Eish…. Q fdp de blog Porque as ideias são para partilhar

January 29, 2009

Relembrando o Humor – Parte 2

Filed under: Pensamentos — admin @ 3:02 pm


Isto não será incentivo a pirataria?

Mas para que? No melhor dos casos, e descarregando apenas conteudo legal, o utilizador iria bater no PUA ou qq coisa equivalente….

… não tem muita logica… digo eu…. acho…

Ps: O site acima indicado é da responsabilidade, autoria e exploração da TVcabo….

Como prometido Google & Friends lança software de teste

Filed under: Pensamentos — admin @ 10:13 am

Olá cambada,

Finalmente a google desovou para o mercado o prometido software para testar a neutralidade da net.

Desde o p2p ao dns hijacking as tools testam tudo.

Aqui vai o link onde as podem obter: http://measurementlab.net/

Ps: atenção que qualquer piada sobre Methlab é perfeitamente escusavel (quando entrarem no site precebe)

Noticia original in goodgearguide:

Google and a group of partners have released a set of tools designed to help broadband customers and researchers measure performance of Internet connections.

The set of tools, at MeasurementLab.net, includes a network diagnostic tool, a network path diagnostic tool and a tool to measure whether the user’s broadband provider is slowing BitTorrent peer-to-peer (P-to-P) traffic. Coming soon to the M-Lab applications is a tool to determine whether a broadband provider is giving some traffic a lower priority than other traffic, and a tool to determine whether a provider is degrading certain users or applications.

“Transparency is our goal,” said Vint Cerf, chief Internet evangelist at Google and a co-developer of TCP/IP. “Our intent is to make more [information] visible for all who are interested in the way the network is functioning at all layers.”

The tools will not only allow broadband customers to test their Internet connections, but also allow security and other researchers to work on ways to improve the Internet, Cerf said. Current Internet performance tools “are geeky to the extreme,” he said during a Washington, D.C., forum on the M-Lab tools.

The M-Lab project, launched Wednesday, comes after controversy over network management practices by Comcast and other broadband providers. Earlier this month, two officials at the U.S. Federal Communications Commission questioned why Comcast, the largest cable modem provider in the U.S., was exempting its own VoIP (voice over Internet protocol) from traffic congestion slowdowns, but not offering the same protections to competing VoIP services.

The FCC letter to Comcast came after commissioners ruled in August that the broadband provider’s decision to slow some P-to-P traffic violated the agency’s network neutrality rules prohibiting broadband providers from blocking or slowing Internet traffic or applications. News reports in late 2007 unveiled Comcast’s practice of slowing some BitTorrent traffic. Comcast later said it was slowing traffic only at times of peak congestion, but the FCC and other groups disputed that the traffic management was limited.

Comcast declined to comment on the M-Labs effort.

The set of tools will allow broadband customers to measure their providers’ performance, said Michael Calabrese, director of the Wireless Future Program at the New America Foundation, a think tank involved in the M-Lab project. Consumers “deserve to be well-informed” about their broadband performance, he said.

Some of the M-Lab tools have already been released, but participants in the project plan to further develop the tools and host them on servers around the world, added Sascha Meinrath, research director at the Wireless Future Program. All the M-Lab tools will be released under open-source licenses, allowing others to modify and improve them, he said.

People on either side of a debate on whether the FCC or U.S. Congress should develop network neutrality rules should welcome the tools, said Ed Felten, director of the Center for Information Policy and a computer science and public policy professor at Princeton University. It took months for policymakers to gather solid information on Comcast’s network management practices, but net neutrality advocates can use the tools if they suspect broadband providers of interfering with traffic.

“If you believe that network neutrality government regulation is not needed, if you believe that the market will handle this … then you should also welcome Measurement Labs,” Felten said. “What you are appealing to is a process of public discussion … in which consumers move to the ISP [Internet service provider] that gives them the best performance. It’s a market that’s facilitated by better information.”

