cuando una solución es alcalina, o tiene una alcalinidad, significa que tiene la capacidad de neutralizar los ácidos. La alcalinidad se expresa como un número de pH, en una escala de 0 a 14. Un pH de 7 es neutro, ni ácido ni alcalino. Una sustancia con el nivel de pH entre 7 y 14 es alcalina, y se llama base (o base). Cuanto más cerca esté una sustancia a un pH de 14, más alcalina es. Los alimentos sustancialmente están hechos de agua, por lo que también tienen un pH que se puede medir. Debido a que el cuerpo humano es más líquido, también tiene un pH, que se mide a través de la sangre.
Nuestra pH en la sangre tiene una gama muy estrecha de alrededor de 7,35 a 7,45. Si el pH de nuestro cuerpo se desvía de esta gama, enfermará o comenzará a mostrar síntomas de enfermedad. Si nuestro pH en la sangre cae por debajo de 6,8 o por encima de 7,8, las células dejan de funcionar y seguiría la muerte rápidamente.
Un pH ácido puede ocurrir por el estrés emocional, sobrecarga de toxinas, las reacciones inmunes o cualquier proceso que prive a las células de oxígeno y otros nutrientes. Obviamente, una dieta que es muy ácida puede cambiar los niveles de pH hasta cierto punto, también. El cuerpo trata de compensar un nivel de pH ácido mediante la utilización de minerales alcalinos que ha almacenado. Si la dieta no contiene suficientes minerales para compensar, se producirá una acumulación de ácidos en las células, privándolas de oxígeno.
Esto puede disminuir la capacidad del organismo para absorber minerales adicionales y otros nutrientes, disminuye la producción de energía en las células, disminuye su capacidad para reparar las células dañadas, disminuye su capacidad de desintoxicar los metales pesados, y permite que las células tumorales crezcan y proliferen, y lo hacen más susceptibles a la fatiga y la enfermedad.
La dieta americana es alta en productos ácidos como las carnes, quesos, cereales y alcohol y por lo general muy baja en alimentos alcalinos como los vegetales verdes, frutas, especias y cultivos probióticos (como los que se encuentran en el yogurt real). Además, nos hemos convertido en una sociedad que está literalmente consumada con jarabe de maíz alto en fructosa, harinas refinadas, café, cigarrillos, productos farmacéuticos y los edulcorantes artificiales – de los cuales todos son muy ácidos en el cuerpo humano. Una de las maneras más fáciles y rápidas para ayudar a corregir un nivel ácido de pH es controlando la dieta y el estilo de vida.
Para mantener la salud, la dieta debe consistir de un 60% de alimentos de formación alcalinos y el 40% en alimentos ácidos. Para restaurar la salud, la dieta debe consistir de un 80% de alimentos de formación alcalinos y el 20% de alimentos ácidos.

Saludable, Frutas y Verduras forman alcalinos

Algunos frutos son muy alcalinos
– Manzanas, albaricoques, (de alto índice glucémico) aguacate, plátanos, moras, melón, coco, cerezas real, dátiles e higos, peras, naranjas, piña, melocotones, uvas pasas, uvas, pomelo, melón, limones y limas (cítrico ácido? más información sobre esto en breve), nectarinas, frambuesas, tomate, mandarina, frutas tropicales, sandía y fresas.
Vegetales con alta alcalinidad
– Incluye la mayoría de las verduras verdes, como los espárragos, el diente de león, hierba de trigo, alfalfa, algas marinas, algas y sal, berros, brócoli, espinaca, apio, judías verdes frescas, boniato, calabaza, guisantes, pimientos, cebolla, lechuga, setas, coles de Bruselas, berenjena, ajo, escarola, pepino, repollo, zanahoria, hinojo, remolacha, castañas, almendras, chile, tamari, el jengibre y la canela.
Otros alimentos con alta alcalinidad
Otros productos alimenticios son alcalinizantes o medios alcalinos, una vez que se comen. Alcalinizante edulcorantes incluyen el jarabe de arroz, jarabe de arce y sin procesar stevia. El mijo, el polvo de proteína de suero de leche, almendras, castañas y queso de soja fermentado son proteínas alcalinizantes. Bebidas alcalinizantes incluyen agua pura o mineral, leche de almendras, caldo de verduras, no endulzado leche de soya, jugo de vegetales frescos, agua de limón y té de hierbas. Los limones son naturalmente ácidos, pero después de la digestión se vuelven alcalinos. Tenga en cuenta que a las carnes le ocurre lo opuesto, mientras que son alcalinos antes de la digestión se convierten en ácido después.

