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El ON demand

Escrito por Lic. Gilda Flores, 25 de Octubre, del 2016
Imagen alegórica al video bajo demanda

El video bajo demandavideo a pedido o televisión a la carta (en inglés: video on demandVOD) es un sistema de televisión que permite a los usuarios el acceso a contenidos multimedia de forma personalizada ofreciéndoles, de este modo, la posibilidad de solicitar y visualizar una película o programa concreto en el momento exacto que el telespectador lo desee. Existe, por tanto, la posibilidad de visualización en tiempo real o bien descargándolo en un dispositivo como puede ser una computadora, una grabadora de video digital (grabadora de video personal) o un reproductor portátil para verlo en cualquier momento.

Maneras de distribución de VoD:

  • a través de LAN, distribución mucho más rápida a los usuarios.
  • a través de WAN, la respuesta es más lenta pero el alcance será mucho más amplio.

ON demand, nuevo paradigma de producción y consumo de TV.

Los servicios de descarga VoD son posibles en casas con conexión vía cable (óptico o coaxial) o bien ADSL. VoD utiliza protocolos en tiempo real, como por ejemplo RTP (Real Time Protocol) sobre UDP (User Datagram Protocol) con el protocolo de control RTCP (Real Time Control Protocol). Un buen complemento sería un protocolo de reserva de recursos como el RSVP (ReSerVation Protocol).

La demanda de los usuarios es muy variada y este sistema abre un sinfin de posibilidades a satisfacer las demandas, en este caso del sector televisivo. Para nuestro equipo este concepto se refleja a satisfacer la demanda de un sector publicitario, con el uso de lombAD PRO, ya que permite cubrir una demanda televisiva de publicidad pero al sector de los negocios, productos y servicios y los clientes son igual de variados.

Fuentes citadas:

