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  1. #1
    Untangler
    Join Date
    Apr 2009
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    59

    Default Google Translator bypasses web filter

    Pasting a blocked URL in to the Google Translate page and selecting a starting language other than english, allows you to click a new "translated" link that is proxied through Google and bypasses the web filter.

    I saw at least one occurrence of this question posted years ago. The only answer was to block translate.google.com.

    Unfortunately, that's not really a viable solution. This is a school, and our students have language classes.

    Anybody know about this issue and have any "modern" methods of blocking this in Untangle now without disabling the entire Google Translator?

    Thanks

  2. #2
    Untangler jcoffin's Avatar
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    Aug 2008
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    Sunnyvale, CA
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    Default

    The domain of the "tramslated" site is google.com which is acting as a proxy.
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  3. #3
    Master Untangler
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    May 2010
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    Texas, USA
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    Default

    By the way, this works on ANY web filter I've tested it on, and has for YEARS - bluecoat, Cisco, barracuda, etc, etc. It is a big deal.

    You can block this, though, which at least last time I checked blocked the web proxy part, while leaving the text translation part of the site working:

    translate.googleusercontent.com

    or

    translate\.googleusercontent\.com/.*(http|https).*[a-zA-Z0-9]
    (for systems where it is easy to use a regex type format)
    Last edited by JasonJoel; 09-25-2017 at 11:22 AM.

  4. #4
    Untangler
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    Apr 2009
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    Default

    Thanks @JasonJoel. I didn't see your edited comment. I'll give this a shot and let you know.

  5. #5
    Untangle Junkie dmorris's Avatar
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    Nov 2006
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    San Carlos, CA
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    17,726

    Default

    Quote Originally Posted by JasonJoel View Post
    By the way, this works on ANY web filter I've tested it on, and has for YEARS - bluecoat, Cisco, barracuda, etc, etc. It is a big deal.

    You can block this, though, which at least last time I checked blocked the web proxy part, while leaving the text translation part of the site working:

    translate.googleusercontent.com

    or

    translate\.googleusercontent\.com/.*(http|https).*[a-zA-Z0-9]
    (for systems where it is easy to use a regex type format)
    Thats smart.
    In untangle that would be:
    translate.googleusercontent.com*(http|https)*

    That will only work if you're doing SSL inspection and can see the URI
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  6. #6
    Untangler
    Join Date
    Aug 2009
    Posts
    45

    Default

    Where would that be entered in Untangle? Web filter rule? SSL Inspector rule?

    EDIT: I figured it out. I put translate.googleusercontent.com in the Block Sites in Web filter, and *translate.googleusercontent.com* as a SSL: SNI Hostname rule in SSL Inspector.
    Last edited by MrBryce2000; 12-12-2017 at 02:53 PM.

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