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Real-Time Testing of China's Internet Filters

mrbnsn writes "The Berkman Center for Internet & Society at Harvard Law School is conducting a study of Internet filtering in countries worldwide. As part of this study, they have put up a web page where you can get a real-time report on whether any URL you submit is blocked by the Great Firewall. Check whether you'd be able to read your favorite web sites in Beijing!" I've also heard that there are some "western" hotels that have non-blocked connections. Anyone from China care to tell us what it's like?

54 of 251 comments (clear)

  1. And so begins... by Nailer · · Score: 3, Funny

    ...the downfall of Chinese civilisation:

    Testing complete for http://www.stileproject.com. Result:
    Reported as accessible in China


    1. Re:And so begins... by Raetsel · · Score: 3, Informative

      • Starting testing...

      • Stage one testing complete.
        Stage two testing complete.

        Testing complete for http://google.com. Result:
        Reported as inaccessible in China

      Great. All the sleaze you want, but one of the premier search engines is off limits. Decline of civilization indeed -- perhaps the result will create an interesting test case for future anthropology and psych students.
      --

      "...America's great minds of today, teaching America's great minds of tomorrow. Poor bastards." -- A Beautiful Min
    2. Re:And so begins... by spongman · · Score: 2
      no shit! google has to be one of the most useful things on the internet, and the internet is arguable one of the most useful things around today. tools for tool users. evolution for those monkeys that can.

      Poor bastards.

    3. Re:And so begins... by H3XA · · Score: 2

      I'm near Shanghai and for the last 8 months I have been hear, Google has always worked fine..... until I woke up this morning. I gather everyone else can still access it so I wonder if it was freshly added today to the block list?

      While on this topic..... whats the 2nd best search engine - finding life without google to be difficult :(

      - HeXa

    4. Re:And so begins... by H3XA · · Score: 2

      Slashdot ain't blocked or otherwise I would not be able to post this message ;)

      - HeXa

    5. Re:And so begins... by brain159 · · Score: 2

      Why not? What's so threatening to the chinese government about Marlon Brando look-alikes? :P

    6. Re:And so begins... by H3XA · · Score: 2

      The IP address work fine to access Google - thanks for the, solves my googling problem

      Perhaps it is a DNS problem resolving google.com, I will try again tomorrow and see if the name works yet.

      - HeXa

    7. Re:And so begins... by jelle · · Score: 2

      Masybe they blocked the DNS servers for google.

      Hmm. Maybe did the people running the root servers put up a website on those machines?

      --
      --- Hindsight is 20/20, but walking backwards is not the answer.
    8. Re:And so begins... by Latent+IT · · Score: 2

      This is because searches rely on using the google.com DNS entry. So even though you browse to google by using 111.222.111.222 or whatever, the search result URL is still www.google.com/blahblahblah.

      To fix this problem, you need to edit your local hosts file to manually resolve google.com. If you let me know what OS you run, I can tell you exactly how to do it. This will only work if they're only filtering google.com the name, and not the IP address. But if you get the site by putting in the ip, that's probably what they're doing. How dumb!

      Of course, you could use a search engine to find out how as well. ;p

  2. It would also be interesting to post results... by afflatus_com · · Score: 2

    on the percentage success that peek-a-booty can get around a random sample of these Chinese-government blocked URLs. It would be interesting report to read, if anyone who has the capacity or people connections to can get some good effectiveness data.

    --

    -----
    Cast a Cold Eye
    On Life, on Death
    Horseman, pass by
    --W.B. Yeats' gravestone
  3. And how can we stop this? by Lady+Blue · · Score: 3, Insightful

    What I want to know is how we, the coder community, can help people in China get around the site filters! I know there's one research project underway with proxy servers, but it'd be great if someone could come up with a cheap and easy hack that solves this. Any ideas?

    1. Re:And how can we stop this? by nutznboltz · · Score: 2, Interesting

      Just keep making web caches of the banned documents and they will have a "whack-a-mole" problem.

