China's Censorship Firewall Defeated
July 4, 2006 3:14 PM
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Censorship continues to be a big concern for China
A group of computer experts from the University of Cambridge claims that they are now able to circumvent the censorship mechanism that China uses to block unwanted content from reaching its citizens. Certain words are banned and certain websites are also banned. A user sitting within the country's network will not be able to reach websites for which the government has deemed inappropriate. China itself has
defended its right to police the Internet for its citizens
The group of researchers say that China's firewall is based on a a series of Cisco routers and the products work by censoring keywords. When a user wishes to access a websites that's banned, the router returns reset packets to the foreign website, severing the connection -- the data transmission is stopped at the foreign end-point. Using this bit of information on how the Cisco routers work, the researchers were able to find their way around the firewall by creating a system that ignores the reset packets sent by the Chinese routers.
Along with their discovery, the researchers also found that it was possible to create a denial-of-service (DoS) attack from within the firewall using the router's own blocking mechanisms. By masquerading the source IP address of a banned website to one that's within China's network, the researchers are able to ban users from within the network from accessing a Chinese government website for example.
Richard Clayton, spokesperson for the laboratory at the university told reporters that the researchers had reported the findings to the Chinese Computer Emergency Response Team.
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RE: cat and mouse
7/4/2006 10:40:56 PM
" I don't want people in the US to be able to view kiddy porn. "
I dont really think it's a matter what one personally "wants" other people to consume/see.
The inet will always be a place where there is literally *everything* on your finger tips...and "everything" includes things which are immoral/illegal/criminal.
It's the responsilbility (and morale) of the individual to chose from that variety. Blocking out content doesn't make a potential child-molester less "dangerous" - he might as well get his fix from other places. The problem itself stays. (The content does NOT MAKE the criminal....instead, the content is there because of criminal's/pervert's (so to speak) "demand" - otherwise that stuff wouldnt exist on the internet.
I just dont like blaming the MEDIUM - and blaming it for the fact that it is a medium with a HIGH amount of freedom and variety. (Mirror of society basically)
Because the "freedom" in the medium (internet) is a GOOD thing - all other problems arising from there have to be solved OTHERWISE.
Its the PARENTS responsilbility to watch over what their kids do, it's an individuals responsibility whether they d/l copyrighted music/warez....
This is basically the principle of a free society - and the chinese gvt and similiar restrictive gvts for sure are going the OTHER way in deciding FOR the individual "what is good for them".
Certain news, MIGHT BE BAD for a citizen...so block it.
This and this mightbe bad, BLOCK IT.
Reports which are NOT in sync what the gvt thinks are BAD - so BLOCK EM.
It's dangerous saying "i dont want xyz to see zyx on the internet"....maybe for you it's k-porn (understandable !), for another person it's WHATEVER....it can be EVERYTHING, political controversial material, religious texts which someone doesnt agree, sexual preference, whatever.
People/Gvts did that throughout history btw by "defining" standards what is "bad" for a citizen and what is deemed appropriate. It's censorship - and EVERY government/regime will ALWAYS have a GOOD excuse and have a strong opinion that this censorship is only benefitial and legitimate and "good" and moral.
However, i really prefer making MY own decisions what is appropriate and where i get my news from etc.
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