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I am using Firefox 3.5.7 with FoxyProxy. I have an ssh tunnel forwarding 8080 through to an HTTP proxy server on the other end. With FoxyProxy, I send work traffic direct but everything else goes through the proxy server. DNS lookups, though, still go to work's DNS servers for resolution. Is there an add-on that can funnel certain DNS traffic to the OS but shove everything else through my ssh tunnel? It's a long shot, but it never hurts to ask....

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2 Answers

  1. In firefox type this in your address bar:

    about:config

  2. Click that you promise to be careful.

  3. In the filter textbox, type: proxy

  4. Find the preference name called *network.proxy.socks_remote_dns*. Double click it to set it to true.

Firefox will now proxy DNS requests instead of trying to resolve them locally.

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I always forget this step, very important. –  Spencer K Sep 14 '12 at 15:19
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Configure your ssh client to do Dynamic forwarding (-D flag on the openssh client) so that it acts like a SOCKS server. Then you can do remote DNS lookups via SOCKS. A straight up HTTP proxy doesn't support what you want.

FoxyProxy has info on how to do what you want with SOCKS. Privoxy is another good option, too.

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