      A mini cache with the most subversive web pages that could fit in 2MB could be automatically distributed to hundreds of web sites.

      You can walk around the so-called "Great" Firewall right now by using existing web caches. Can you imagine how bad they'd lose if there were thousands of caches of subversive pages?

    2. Re:And how can we stop this? by Knightcon · · Score: 2, Interesting

      What about Triangle Boy the whole point of this project is to do just that defeat internet censorship in all its forms.

    3. Re:And how can we stop this? by Fred+Ferrigno · · Score: 2, Funny

      Stile Project (a haven of rather vile material) and Camwhores got around it just by using standard load-balancing techniques.

      Meh, if there's any site worth blocking, it's Stile's.

  4. Actually... by olesk · · Score: 5, Informative

    ...it depends. I was in China recently, visiting an old friend who lives there. He signed a document saying he was officially a foreigner and suddenly got CNN on his cable. Seems you can get away from most of it by not being Chinese, even in China.

    I prodded the "Great Firewall" when I was there, and realized some sites were cut off, like the CNN. Besides Yahoo and some other sites have tailor made pages for the Chinese. I made a SSH-tunnel back home to god old Norway though (no restrictions on protocols/ports it seemed, only some IP-adresses), so I had no problems. I don't think it would be much of an obstacle for most slashdotters :)

    1. Re:Actually... by doop · · Score: 3, Informative

      I visited China very recently (to attend a conference which was being held there), and stayed in a pretty Westernized
      hotel with internet access.

      slashdot was accessible, as was google, which IIRC was even nice enough to talk to me in the appropriate language. Some bits of yahoo.com were accessible, but not the webmail or news. CNN and BBC News were both blocked, as were quite a few other news sites, and unsurprising things like Amnesty international.

      I say blocked, but what I mean is that when I tried to access these sites, the connections would always just time out while others were fine. I can't remember what happened when I tried to ping them.

      I had no trouble downloading an SSH client and using it to connect back home.

  5. list of blocked by nexex · · Score: 2

    no one IN china will be able to tell us, slashdot is on the list of known blocked sites.

    http://code.law.harvard.edu/filtering/list.html

    --
    Winter 2010: With Glowing Hearts
    1. Re:list of blocked by p3d0 · · Score: 2
      I don't believe China would have the balls to block Sourceforge and OSDN.
      Huh? What does that mean? Why would this take "balls"?

      Anyway...

      --
      Patrick Doyle
      I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
    2. Re:list of blocked by billbaggins · · Score: 3, Funny
      I don't believe China would have the balls to block Sourceforge and OSDN.
      Huh? What does that mean? Why would this take "balls"?
      Y'see, whenever someone in China opens up a pipe to a blocked site, they have to run over really fast and stuff a ball in one end of the pipe so that the information can't get through. They can retrieve the ball after a timeout convinces the browser that the site doesn't exist, but if a site is really popular and a lot of people request it in a short time, they can actually run out of balls to stuff in pipes, the firewall breaks down, and they all burn to death. So they have to be very careful which sites they block.
      --
      "The best argument against democracy is a five minute chat with the average voter."
      --Winston Churchill
  6. The Real Point by Zeinfeld · · Score: 3, Insightful
    The idea that the great firewall of China will protect the communist party is farcical. As with any wall it can do nothing against the threat that comes from inside the country.

    Of course in the mind of lunatic GOP nationalists nobody in the world outside of the US ever had an idea about freedom or human rights. But the Berlin wall failled and so will the great firewall.

    The criticism that will bring down the communist party is local. That is why they are so afraid of an AIDS activist who described how careless officials spread AIDS to whole villiages collecting blood plasma.

    Outside comment can play a useful role but politicians who agrandize themselves by claiming to have brought down communism in other countries are largely hot air bags.