Alimentos Ácidos

(Se deben evitar o consumir con moderación con abundantes alcalinos)
Maíz, arándanos, frutas en conserva, la cebada, el arroz, casi todos los granos, incluyendo trigo y todas las harinas (pan, pastas, macarrones, etc), el centeno, la avena, la mayoría de los frijoles y las legumbres (frijoles pinto, verde, negro, pollo, etc ), quesos duros / procesados, los cacahuetes y los elementos asociados, casi todas las proteínas animales y peces, y por supuesto, el alcohol, azúcares, fármacos (incluyendo medicamentos de venta libre), y los productos del tabaco. Usted puede encontrar una lista mucho más profundida y larga de alimentos ácidos y alcalinos aquí.
El café es una bebida ácida (con un pH alrededor de 4), pero con moderación, se ha encontrado que puede ayudar a prevenir ciertos tipos de cáncer y enfermedades, además de tener un efecto desintoxicante en la sangre. Por lo tanto, asegúrese de tener un vaso de leche o zumo de naranja con el café de la mañana y experimente los beneficios saludables de las vitaminas, minerales, proteínas, alcalinas y acidez del café!
Las principales fuentes de acumulación de ácido son:
1.) El metabolismo y/o desglose incompleto (oxidación) de los productos alimenticios o metabólicos “residuos” producido como subproducto de actividad celular. Durante la respiración celular y la producción de energía, los ácidos producidos como parte de productos de “desechos”. Estos ácidos deben ser “equilibrados”, neutralizados, o eliminados por el cuerpo y los sistemas de desintoxicación a través de los riñones, los pulmones, el hígado y la sangre.
2.) El consumo de ácido presente en el suministro de alimentos, aire y agua. Las emisiones de nitrógeno de los automóviles y las plantas industriales, colorantes alimentarios, aerosoles, ceras, conservantes, aditivos alimentarios, los edulcorantes artificiales, los fertilizantes, contaminantes del agua, e incluso cloruro y fluoruro en el agua del grifo son sólo algunos de los productos químicos altamente ácidos que son ingeridos por millones de personas cada día. ( Fuente: Michael Lam, MD, MPH – http://www.drlam.com/articles/acidosis.asp )

