Why use DNS ? Anonymous proxies

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Discussion Overview

The discussion revolves around the use of DNS servers and proxies to bypass government filtering of websites. Participants explore the effectiveness of different DNS services and the challenges associated with using free proxies.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that using Google DNS previously allowed access to filtered sites like Facebook, but questions why it no longer works.
  • Another participant suggests that governments may block DNS lookups by excluding certain IPs from lookup tables, limiting users' knowledge of alternative DNS servers.
  • Some participants mention other free DNS servers, such as 208.67.222.222 and 208.67.222.200, but express uncertainty about whether these are also blocked.
  • There is a recurring inquiry about how to determine the port used by free proxies, with one participant suggesting that many proxies default to port 80.
  • Participants share links to proxy websites and express frustration over the lack of port information provided by certain proxy services.
  • A participant mentions finding a list of free DNS servers through a Google search but questions the currency of the information.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the effectiveness of various DNS servers and proxies, and there is no consensus on the best methods to bypass filtering or the reliability of the suggested resources.

Contextual Notes

Participants acknowledge the limitations of their knowledge regarding the current status of DNS servers and proxy services, as well as the potential for government-imposed blocks that may not be easily circumvented.

lvu52
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I have tried using Google DNS to access websites that are filtered likely by my government. I think it used to work fine with Facebook but now it didn't. Why could I pass the filter with just a minor change of DNS ? Except Google, are there still other DNS's that are free for me to use ?

Also, I used to use proxies from this site http://www.proxy4free.com to access different websites but now they don't provide the ports anymore for me to insert into port area in my browser. How can I check which port a particular free proxy is used so I can get it done with my browser ? Thanks.
 
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I guess one way to nobble the net is to prevent successful DNS lookups by excluding from the lookup table IPs for those domain names. Most users would not know of other DNS servers that could be used. Yes, there are some other free ones. I recently noted these as open DNS servers: 208.67.222.222 and 208.67.222.200 but of course maybe they, too, have been blocked.

Besides blocking DNS lookups, your govt probably also totally blocks certain sites by a separate technique that can't be so easily evaded. Are you saying you now can't get to facebook?
lvu52 said:
Also, I used to use proxies from this site http://www.proxy4free.com to access different websites but now they don't provide the ports anymore for me to insert into port area in my browser. How can I check which port a particular free proxy is used so I can get it done with my browser ? Thanks.

It would seem pointless for proxy4free to provide an address without a port. Maybe try some other list of free proxys?
 
Also, I used to use proxies from this site http://www.proxy4free.com to access different websites but now they don't provide the ports anymore for me to insert into port area in my browser. How can I check which port a particular free proxy is used so I can get it done with my browser ? Thanks.
Most of those sites are ones that you surf to, and then on their home page in a box there type in the web address of the banned site you want to read. So it looks like it defaults to port 80. At proxy4free there are lists of other sites where you can obtain more proxies, e.g., http://www.centurian.org/
 

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