    --
    Looking for an Information Security student project suggestion?
    Try http://dotcrimeManifesto.com/
    1. Re:The Real Point by nexex · · Score: 2

      Hmm, wasn't it Pres Reagan who said, "...tear down this wall!" Besides, this has nothing to do with the GOP...

      --
      Winter 2010: With Glowing Hearts
    2. Re:The Real Point by Zeinfeld · · Score: 3, Insightful
      Hmm, wasn't it Pres Reagan who said, "...tear down this wall!" Besides, this has nothing to do with the GOP...

      A speach that went down well in the US but you miss out the start of the phrase, "Mr Gorbachev". Gorbachev did far more to end communism in the USSR than Reagan could.

      The Soviet Union collapsed because the Communist party had visibly lost control and Gorbachev was clearly not prepared to reassert it by force. The loss of control began in Poland and spread through Eastern Europe. It was the students from East Germany that tore down the wall, not Gorbachev or Reagan.

      If huffing and puffing from US politicians would blow down communist regimes then Cuba, Vietnam, North Korea would have fallen first. Instead they are still standing and it is pretty obvious that the regime is using the external hostility as an excuse.

      Cancel the sanctions against Cuba and the regime would be lucky to last more than five years. The right is keen to spend money on broadcast propaganda to attack Cuba but completely ignores the propaganda effect of tourists carrying fat wallets. Of course the Cuba sanctions policy is not about bringing down Fidel and has everything to do with getting votea in Florida so the effectiveness is not exactly the issue.

      --
      Looking for an Information Security student project suggestion?
      Try http://dotcrimeManifesto.com/
    3. Re:The Real Point by Zeinfeld · · Score: 2
      We have defeated Cuba, Vietnam, North Korea.

      Not unless you are a communist sympathizer.

      The only thing keeping those regimes alive is the ability of the leaders to blame the US for the results of their own incompetence.

      Same thing just happened with Iran. After 9/11 the democratic reformers had an ideal opportunity to take on the unelected mullahs who were then on the defensive. His Inadequacy gives his idiotic 'Axis of Evil' speech and that is all over, the mullahs are back in control and everyone has to denounce the great satan again.

      Attacks from US politicians to boost their own ratings do nothing for reform.

      Chineese comunism is going to be dumped in the garbage can of history sooner or later. They have already dumped the economic theory and the political part will follow soon enough. Ironically the main thing that holds the party in place is fear of a return to the instability and famines of Mao's great leap forward.

      --
      Looking for an Information Security student project suggestion?
      Try http://dotcrimeManifesto.com/
  7. No sourceforge in China? by micahjd · · Score: 2
    Anyone else notice that http://sourceforge.net is blocked? I've had Chinese developers asking me to mirror documentation on my sourceforge-hosted site because it was blocked.

    --
    -- 2 + 2 = 5, for very large values of 2
    1. Re:No sourceforge in China? by athmanb · · Score: 2

      Probably because of the subversive downloads hosted by sourceforge like some gnutella and freenet clients.

    2. Re:No sourceforge in China? by spongman · · Score: 2

      ironic, isn't it, that a country with such a poor IP record as Chin should be blocking suck things. ho-hum.

    3. Re:No sourceforge in China? by skuenzli · · Score: 2

      Well, it looks like a guy named Colin Phipps is maintaining this source. You can reach him at:
      cph [at] cph [dot] demon [dot] co [dot] uk.

      If you have a more specific contact request, then let me know and I will try to find it.

      Regards,
      Stephen

  8. Re:Secret fibres HK-macow by odaiwai · · Score: 2

    HK and Macau were both *NOT* part of China for a long time. They're now both Special Administrative Regions and very independent.

    I'm in HK and, trust me, there are no restrictions on the internet here.

    As for cables to Macau, it would make some sense to run cables across the Pearl Delta from HK (it's not that far) just to avoid going through the Mainland, and because it's a shorter line. It would have been done a long time ago, though, well before Macau was handed back to China.