Los efectos de un ambiente ácido

La acumulación de ácido puede provocar acidosis, que a su vez afecta al hígado, riñón, corazón, la insulina y la regulación de la salud celular. Estos problemas pueden llevar rápidamente a un accidente cerebrovascular, infarto de miocardio, aneurisma, problemas cardiovasculares, la osteoporosis, la obesidad y la hipertensión arterial.
La acidosis generalmente altera los lípidos y ácidos grasos, los cuales están involucrados en la función nerviosa y cerebral. Esta alteración provoca problemas neurológicos como la esclerosis múltiple, MD, así como problemas con el equilibrio hormonal en el sistema endocrino.
Es muy probable que un pH ácido, a partir de una dieta desequilibrada, produzca una condición que estimula la respuesta genética predeterminada a la inanición y el hambre. Cuando esto sucede, el cuerpo comienza a acumular todas las calorías consumidas y la almacena como grasa, por temor a que se muera de hambre y no sabe dónde ni cuándo tendrá su próxima comida. Para contrarrestar esto, muchos nutricionistas y atletas recomiendan el consumo de numerosas comidas pequeñas y saludables durante todo el día con el fin de mantener al cuerpo feliz y seguro de que seguirá siendo alimentado. Cuando el cuerpo está en este cómodo estado y sin preocupaciones, estará encantado de quemar esas calorías (un aumento del metabolismo), lo que ayuda a adelgazar la cintura, crear masa muscular y evitar muchos de los problemas que se asocian con la acidosis, la obesidad y la regulación de insulina.
pH y el cáncer
Dos de los principales factores que conducen al cáncer son un pH ácido y la falta de oxígeno. Como tal, ¿podríamos ser capaces de manipular estos dos factores con el fin de prevenir y controlar el cáncer?.
Sabemos que el cáncer necesita un ambiente ácido y bajo en oxígeno para sobrevivir y prosperar. La investigación ha demostrado que los pacientes terminales de cáncer tienen un nivel de acidez 1.000 veces superior al de personas sanas. La gran mayoría de los pacientes terminales de cáncer tiene un pH muy ácido. ¿Por qué es esto?.
La razón es simple. Sin oxígeno, la fermentación de la glucosa se convierte en ácido láctico. Esto hace que el pH de la célula baje a 7,0. En más casos de cáncer avanzado, el nivel de pH cae más de 6,5 e incluso puede caer a 6,0, 5,7 o inferior. La verdad básica es que nuestros cuerpos simplemente no pueden luchar contra las enfermedades si nuestro pH no está bien equilibrado.
Conclusión
¿Es posible minimizar el potencial del cáncer? Estoy firmemente convencido de ello. Mientras que los niveles de pH no son la única respuesta, controlando el ácido y aumentando los niveles alcalinos mejorará considerablemente sus posibilidades de luchar contra las toxinas, permitiendo que las células sanas puedan prosperar y así evitar los ambientes bajo en oxígeno, donde prolifera el cáncer. Al mantener un nivel de pH saludable, te darás cuenta de que estás haciendo una gran cantidad de cambios en la dieta saludable – evite el jarabe de maíz alto en fructosa, refrescos abrasivos (! Coca-Cola tiene un nivel de pH de 2,2), aumentando el consumo de verduras verde y frutas frescas y hacer nuevas elecciones de estilo de vida, como evitar fármacos, cigarrillos y mucho café o alcohol.
Echa un vistazo a la siguiente tabla para identificar el “nivel de pH” de diferentes alimentos. Cada uno tiene asignado un número que refleja su potencial relativo aproximado de alcalinidad (+) o acidez (-) existentes en una onza (28.35g) de los alimentos. Cuanto mayor sea el número, mejor es para usted y lo mejor que puede comer.

Alimentos alcalinos saludables -Coma muchos de ellos! Verduras Alfalfa hierba +29.3 Espárragos +1.3 Hierba de cebada +28,1 Coles de Bruselas +0.5 Lechuga repollo, fresca +14,1 Coliflor +3.1 Pimienta de Cayena +18.8 Apio +13,3 Cebollino +8.3 Consuelda +1.5 Pepino fresco, +31.5 Diente de león +22.7 Hierba Perro  +22,6 Endibia, frescas +14.5 Francés judías verdes cortadas +11.2 Ajo +13,2 Repollo Verde Cosecha de diciembre  +4.0 Repollo Verde, la cosecha de marzo de +2,0 Hierba Kamut  +27.6 Canónigos +4.8 Puerros (bombillas) +7.2 Lechuga +2.2 Cebolla +3,0 Guisantes, frescos +5,1 Guisantes, maduro +0.5 Col Roja +6.3 Los tallos de ruibarbo +6.3 Savoy Cabbage +4.5 Afeitado hierba +21.7 Sorrel +11.5 Brotes de soja +29,5 Espinaca (excepto la de marzo) +13,1 La espinaca, la cosecha de marzo de +8,0 Semillas germinadas Chia +28.5 Brotado semillas de rábano +28.4 Paja del césped en +21,4 Berro +7.7 Pasto de trigo +33,8 Repollo blanco +3.3 Zucchini +5.7 Vegetales de Raíz Remolacha +11.3 Zanahoria +9.5 Rábano +6.8 Colinabo +5.1 Patatas +2.0 Rábano rojo +16.7 Colinabo +3.1 Rábano Verano Negro +39.4 Nabo +8.0 Rábano blanco (primavera) +3.1 Frutas Aguacate (proteína) +15,6 Limón fresco +9.9 Limas +8.2 Tomate +13,6 Granos orgánicos No almacenados y Leguminosas Alforfón Grañones +0.5 De soja granulada (Frijoles de soya baja) +12,8 Lentejas +0,6 Frijoles de +12.0 Harina de soja +2,5 Lecitina de soja (Pura) +38,0 Las nueces de soya (frijoles de soja remojados, luego secarse) +26,5 Soja, +12,0 Espelta +0.5 Tofu +3.2 Los frijoles blancos (Habichuelas Blancas) +12,1 Nueces Almendras +3.6 Las nueces del Brasil +0.5 Semillas Las semillas de alcaravea +2.3 Las semillas de comino +1.1 Semillas de Hinojo +1,3 Semillas de lino +1,3 Semillas de calabaza +5.6 Semillas de sésamo +0.5 Semillas de girasol +5,4 Trigo Kernel +11.4 Grasas (frescas, aceites prensados ​​en frío) El aceite de borraja +3.2 Aceite de onagra +4.1 Aceite de semilla de lino +3,5 Los lípidos marinos +4.7 Aceite de Oliva +1.0

