Skype Blocking

"Skype blocking" may become a more prevalent issue in the near future, especially in developing countries or in countries with government-run telecom companies such as China that have much more to lose. Blocking Skype isn't just about government control and protecting government-run carrier monopolies - it's fear of what Skype represents - "free speech" both in an economic sense (very low cost and in some cases "free") as well as in a socio-political sense - granting for example Chinese citizens anonymous, encrypted "free speech"- away from governement monitors and censors. This is true of other totalitarian regimes as well, but China in particular is unique due to its large population of technologically savvy and Internet connected people.

In many developing countries, free market economics are not their forte' especially in socialist or communist states. China for example has very stringent censorship controls on Internet access. Figuratively speaking, they've taken the popular Net Nanny or Websense software (corporate web filtering product) and deployed it at the ISP level to block access to sites they deem unacceptable.(I'm not sure exactly which software/hardware solutions they use for filtering.)

In any event, according to the Skype Forum, China Telekom has been blocking access to www.skype.com. Others in China piped in the thread that they weren't having problems accessing Skype's website, while another posted stated that as far as he knew, "Skype.com is blocked in Shanghai, the only place I know that skype.com isn't available in mainland." Regardless of which areas of China is being blocked, this is very disturbing news.

Fortunately, as of right now, according to the forum, they are only blocking access to Skype's English .com website, thus you can simply go to Skype's German site or another foreign Skype site to download Skype or setup a SkypeOut account. Assuming you can read the foreign language of course.

But what would happen if China decided one day to block all Skype packets? Technologically, I think this would be extremely difficult to block Skype, though not impossible. Skype-to-Skype P2P calls would be extremely difficult to block. It might be easier for China to block access to the SkypeOut since there are predetermined IP addresses for the SkypeOut service. Although, through the use of SuperNodes, I don't believe the Skype software client connects directly with Skype's servers, so even that might be difficult to block.

Several countries banned VoIP or VoIP gateways providing phone service a few years ago, so banning Skype wouldn't be without precedent. Several people have chosen to ignore the law and setup VoIP gateways anyway and have been arrested. It will be quite interesting to see if an entire country decides to ban or block Skype outright and the ensuing public furor.

Give me Skype or give me death! - The future Skype Battle Cry

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Skype Blocking TrackBack URL : http://blog.tmcnet.com/mt/mt-tb.cgi/12485

[url=]One of Tom Keating''s posting[/url] stings my interest. He quoted what I've posted in [url=http://forum.skype.com/viewtopic.php?p=153181#153181]BAD NEWS: China Telecom blocks skype.com[/url] [quote] Skype.com is blocked in Shanghai, the only pl... Read More

4 Comments

Hi,

nice article. The correct ending for german domains is ".de" not ".gr", which is greece! No need to explain the difference, is there?

salut.

Omar Abo-Namous

Please all you free people out there
let them here from you

http://www.gulfnews.com/business/Telecom/10001807.html

to read about bitek product and the UAE

go to http://www.gulfnews.com/aboutus/contact/letter_to_editor.html

and tell them how you feel about it


we are counting on you the free people to help us.

please cut and paste this and email it to as many people as you could.

Dubai one of the UAE Emirates
"Emirate is equivalent of a state or province"
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Thank you all for your help

It maybe a little bit late, but our lab found some tips to make the blocking of Skype more intelligence. A socket level blocking.


The paper had been submitted to IEEE
http://personal.ie.cuhk.edu.hk/~cmleung5/index.html

| Reply

Sir i am using the isa server 2004.I want to block the skype messanger.How block the skype?

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