However, one ISP industry source, who asked not to be identified, questioned whether the tools would accurately point to the cause of broadband problems. Spyware or malware on computers can affect browser performance, and problems with the wider Internet can cause slowdowns, the source said.

The M-Labs partners seemed to bypass broadband providers when putting together their tools, the source added. “It may appear that issues that are occurring off an ISP’s network may be the ISP’s problem,” the source said of the tools. “It’s important for groups like this to collaborate, not only among themselves, but also with ISPs.”


January 26, 2009

Relembrando o humor….

Filed under: Pensamentos — admin @ 3:06 pm

É o bixo é o bixo….


Vou tentar descobrir em que país isto se passa …. não deve cá certamente

January 19, 2009

Como combater o TS na Zon… parte 2

Filed under: ISP's,P2P,Pensamentos — admin @ 2:27 pm

Olá a todos,

No seguimento do meu ultimo post aqui vão as receitas para combater o TS da Zon.

Estas receitas são para protocolos bittorrent:

Currently both Azureus and uTorrent included this new form of encryption (specs) in their latest Beta’s. The fact that these two clients are actively working together to implement this new feature is promising and will make this form of encryption the new standard since the users of these two clients cover the majority of all BitTorrent users.

There are two “encryption modes” available.

The 2 different payload encryption methods plaintext transmission and RC4 provide a different degree of protocol obfuscation, security and speed. Where the plaintext mode only provides basic anti-shaping obscurity, no security and low CPU usage the RC4 encryption obfuscates the entire stream and not only the header and adds some cryptographic security at the price of spent CPU cycles.

The question now is.. Does it work? and how effective is it? If it works it will definitely offer a great solution to all BitTorrent users who suffer from traffic shaping ISP’s.

Bram Cohen, the creator of the BitTorrent protocol reacted quite negatively on these new developments. He questions the need for encryption since only a few ISP’s are actively shaping traffic. Among other things he also fears incompatibility between clients and increased cpu usage. Although these arguments can be countered quite easily, developers should keep them in mind.

But the fact is, if this new encryption method is launched successfully it will be a huge step forward for the BitTorrent community.

In torrentfreak

Na pratica:

Saquem o ultimo cliente de bittorrent que usam. Provavelmente já está incluído um layer de encriptação de tráfego.

Uma pequena nota: utilizem para a transferência a vossa porta 443 TCP. Tipicamente esta porta é utilizada para https e não é bloqueada tao agressivamente.

Ps: Este blog não é para incitar a pirataria. Existem coisas legais para sacar nas redes P2P. E algumas bem melhores que as pagas.  Diz não á pirataria.


Como combater o TS na Zon… parte 1

Filed under: ISP's,P2P,Pensamentos — admin @ 2:15 pm

Olá a todos,

Tenho visto por essas interweb’s muita gente a perguntar como combater o TS da ZON para o P2P.

Tendo em atenção esse grito de ajuda, e alimentando o facto que não posso com eles nem com molho de ostras aqui vão as receitas:

Para eMule, aMule, edonkey2000 e em inglês:

The eMule team has released a new version of eMule, which supports protocol obfuscation, probably inspired by the success of encryption in several BitTorrent clients. This feature, which causes eMule’s communication to appear as random data and makes it more difficult for ISP’s to throttle eMule users.

emuleThe new version has the option of only connecting to clients that support this feature but it has the option of connecting to all clients as well.

Protocol obfuscation has been the most requested feature by eMule users for several months. It has been reported that Brasil Telecom has been aggressively throttling traffic generated by eMule. This has made eMule practically unusable for thousands of Brazilian’s and although NeoMule, an eMule mod, added protocol obfuscation several months ago it only partially alleviated the problem.

NeoMule users represent a very small percentage of the ed2k network and although their protocol obfuscation feature works well, it only works if the users it connects to are also using NeoMule.

Recently, more and more ISP’s have began throttling P2P protocols. Numerous ISP’s have targeted the BitTorrent protocol and in response Azureus, BitComet and uTorrent have implemented protocol encryption.

