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Windows Thread, Managing file downloads via AD How are you doing it !! in Technical; I have had file downloads for students disabled via GP for some time now, as yuo would expect it has ...
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    Roger's Avatar
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    Managing file downloads via AD How are you doing it !!

    I have had file downloads for students disabled via GP for some time now, as yuo would expect it has proven very effective in keeping the network free from `Junk`
    However I am having problems with website access to a number of sites that require valid use eg MFL dept: use Linguascope, when access is attempted to certain pages the file download disabled message appears, not sure what file (s) it is blocking? (logging on as a user without the policy in place does not give any clues)

    How are you people managing file downloads ??

    Roger

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    Re: Managing file downloads via AD How are you doing it !!

    On the proxy. Blacklisting the various mime types then whitelisting the sites staff/students need to use.

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    Roger's Avatar
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    Re: Managing file downloads via AD How are you doing it !!

    Thanks Geoff, unfortunately we don`t have a proxy server here.
    Will make it part of the ICT development plan.

    Roger

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    Re: Managing file downloads via AD How are you doing it !!

    Using Linux + Squid + Dansguardian if you need to write that down too. I'm unaware of any other proxy filtering software that can do mime filtering.

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    Re: Managing file downloads via AD How are you doing it !!

    I'll have to check ... but WebBlocker (as part of of the software on the WatchGuard Firebox) does MIME types ... and I am sure Web Marshall does too ...

    But they cost ...

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    Re: Managing file downloads via AD How are you doing it !!

    All the school has to pay for was the hardware and the URLBlacklist.com subscription.

    http://urlblacklist.com/?sec=subscribe

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    Re: Managing file downloads via AD How are you doing it !!

    I thought you were running Censornet roger? Or am I mistaking you for another Lancaster school?

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    Re: Managing file downloads via AD How are you doing it !!

    Don`t have Censornet here Chris - Roger

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    Re: Managing file downloads via AD How are you doing it !!

    Quote Originally Posted by Geoff
    Using Linux + Squid + Dansguardian if you need to write that down too. I'm unaware of any other proxy filtering software that can do mime filtering.
    I'm pretty sure ISA Server can.

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    Re: Managing file downloads via AD How are you doing it !!

    We testing this on ISA 2004 just now. Seems to work really well. Lets you easily specify which users/groups can get access to which type's of file downloads.

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    Re: Managing file downloads via AD How are you doing it !!

    You could try adding this Linguascope in as a trusted site in GP, and allow file downloads for that trusted site.

    We are currently doing this for the DIDA site. We deny all file downloads from every site expect DIDA.

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    Re: Managing file downloads via AD How are you doing it !!

    ISA Server 2004 does a good job when it comes to things like this. It allows you to define mime and content type and block these per group/per user/pernetwork basis if you want to.

    It does cost money but its worth it!. From the spec side it doesn't require too much 512mb ram would be enough and a 40Gb HDD would fine fine. However if you can afford a better spec than this, it always help.

    We have ISA Serve 2004 as the main firewall and its also got SurfControl webfilter for filtering out web content. It also allows for bandwidth management - added bonus. Works well.

    Ashok.

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    Re: Managing file downloads via AD How are you doing it !!



    ISA is a memory hungry sonofabitch. It'll take all you can throw at it. This is snapshot of the w3proxy service on our server. That server was our first with 2GB RAM :|

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    Re: Managing file downloads via AD How are you doing it !!

    Quote Originally Posted by Norphy
    ISA is a memory hungry sonofabitch. It'll take all you can throw at it. This is snapshot of the w3proxy service on our server. That server was our first with 2GB RAM :|
    Isn't that the idea? :P

    I should think its caching as much as possible in memory to keep response times down.

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    Re: Managing file downloads via AD How are you doing it !!

    True, Linux does the same:

    Code:
    root@hydra:~# free
                 total       used       free     shared    buffers     cached
    Mem:        484364     440136      44228          0      34860     252392
    -/+ buffers/cache:     152884     331480
    Swap:       851404      12904     838500

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