    Macau was only returned to China in 1999, *AFTER* HK (1997), so I can't see any advantage - if there was a crackdown, HK would have been first.

    Some of the sites on the 'inaccessible' list were for pro-Taiwan HK newspapers, so sites in one part of China are blocked from the main part.

    ah-wai

  9. wrong by tanveer1979 · · Score: 2

    Starting testing...
    Stage one testing complete.
    Stage two testing complete.

    Testing complete for http://slashdot.org. Result:
    Reported as accessible in China

    Slashdot is accessible apparently
    --
    My Aurora : http://www.youtube.com/watch?v=o91ZsGwJYyg
    FB : https://www.facebook.com/TanveersPhotography
    1. Re:wrong by billbaggins · · Score: 5, Informative
      From the front page...

      http://slashdot.org - Reported as inaccessible in China
      http://www.slashdot.org - Reported as accessible in China

      Throw your result in (slashdot.org accessible), and what we get is either a filter on the fritz, or else this tester still has some bugs to be worked out of it. According to the FAQ, China's filter is based on IP address. Does slashdot's homepage have multiple IPs? (sorry, too lazy to check).

      For whatever it's worth, it seems that Saudi Arabia is not known to block slashdot.

      --
      "The best argument against democracy is a five minute chat with the average voter."
      --Winston Churchill
  10. All SourceForge sites blocked by Eloquence · · Score: 5, Informative
    This is the list of sites that have been found to be inaccsesible. A lot of them are the expectable human rights (Amnesty etc.), Tibet and Falun Gong stuff, as well as some news media (Yahoo Asia News, CBS News, BBC news, and many US-based China news sites).

    Geocities appears to be completely blocked.

    The Chinese government doesn't like Playboy or sex.com - hmm, do we see a correlation between repressive government and antisexual morals there? Nah, couldn't be.

    I have no idea why they censor {Insert Something Funny}, an obscure weblog, an anti-tobacco group, the Canadian Parks and Wilderness Society, Columbia Earthscape, or Columbia University.

    Google is on their shitlist. No surprise given its cache and large index. The Wayback Machine isn't - I'd expect that to change in the long term. Anonymizer is accessible as well.

    Peek-A-Booty and Freenet are not accessible, of course. It appears that all SourceForge sites are blocked (unless the testing engine is slashdotted and not working properly, but other sites are reported as accessible). I presume this might be because Freenet is hosted at SourceForge.

    1. Re:All SourceForge sites blocked by spongman · · Score: 3, Funny

      I would have thought that a country that has a 1-child-per-family law would want to encourage the male population to jack off as often as possible.

    2. Re:All SourceForge sites blocked by garcia · · Score: 2

      really? I just tried Playboy and Maxim and they worked just fine. If the government doesn't like them why don't they block them?

    3. Re:All SourceForge sites blocked by j_w_d · · Score: 2

      The last I heard, Seoul was still in Korea, so perhaps that has something to do with their being accessible there.

      --
      ------ The only greater hazard to your liberty than n politicians is n+1 politicians.
  11. Extensive testing by worried geeks... by MavEtJu · · Score: 4, Funny

    Extensive testing by worried geeks has shown that slashdot.org is still accessible from the Chinese part of the Internet. Further tests are scheduled for the next couple of days to make sure it stays.

    --
    bash$ :(){ :|:&};:
  12. What's the point? by awptic · · Score: 2

    Having an entire coutry filter content is ridiculous.. don't they realise how futile this is against anyone with even the most basic understanding of computers and network? It doesn't take a genious to setup an ssh tunnel to a proxy outside of china, or to do any other number of things that could circumvent the filters. Oh well... that's alot of money down the drain for nothing.

    1. Re:What's the point? by spongman · · Score: 2

      the problem is that if you're intelligent enough to set up such a tunnel, are you willing to rish being shot in the back of the head for doing so?

