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London Grid for Learning (LGfL) Thread, chrome? in Regional Broadband Consortiums (RBC); Has anyone noticed chrome allows you to website where as internet explorer denies? I just saw a kid on facebook ...
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    chrome?

    Has anyone noticed chrome allows you to website where as internet explorer denies?

    I just saw a kid on facebook on chrome but its blocked in IE

    anyone had similar issues?

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    localzuk's Avatar
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    Never had that issue, as blocking is done by a proxy upstream - so it can't be the browser. Are you sure it was actually facebook.com or was it a proxied version of facebook?

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    i saw the Facebook login screen didn't see them log in and also it was facebook.com nothing else in the address bar so got confused! unless they clicked on cached site

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    localzuk's Avatar
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    How do you enforce filtering there? Can students change the proxy server? Is it enforced in Chrome etc...?

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    theres no proxy, ive left it blank as we dont have proxy server here. i dont think they can change proxy settings not tested in chrome but if we dont have proxy even if they can change the proxy would that bypass things?

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    localzuk's Avatar
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    How do you filter things then?

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    Gibson335's Avatar
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    Make sure they haven't added the Zen**** extension - allowing them to bypass everything. I can't type the word because the thread will be filtered out otherwise.

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    We had some kids here who were running 'Chrome Portable' off a memory stick which bypassed our web filtering / proxy. Made some network changes and implemented Applocker to stop them.

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    fiza's Avatar
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    blocked here using all browsers.

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    Oaktech's Avatar
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    If you want to be double sure, block the address in the blacklist in the Chrome GPO. I've found it to be more effective on certain google sites than the filtering!

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    I would recommend blocking facebook.com & https://173.252.64.0-173.252.127.255 through WebScreen.

    If Chrome presents an IP address to the filtering system, Facebook may be accessible. Particularly if the categories social networking & host is an IP are allowed for the relevant policy.

  12. Thanks to BromleyTech from:

    RichS (10th March 2014)

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    Could be a chrome extension...

    In any case, blocking by DNS eliminates the problem of "is the proxy set or not" or "is the site HTTPS or not"

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    apur32's Avatar
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    We are also informed that chrome bypass websites which are blocked by IE.

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    localzuk's Avatar
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    As I said earlier - how is your blocking being performed? In my experience, blocking is usually done 'upstream' from the client - ie. via a proxy (be it transparent or non-transparent to the end user). What kind of filtering system only works via IE?

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    apur32's Avatar
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    We are on LGFL network but using our own filtering system Websense internally which works fine with IE and Firefox. We are using proxy server ISA 2006.

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