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Suppose that I want to connect to internet through proxy server A. If I am in a network where connection to external network should go through proxy server B, is it possible to do this? Is there any way to use nested/double proxy like this?

my computer --> proxy B --> proxy A --> internet

Edit

I have no control either to proxy A or proxy B, can only control my computer.

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  • Yes, it's how the Tor network essentially works. Setting up something like this, however, is another story and will depend on a lot of different factors.
    – txtechhelp
    Jan 11, 2016 at 8:37

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For SOCKS this is fairly straightforward if you know where all the proxies are, you just ask each one to connect to the next.

For HTTP, to specify an upstream proxy, you'd need to use the CONNECT method to get the proxy to connect to the next proxy.

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  • Any applicable example (command line, Firefox config, etc) please?
    – fikr4n
    Jul 20, 2016 at 4:09
  • sorry, I thought you were doing this in code. Browsers don't support this. You'd need to use something like proxifier which I believe can support nested proxies.
    – Adrien
    Jul 20, 2016 at 4:11
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    yes it can see proxifier.com/documentation/v3/chain.htm
    – Adrien
    Jul 20, 2016 at 4:13
  • Nice info, I found also proxychain (have not try yet) for Linux
    – fikr4n
    Jul 20, 2016 at 6:11

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