  13. I'm in China, it's not that bad... by pfleisch · · Score: 4, Insightful

    I just arrived in Dalian, China three weeks ago and I'm going to be here for a year working at the Chinese Academy of Sciences.

    One of my main fears about coming here was the internet access. I was afraid that they would block any western site that could talk about democracy or badly about China in any way. Could it be possible that I might not be able to, gasp, read slashdot for an entire year? After I got here I found at that isn't the case at all. I can get to Slashdot, CNN, Yahoo, pretty much every site that I use on a regular basis. The only one that really pisses me off is sourceforge. Out of all the sites to block, why the hell did they pick that one? Maybe because they figure that if anyone does find a way to write a piece of software that could get around their firewall, that would probably be one of the first places it would be posted. I can't seem to come up with a better answer. Any ideas?

    Anyway, Google is not blocked, and neither is the cache, so if I ever do find a site that I can't get to, I just use Google's cache to get a general idea of what is there.

    Also, as far as the blocking of Playboy and other sex sites goes, any country where you can walk into a bar and have two prostitutes sitting on your lap within 5 minutes (no joke) has far more serious moral issues to deal with than a few internet sex sites. Enough said.

  14. What they don't tell you... by autopr0n · · Score: 2

    All sites tested here will be reviewed by party apparatchiks for inclusion in the filters.

    This site is nothing but a ploy to collect objectionable websites!

    Ok, not really. I just wanted to use 'apparatchiks' in a sentence. Btw, autopr0n isn't filtered! Come on and visit, horny chinamen! (and horny Chinese lesbians too). Coincidentally, there happen to be lots of Asian chicks featured...

    --
    autopr0n is like, down and stuff.
  15. Comment removed by account_deleted · · Score: 5, Interesting

    Comment removed based on user account deletion

  16. xenu by nzhavok · · Score: 2
    Starting testing...
    Stage one testing complete.

    Testing complete for http://www.xenu.com. Result:
    Site not reachable from US testing location. Check URL and web server.

    must be those dame scientologists in beijing
    --

    He who defends everything, defends nothing. -- Fredrick The Great
  17. My site's blocked. Speculating why. by Charles+Dodgeson · · Score: 2
    My vanity site is reported as inaccessible. I'm not sure why, but here are some guesses
    • It's vhosted, and there is something interesting I share that IP address with.
    • For a while, I reported all spam involving unresponsive Chinese network operators to the Chinese embassy in the US, telling them that this was a image problem for China.
    • After never having a response to those either, I started including in my LARTs to China text like "thank you for your support of a Free and Independent Tibet", hoping that that might get someone to pay attention.
    --
    Prime numbers are exactly what Alan Greenspan says they are -S. Minsky
  18. Re:No problems by Large+Green+Mallard · · Score: 2

    Or if you were really hardcore, and slightly paranoid about the Chinese government sniffing your login details to your home machine, you'ld use SSH to connect to it.

    Or even better, use the ssh -L port forwarding command to forward a local port on your machine in china to the squid port on your machine back home and browse the web using your browser of choice ;)

  19. Two words .... by shri · · Score: 2

    Thank Cisco. :)

  20. Re:No problems by wirefarm · · Score: 2

    ssh -X unrestricted.host
    is the way to go.

    Forward X Window apps through the beauty of ssh. When people talk about the Internet routing around censorship as damage, this is what they mean.
    Mail me at anything at mmdc dot net if you truly need an unrestricted connection over ssh.
    I'll set you up (if you can use mozilla over X)...

    Cheers,
    Jim in Tokyo

    --
    -- My Weblog.
  21. Re:slashdot is blocked by H3XA · · Score: 2

    I'm in China and I can view it fine.

