Please explain the force proxy!

  • Using Opera on LMDE2, after toying around with my VPN, which probably messed up connectivity for a while, requests sent by my local Opera come from addresses owned by Opera. It is clearly forcing some sort of proxy server while maintaining the browser string.

    107.167.113.32 - - [21/Jan/2016:02:36:35 +0100] "GET / HTTP/1.1" 200 1720 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.73 Safari/537.36 OPR/34.0.2036.25"

    190.100.96.30 - - [21/Jan/2016:02:36:11 +0100] "GET / HTTP/1.1" 200 1720 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.73 Safari/537.36 OPR/34.0.2036.25"

    141.0.13.214 - - [21/Jan/2016:02:34:55 +0100] "GET / HTTP/1.1" 200 1720 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.73 Safari/537.36 OPR/34.0.2036.25"

    These seem to belong to the opera mini cluster. Why would you be spying on my web traffic?

  • Apparently it is the "Turbo" checkbox, which seems to turn the browser into an Opera Mini. How about a little bit of information when enabling this? I don't even remember doing it, must have been a complete accident.

  • Turbo routes traffic through Opera's servers in order to compress data - if you have limited bandwidth (dial-up or DSL) or a data cap (as in, 10 GB per month). It is not Mini, it does not pre-render content, but it is like several other "internet accelerators" available. Though as far as "spying", Opera Turbo does not compress secure sites at all.

    Mini is actually pre-rendered, and as such would need to route secure data through the proxy as well since the Mini client couldn't render it otherwise.

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