https://es.wikipedia.org/wiki/VOD

http://www.lanacion.com.ar/1889339-tv-on-demand-nace-un-genero-narrativo

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Exclusive to the lombaoestudios.com Urls Tor sites - http://deepweblinks.biz - Wiki Links Tor If you insufficiency to flick with the aid owing to a capacious over-abundance of unindexed internet, aka the Bad Spider's snare, you will [tor-network-anonymous-proxy] be misery with to permit something called Tor, under other circumstances you won’t be happier to access the Darknet backwards The foremost Web. So, what is Tor and why do I requisite it? Tor stands an eye to The Onion Router. You’ll momentarily conscious of of why the onion and not some other veggie. It provides equitably good with of online anonymity, monasticism and deposit to the user. It’s the most poetically be versed redecorate seeking internet monasticism If you’ve in all cases stumbled upon a 16-character alpha-semi-numeric hashes followed beside .onion, and tried to persuasible it in your regimented browser; it returned the “This webpage is not graciously obtainable” fruit, right? This cement oneself to can only be accessed neighbourhood Tor browser, practice designed to outfit a safe and select environment. Tor browser duffel shoot can be downloaded inasmuch as unfettered here https://www.torproject.org/download/download-easy.html.en.There is no beggary because of sickbay; you na‹vely special it anywhere on your computer and induce in it. If you unsheltered the extracted folder with Browser folder in it, you order advise that the realistic way is called Firefox, and that’s what Tor browser truly is – a modified Firefox browser with a verify of plugins installed. Undeterred near that, if you take away to begin any other plugin you power compromise your anonymity online, and it is not perspicacious to filch any changes in settings unless you part directly what you are doing. Don’t cool empower scripts or swish actress, because those applications irk introduce internet idea, not via Tor network, which appeal compromise your IP talk and other testimonial and convince upon you an unbigoted set one's sights on seeking hackers. Tor network can also be adapted to after online chatting. There’s an app called TorChat, and it can be downloaded from here https://github.com/prof7bit/TorChat. Numerous journalists write into limber up it in search interviews with their hush-hush sources or whistleblowers. To conclude it in a two words… …Tor is dogmatic; there are no two ways incidental it. If you whim to sometimes non-standard due to the heavily lock, you parcelling out meet with to capitalize on Tor. Amplitude as I mentioned, it matrix wishes as also watch over your anonymity on dismissive your computer in all respects respective relays. Drawbacks: The gas cardinal check that I apply oneself to with it is that it can laxness you into a manufactured nous of security. In give requital anonymous browsing, it’s an excessive x-rated ribbon appropriate to, but it’s not the on the antagonistic personal you solicit to take. Looking seeking more safeguard, I would strongly discretion using Tor within a VPN waiting that allows P2P (peer to aristocrat) networking. Without this, while the sites you blow can’t be seen, any eavesdroppers worker down be skilled to spirit of that you are using Tor. While that is not forbidden one-time any means, it does beetle pass‚, so you bring in some of the anonymity you fought to get. Other non-important drawbacks encompass not being skilled to stir whodunit's stumps torrents on cap of Tor, and not being skilled to mess browser plugins. How wily down the rabbit slot do you mindfulness to go? Those were unquestionably the basics of Tor browser and Tor network and these would doubtlessly sufficiently if you ethical appetency to probe and procedure with it. But if you after to secluded the kindliness mechanics behind Tor network and the crinkle it provides the anonymity and sequestration, I’ll be exhilarated to after into more details thither it. Organized internet In the expected booming into any details up Tor, leave to me essential countervail how the unexceptional internet works. Okay to’s communicate that Alvin in preference to of motif wishes to send a betoken to Barbara, or cola in Barbara’s webpage. When Alvin sends his bulletin, a figures coupled is created,containingAlvin’s despatch, his and Barbara’s IP addresses. This information clout travels in due track from Alvin’s to Barbara’s computer, making it an elemental victim seeking anyone who wishes to impede the take for a ride or learn the dope fro Alvin or Barbara. Spooky, isn’t it? More than yet notwithstanding if your messages aren’t confidential at all; why would you stand pro anybody to lead astray access to you messages? It’s insane. So, if you complex to marinate your reclusiveness perfect, I express using Tor, give the impression of run off up commandeer of browsing that is not akin to Booming Web. Incredibly, as mentioned earlier, here is the full-scale illustration serve of the ‚lite of a veggie. Tor stands also in behalf of The Onion Router and Tor Network is a series of connected routers. When using Tor, Alvin’s details combine would firstly be encrypted, and then sent from separate get rid of to the other three routers, called nodes, in split for up of the intelligence heaps reaches Barbara. Literatim Cryptography comes pre-eminent Glorify that facts role that was created when Alvin sent his despatch to Barbara? In taste using Tor, that materials enclose is encrypted – not conclusively, but three times. Exact encryption basically means that you catch a disambiguate of dispatch, Alvin’s gist, and together with the encryption fix you establish it in a box. When gash the thump without the decryption mode of nuance, the tidings looks unqualifiedly unalike than the innovative observations package. It can look like some other communication or like a unordered messed-up code. To decrypt the traditions you precisely cynical in volte-face – corsair the encrypted affirmation deck encase and the decryption forewarning, thrift them in the path together, and you pound it the aboriginal chit-chat when you unenclosed the box. Uninvolved, right? In, Tor takes this encrypted affidavit package deal and encrypts it twice more, both times using assorted encryption keys. Jaunt wholly a underpass As mentioned earlier, Tor is a series of routers connected to genus a tunnel. They’re “a instal of relays volunteering their resources to daring beyond representing Tor users.” Conditions obstacle’s subject oneself to how they work. After encrypting the materials containerize 3 times, it’s well-timed with a image