    - HeXa

  22. darn..... why did i forget.. by sydneyfong · · Score: 2

    ... to test out the rumored blocked sites when I was in Tian Jin (a city near Beijing) a few weeks ago. Well, there I found a netcafe, and got online for a few hours. Slashdot was definately accesible there, and IIRC google was accessible too. I forgot to get on those sites with "controversal" information, so I'm not sure. I didn't have the feeling that sites were blocked though... But the connection... you could expect it was pretty darn slow ;-p

    --
    Don't quote me on this.
  23. But only today by xant · · Score: 3, Funny

    The Chinese government is reading /. today to find out what good sites they missed.

    --
    It's rare that you're presented with a knob whose only two positions are Make History and Flee Your Glorious Destiny.
  24. Maybe that's not the point... by JohnDenver · · Score: 2

    1. You don't have to be 100% effective to be effective.
    2. Maybe the point is to remind Chinese citizens they can filter any part of the Internet whenever they want. This keeps the censorship precident active, in the event they want to *really* lock down on unfavorable opinions.
    3. Maybe they want information to slowly seep into the country to reduce the risk of information shock.

    These sort of arguments apply well to content protection schemes. It doesn't have to work 100% to work.

    --
    "Communism is like having one [local] phone company " - Lenny Bruce
  25. I'm the stileproject admin by toastyman · · Score: 2

    I'm the geek behind stileproject.com, camwhores.com(mentioned in another comment), etc.

    About a year ago, we had www.stileproject.com resolving to 6 different IP's in a round-robin DNS arrangement.

    Someone from China reported to us that we got blocked by the .cn government, but that every few days which IP of ours was blocked would change, but it was never more than one IP at a time, so he could still get in eventually.

    I'm not exactly sure why, but eventually they either gave up, or decided that the site's content wasn't worth banning anymore because they dropped it and nobody's emailed me in many months saying they were having problems.

    And yes, we've had several people from China send in subscriptions (always in cash, wrapped in a dozen sheets of paper) for camwhores.com. I think no matter what country you're in, there's some huge appeal of foreign porn. :)

  26. I think you got it. by twitter · · Score: 2
    The real effectiveness lies in isolating those who know things. MOST people are not going to bother to cirumvent the filter and will continue to have their world shaped by the party. When and if you ever displease the party, "hacker" will be added to your list of crimes and no one will have any idea what you are talking about. You brought it on yourself your friends can say as they turn their back on you.

    I see the same kind of thing right here in the good USA. I just got burnt for "excessive" personal internet usage at my engineering job. My peers don't know what a google search is much less slashdot. Trying to explain that this a software news site and that I read it in part to keep up programing skill would be futile. Other people listen to online music, read CNN and other less work related things with impunity.

    As freedoms and personal dignity wane here, the rest of the world will suffer that much more.

    Look for your ability to post anything that would require filtering anywhere to go away. As multinational publishers and telcoms continue to gobble up the web, your ability to publish uncensored pages goes away.

    Anyone else want to build alternate networks? Think light and radio based backbone nodes with 811.b local distribution. No, I don't want to republish RIAA crap, swap porn or other Warez. What I want is the ability to publish MY content without AOL/McDisneySoft looking over my shoulder at my big five megs of advert wracked Geo Cities "web" pages.

    When all the censors finish their work, what's left will be a serries of billboards not worth browsing.

    End Rant.

    --

    Friends don't help friends install M$ junk.

  27. China Blocked from my Firewall by Nishi-no-wan · · Score: 2

    With the multiple ssh and other scans, combined with so many spam images hosted in China, I have most of China's major ISPs blocked at my firewall. I have a network to protect.

    I figure that just blocking off the ISP is better than notifying them that they have someone trying to tunnel through my servers. What would an ISP there do after investigating logs to see who it was?

  28. Major DNS problem in China (31/8) by AtomicBomb · · Score: 2

    Probe that later on. Many parts of China got hit by major DNS problem on 31/8, Beijing time. So the results were not at all reliable during the first 12 hours after this story was posted in slashdot.

  29. It's the Google cache by DABANSHEE · · Score: 2

    People are using it to axcess the google cache mirrors of blocked sites