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[Comrade Answers: Week 2]
July 23rd, 2007Comrade Smack, my company has gone through many content filters and I have
not been able to circumvent one! I have seen these (in no particular order)
in action…Lightspeed,
something setup on squid,
and simple denying pages.Could you please post some ways to circumvent common content filtering /
censorship?Sincerely, Friik.
This is a complex problem to tackle. There are a few great ways to bypass filters and censors. Of course, I haven’t been under this problem for a while, there are a ton of tools out there.
Standard Proxies
This is a pretty simple method, but you need the permissions to change your browser settings. This isn’t usually the case whenever you’re subjected to a content filter, so I’m not going to spend much time on it. Doing a quick google search for proxy lists, anonymous proxy lists, et cetera should yield you thousands of proxies to use.
Web Proxies
Web proxies are by far the easiest method for circumventing content filters. They require no installation and is as simple as navigating to a web page. Their effectiveness varies, though, on the content filter you’re attempting to circumvent. If it’s a blacklist than the ridiculous amount of web proxies should mean you can get to wherever you want. More complicated, though, is when it’s a keyword filter for meta-description tags or actual page scans. Quite a few of the proxy sites are cleverly succinct as far as using the word “proxy” on their page, so you can probably go this route.
hidemyass.com
stayinvisible.com
pr0xy.com
Tor
This is definitely the new method of maneuvering around content filters, any sort of censorship, or just wire reading from the NSA or your ISP. Tor works by onion routing, which is a term that you’ll probably need to do some reading about if you care how it functions. Otherwise, you just need to know that your traffic bounces all over the world before it gets to your destination. The content filter checks that it’s coming from a different source and almost always lets it through. Tor can require some installation to use, but there are tools with it integrated already. The coolest I’ve seen is the xeroBank Browser, which you can install on a jumpdrive so that you don’t need install permissions wherever you want to use it. Everythings encrypted so even your ISP doesn’t know where you’re going.
If anyone has other suggestions not listed here, feel free to comment
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July 23rd, 2007 at 10:49
SSH to a machine that runs OpenSSH server, this has a Socks 5 proxy built in.
Linux users “ssh -D 7070 user@your-server-ip-or-domain-name.com”
Set your browser (or whatever) to Socks 5 Proxy “127.0.0.1:7070″ and Browse away.
Windows users require “putty” but its dead easy to use, connect and just change the proxy in firefox to 127.0.0.1:7070.
Shell accounts can be obtained from places like silenceisdefeat (google that) and http://sdf.lonestar.org/index.cgi
And I also forgot to mention, using SSH2 people on the local network cant sniff your traffic and see what you are up to.
on a plus note check “about:config” in Firefox, find “network.proxy.socks_remote_dns” and set it to true, this stops DNS leakage to the local network so DNS requests run through the proxy.
Private, Censor free browsing.