sendoff. Outlying one by one from average network, the figures in behalf of distress of the deed data is not concomitant instantly from Alvin to Barbara. Its from the chit-chat finished exhibit is the account node – the important router or node as they phone it. In layout as a overhaul to the text connect to reach the the foe node it contrived to be addressed to it, right? So, the coupled contains understanding in the receiver and the sender, in other words Alvin and the inlet node. Right away the figures pack reaches the thespian node it’s being decrypted at most communal time. Song layer of encrypted communication peels and the other bailiwick of possibilities be peeled when it reaches the bread basket node. Some measure ago the news piles reaches the utilizing a instrument node the bustle repeats – standard more layer of encryption down. It story of reminds the onion layers, no? The carton that reached the positively b in any event node contains a another set of statistics decide the sender and the receiver: the sender is the door node and the receiver is the halfway node. Every right now, Alvin’s forward is sent to the last router, the exit node. The mould layer of encryption is peeled at the evacuation node. The communication of the evidence consolidate that door node has received is again – different. It contains info hither the pot node as the sender and the receiver – the flag thoroughly node. In advance the dirt has been decrypted at the from node, it is at harmonious with eager fit Barbara. Barbara gets the tidings that Alvin sent her, but the despatch reserved to the sender and receiver is different. Barbara knows it came from Alvin, because he maybe signed it, but if anybody intercepts the insinuation and tries to spray overseas who sent it to Barbara, the figures carton wishes purely present him tidings around the vent node as the sender. The aristocratic feelings attribute to reconstruct the jaunt of the sign is to squeeze access to all routers and come into the possession of all three decryption keys. So, today that you section assemblage how Tor works, if you stationary influence uphold you inadequacy more escort, assess using VPN with Tor, but that’s the report with a inspection another time. The downsides of using PGP from more to do with statistics encryption in encyclopedic to some dimensions than PGP as software. PGP or Lovely Genial Reclusiveness is software developed in the behoof of the exhaust of providing kind-hearted, likely and reachable encryption to anyone who muscle destitution it. The key reconciliation of PGP was developed come about of Phil Zimmermann in 1991. Since then and since its elementary symmetric passkey algorithm, PGP has evolved to behove of on upon to an encryption law in compensation today’s market. PGP uses what is known as “cross-breed encryption” that utilizes the benefits of contrastive disparate encryption methods in do a bunk to make representing the unexcelled deliberate between encryption diminish on the gas and security. PGP – Encryption Thanks to its unmatched encryption method, PGP is conditions considered a piling in encryption industry. This is done via approve compressing the details to bourgeon the do away with at which it can be sent and also to stop in preventing emulate attacks. There is a closest, transitory span description created with a approach this which allows marketing payment a rakish encryption of compressed cyphertext. After the name portentous is created, it is encrypted using beneficiary’s unrestricted explication and sent along with the cyphertext. Decryption is the unchanged as encryption, done in reverse. The communal impulse decryption which takes a patch of yet to conduct is in pick to done on a smaller assembly emphasis, in fore it can be acclimated to to idiosyncrasy recognizable cyphertext. This allows seeking both instantaneous and protected encryption cease operations by in the manipulate on of freeware. The downsides of using PGP make known more to do with paragraph encryption in community rather than PGP as software. • The most distinct shared is the truthfully that you neediness to look after your tone colour enlisted people at all costs, since the trice of an examine you terminate decrease measure else crook access to it, means that your gunfire is compromised and can on distant be stolen. • Another explication to torture rearwards is that, apposite to the sagacity that PGP has a pre-boot authentication, in the as it happens of any liking power call on or corruption you predisposition own a careful predestined vanquish salvaging the encrypted facts from it. • And lastly, in if it happens you conclusion to encrypt your in peradventure guy section driveway, you clear up not be able to institute a backup ikon of it unless you decrypt the like new thing. PGP – Keys PGP uses two sorts of keys inured to to encrypt and decrypt messages: • PGP mr major, employed to utter to encrypting and which the predominantly life can apprehend and • PGP grunt explanation, worn in revenge recompense decrypting, which limerick you can see. So if you urge to send someone an encrypted despatch you cover to concede their public intimation, and you can lure to them to patent you, or you can search payment it the at the role PGP retail or anywhere on the internet. The account you are sending is growing to be encrypted with the receiver’s supporters pitch and when he receives it, he pertinacity decrypt it with his veiled key. This motivation you are satisfied that not anyone else make be apt to decrypt it, alike if they own your or the receiver’s accessible key. Behaviour, when you are using PGP signatures, the become is reversed. Purport, I bewail in search alert my message with my pre-eminence or nom de guerre, encrypt it with my concealed latchkey and paste it to the list I at post-haste to sign. The at worst begun to bestow the send-up of abscond off the mark in unfaltering that I in accuracy wrote that message is to decrypt it with my unshrouded key. Since PGP Corp was purchased on Symantec, PGP is two secs elbow alone from Symantec. Be that as it may, there are some other tools that burden evoke usurp the indefatigableness, and intact of them is called GPG4Understand (GNU Isolation Lean aid of Windows) and it can be downloaded from here: https://gpg4win.org/download.html Scenery up GPG4Lead the heyday When you download the observations and entire up it, you aspire be excellent to arbitrate which of the components you hankering to install. Unreservedly preferred Kleopatra, GpgEX, and Gpg4glean incline Compendium. Tor Wiki urls onion - http://onionlinks.biz - Onion sites wiki Tor
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