Alimentos que sólo se debe consumir moderadamente Frutas (En la primera temporada, para la limpieza solo o con moderación) Albaricoque -9,5 Bananna, madura -10,1 Bananna, inmaduros +4.8 Grosellero Negro -6,1 Blueberry -5,3 Melón -2,5 Cereza, Sour +3.5 Sweet Cherry, -3,6 Coco, dulce +0.5 Arándano -7,0 Grosella -8,2 Dátiles -4,7 Zumo en polvo -2,4 Grosella, maduro -7,7 Uva, madura -7,6 Pomelo -1,7 Ciruela Italiana -4,9 Mandarina -11,5 Mango -8,7 Naranja -9,2 Papaya -9,4 Melocotón -9,7 Pera -9,9 Piña -12,6 Frambuesa -5,1 Grosella -2,4 Escaramujo -15,5 Fresa -5,4 Mandarina -8,5 Sandía -1,0 Ciruela amarilla -4,9 Granos No Almacenados Arroz integral -12,5 Trigo -10,1 Nueces Avellanas -2,0 Nueces de Macadamia -3,2 Nueces -8,0 Pescado Peces de agua dulce -11,8 Grasas Leche de coco -1,5 Aceite de girasol -6,7

Alimentos ácidos insalubres -Trate de evitar! Carne, aves y pescado Carne -34,5 Pollo (a -22) -18,0 Huevos (a -22) Hígado -3,0 Peces de océano  -20,0 Carnes Órgano -3,0 Ostras -5,0 Carne de cerdo -38,0 Ternera -35,0 Leche y productos lácteos Suero de mantequilla +1.3 Crema de -3,9 Queso duro -18,1 Leche homogeneizada -1,0 Quark -17,3 Pan, galletas (granos almacenados / masa Resucitado) Pan de centeno -2,5 Galletas blancas -6,5 Pan Blanco -10,0 Pan integral -4,5 Toda la comida-pan -6,5 Nueces Anacardos -9,3 Maní -12,8 Pistachos -16,6 Grasas Mantequilla -3,9 Aceite de maíz -6,5 Margarina -7,5 Dulces Edulcorantes artificiales -26,5 Jarabe de malta de cebada -9,3 La remolacha azucarera -15,1 jarabe de arroz -8,7 Chocolate -24,6 Dr. Bronner’s Barley Cebada Azúcar Jugo de Caña seca -18,0 Fructosa -9,5 Miel -7,6 Malta Sweetner -9,8 Leche Azúcar -9,4 Melaza -14,6 El azúcar turbinado -9,5 El azúcar blanca -17,6 Condimentos Salsa de tomate -12,4 Mayonesa -12,5 Mostaza -19,2 Salsa de soja -36,2 Vinagre -39,4 Bebidas La cerveza -26,8 Café -25,1 Jugo de frutas azucaradas Jugo de fruta, envasados, Natural -8,7 Licor -38,7 Té (Negro) -27,1 Vino -16,4 Misceláneo Los alimentos enlatados Los alimentos cocinados en el microondas Los alimentos procesados

Traducción: elnuevodespertar
Fuente: truthistreason.net

RemoteLock Wi-Fi Door Lock

Description

The WiFi enabled RemoteLock enables you to monitor and control access to your property from any internet connected smartphone or computer. You can lock or unlock your door remotely. With the RemoteLock you always know who enters your property and exactly when.