Overall, their protocol encryption feature has been effective but Allot Communications claims that they have developed technology that allows ISP’s to specifically target and throttle encrypted BitTorrent traffic.

It’s clear that eMule’s protocol obfuscation feature will be well received by the eMule community but it remains to be seen how long it will take for ISP’s to figure out a way to throttle eMule’s traffic once again.

in p2pnet

Para os que tiveram preguiça de ler:

Saquem daqui o cliente Neomule: http://sourceforge.net/projects/neomule/
Actualizem a vossa protecção do peerguardian.

Leenchem até cair para o lado… coisas legais atenção 🙂

Ps: Qualquer cliente emule que suporte protocol obfuscation da para dar a volta a coisa.

Ps2: Este blog não é para incitar a pirataria. Existem coisas legais para sacar nas redes P2P. E algumas bem melhores que as pagas.  Diz não á pirataria.


January 13, 2009

Piada cosmica… Zon a 100mb

Filed under: ISP's,Pensamentos — admin @ 11:11 am

Aconteceu-me na semana passada uma piada de nível cósmico.

Como a maior parte dos meus leitores sabe, tenho um ódio de estimação para com o serviço de Net da Zon, devido a sua publicidade enganosa, ao seu PUA e a sua arrogância quando confrontados com isto.

Assim sendo, passei da Zon para a Vodafone ADSL Empresas, e para a utilização que efectuo, chega e sobra sem haver problemas, ou surpresas estranhas.

E eis que na semana passada, recebi um contacto de um comercial da Zon que me tentava impingir a nova Zon Wideband de 100mbits.

Não pude deixar de me rir, e em seguida de colocar o tico e o teco a fazer contas baseadas na minha passada experiência com eles:

100 Mbs ‘Ilimitados’ por 60€…

Os ‘ilimitados’ são 300 Gb, depois disso os fantabulasticos 100Mbs são cortados à grande para menos de um milionésimo disso…

…100 Mb dá para sacar acima de 700Mb/minuto (assumindo que a storage aguenta a bomboca)

Ou seja… se a tendência da minha zona dos 300GB por mês (e levas com o PUA) se manter, quer dizer que ao fim de 5000 minutos fico na pratica sem net… 84 horas… 3 dias…

… tudo por 60 euros por mês….

… ao que respondi ao comercial… é que é já a seguir…. lamento mas não quero pagar 60 e tal euros para ter net apenas 3 dias por mês 🙂

O teu ISP faz TS?

Filed under: Pensamentos — admin @ 11:00 am

Foi apresentada ma ferramenta para testar se o ISP que temos está ou não a fazer TS ou outras actividades menos correctas para os seus clientes:


Ps: é bom, é bonito e prova que quando se está on… normalmente se está off…

O texto original na sua integra:

Certain ISPs have been shown to rate limit or block BitTorrent traffic sent by their customers. While there are multiple reports of this on the web, only a few ISPs have admitted that they manipulate BitTorrent traffic. And, to date, it is hard for users without networking expertise to gain evidence about the behavior of their ISP.

This test suite creates a BitTorrent-like transfer between your machine and our server, and determines whether or not your ISP is limiting such traffic. This is a first step towards making traffic manipulation by ISPs more transparent to their customers.

What can you test?

Our test focuses on the popular BitTorrent protocol as many ISPs are suspected to manipulate BitTorrent traffic. This type of traffic can be identified by the port it is sent on (e.g., TCP port 6881) or by BitTorrent content headers which occur in the packets.
Therefore, we designed our online tool to detect whether your ISP is using one of the following techniques:

  • Throttling all BitTorrent traffic.
  • Throttling all traffic at well-known BitTorrent ports.
  • Throttling BitTorrent traffic only at well-known BitTorrent ports.

Note that some ISPs do not throttle all BitTorrent traffic but only if this traffic exceeds a certain threshold. Thus, passing our tests does not necessary mean that there is no throttling occurring on your link.

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