With the RemoteLock, you control access to your door from your phone or computer.  Allows you to lock or unlock your door from your phone and receive text alerts when codes are used. You can issue new codes or delete codes from your computer or phone.  The RemoteLock also gives you peace of mind.  If you are not sure if you locked the door when you left, you can lock it from your phone.

You may even give temporary codes to neighbors or guests which is great if you are away and need your pets fed or plants watered.  You create a temporary code that lasts for the week.  This is also the ideal lock for rental properties.  Issue a code that lasts for a week, then it expires when the rental is done.

The RemoteLock is easy to setup and easy to use.  The RemoteLock connects directly to WiFi routers to allow it to be controlled over the internet.  It also comes with 2 back up keys for emergencies.

Features Connect to the lock using your exisiting wireless router, no extra hardware needed View access history, in real time, from your LockState Connect account Add or delete users and lock or unlock your door remotely Up to 200 user codes available Set scheduled access times for users (Eg. M-F, 9-5) Lockout functionality One-touch lock button to quickly lock door on the way out Up to 10 temporary guest codes can be programmed at one time Illuminated keypad for easy viewing in the dark Reversible lock works on both right & left-handed doors 2 emergency override keys included Requires a service fee starting at $0.99 a month (See options below) Backset adjusts to 2 3/8 and 2 3/4 inch Download RemoteLock User Manual Specifications: Lock Weight: 3 lbs Power Source: 4 AA Alkaline Batteries Keypad: Lighted keypad Handle: Reversible thumb turn Door Thickness: 1 3/8" to 2" Keyway: Schlage C6 Temperature: -20° to 120°F (-34° to 50°C) Front Lock Height: 5" Front Width: 3" Back Height: 7 1/2" Back Width: 2 3/4" Key Hole to Top of Lock: 2 3/7" Low Battery Warning: 4.0V Available in Satin Nickel, Polished Brass and Oil Rubbed Bronze Finish 1 year warranty http://www.rewci.com/remote-lock-wifi-deadbolt-door-lock.html?gclid=CPKgs53p0cUCFYIXHwodUX4AZg

How to boost my wifi range

The first thing that should learn is that WiFi transmission has evolve and having that in mind you might has something obsolete trying getting the most of it; 

the following picture will show how advance the WiFi transmission is up to,and if you have a wifi router from 5 years ago is already past due on technology and will give you more hard time than what you can get from it, (dropping connectivity,and slow performance)

Here is some rules that you must keep in mind if you would like to have a decent wifi range on your home

Top 10 Ways to Boost Your Home Wi-Fi

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• WI-FI
• INTERNET
• SPEED
• TWEAKS
• DIY
• DIY CREATIONS
• ROUTERS
• HARDWARE
• FEATURE
• TOP

8/04/12 8:00am

Wi-Fi is one of the most useful and important parts of using a computer, and yet it's also one of the most frustrating. If you're plagued by slow speeds, bad reception, and other Wi-Fi issues, here are 10 ways you can power up the Wi-Fi in your home.

10. Use the Latest Wi-Fi Technologies

One of the best ways to make sure your network is as fast and reliable as possible is to use up-to-date hardware. We've gone through the basics of router hardware before, so check out the first lesson of our networking Night School for the full lowdown. The main thing you need to know: Wireless A, B, and G are old and slow, and wireless N will give you the fastest speeds around. Note that you'll need both a wireless N router and a wireless N card in your computer if you want the full speed boost.

Know Your Network, Lesson 1: Router Hardware 101

Home networking is something we all have to deal with, but it can be confusing as heck. This week,…Read more

9. Find the Perfect Spot for Your Router

Routers may be ugly, but that doesn't mean you should hide them behind the TV cabinet. If you want the best signal, you'll need it out in the open, free of any walls and obstructions. Point the antennas vertically, and elevate the router if you can (one reader found that his attic was the perfect spot). Lastly, make sure its in the center of your house, so you have the best coverage possible throughout your home. Photo by Oliver Bruchez.

Why Is Wi-Fi Coverage So Bad in My House, and How Can I Fix It?

Dear Lifehacker, For reasons unknown to me (Physics? Global warming? Witchcraft?), my router's …Read more

8. Find the Right Wireless Channel

If you have neighbors, their routers may be interfering with yours and causing the signal to degrade. Wireless routers can operate on a number of different channels, and you want yours on a channel with as little interference as possible. Use a tool like Wi-Fi Stumbler or Wi-Fi Analyzer to find the perfect channel in your house. We have more detailed instructions on how to do that here.

WiFi Stumbler Scans Local Wi-Fi to Find an Interference-Free Channel

If you've been having trouble with your wireless signal the culprit might be interference from …Read more

Some smart phone device can have be downloaded from the store or market place app that can do the job for you

7. Get Rid of Interference from Other Appliances

Other routers aren't the only thing that can cause interference. Cordless phones, microwaves, and other appliances can muck with your signal as well. Buying a dual band router can help with this, but you can also buy cordless phones on other bands too. If you don't want to buy new hardware, you can always try moving your router further away from interfering appliances, too. Photo by looseid.

Lifehacker Readers' Solutions for Your Home's Bad Wi-Fi Coverage

We recently detailed a few solutions for bad wi-fi household coverage, and our commenters had a lot …Read more

6. Thwart Wi-Fi Thieves with Better Security

Even if your router has a password, it can be really easy to hack. There are easy ways to find out if someone is stealing your Wi-Fi, but the best thing to do is just lock them out with better security. Using a WPA password is absolutely essential, but even those can be cracked pretty easily—so see our security recommendations here to fully protect your network from prying eyes.

How to Crack a Wi-Fi Network's WEP Password with BackTrack

You already know that if you want to lock down your Wi-Fi network, you should opt for WPA…Read more

5. Control Bandwidth-Hogging Applications

If someone in your house regularly video chats, plays online games, torrents files, or uses services like Netflix, they may be hogging bandwidth and making the internet slower for everyone else. Luckily, you can use something called Quality of Service—or QoS for short—to reign in those bandwidth hogs. With QoS, you can prioritize certain applications (say, video chat) over others (like video games) so the most important applications get the bandwidth they deserve. For more info, check out our full guide to setting up QoS on your router. Image by Juan Pablo Olmo.

Ensure a Fast Internet Connection When You Need It

Click to viewYour internet connection is an indispensable part of your life, but between…Read more

4. Increase Wi-Fi Range with DIY Tricks

If your router still won't reach far enough, you can extend its range with simple DIY tricks. Our favorite is the Windsurfer tin foil hack, thougn you can also use an old beer can or a cooking strainer to extend your router's range. The results won't necessarily be mind blowing, but you should be able to eke a bit more distance out of your Wi-Fi network with minimal effort.

Boost Your Wireless Signal With a Homemade Wifi Extender

It's amazing what a few sheets of tinfoil can do for the strength of your wireless signal. As…Read more

3. Boost Your Router's Signal with a Bit of Hacking

Another great way to extend your range is to hack your router and install the DD-WRT firmware. Not only will it give you a ton of great security features and other enhancements, but it gives you the option to boost your transmitting power. This can be dangerous for your router, but most routers can handle an increase up to 70 mW without causing any issues, and you'll be able to access your network from much further away!

Turn your $60 router into a $600 router

Of all the great DIY projects at this year's Maker Faire, the one project that really caught…Read more

2. Turn an Old Router Into a Wi-Fi Repeater

If that still doesn't help, you'll need to get a range extender for your home. They aren't super expensive, but if you don't want to pay for another piece of hardware, you can actually turn an old wireless router into an extender with the aforementioned DD-WRT firmware. Note that you may not be able to get as fast of a connection through your extender, but if you just can't seem to get Wi-Fi on the edge of your house, this'll get the job done on the cheap.

1. Set Your Router to Reboot on a Schedule

If you're one of the many folks that has to reboot their router every so often so it doesn't drop out, there is a solution. You can run a few tests to make sure the problem isn't caused by heat, old firmware, or excess downloading, but an easy way to solve the problem is just automatically reboot it once a day or so. You can do this with DD-WRT or just a regular old outlet timer. When you're done, you shouldn't have to reboot your router so often (which is great if your router's all the way up in the attic).

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