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Internet Related/Filtering/Firewall Thread, Block youtube but allow specific channels? in Technical; Before I begin, I suspect the answer is "you can't" or "you might be able to, but it'll be flaky ...
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    Block youtube but allow specific channels?

    Before I begin, I suspect the answer is "you can't" or "you might be able to, but it'll be flaky or inaccurate".

    We have SchoolGuardian and there's a channel that the English staff would like students to access because it contains a lot of hard-to-obtain shakespeare performances. Unfortunately there's very little (from what I can see) to tie a video url to a channel.

    The best I can think of is modifying the proxy so it allows any youtube page (+ associated .flvs) that mentions the (reasonably unlikely to be duplicated elsewhere) channel name, but blocks any page that doesn't have it.

    Can anyone think of a more elegant way? Downloading 600-odd 20mins-1hr long videos is not an option.

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    In my experience, I have generally found that you can't do this with most web filters.

    YouTube leverages a couple of domains, including (obviously) youtube.com, but also ytimg.com. All content is parsed through their application, but the URLs for the streaming content itself is cryptic or at least obscure.

    My District has the same problem ("how do we allow access to specific YouTube content?"), and the answer is that we can allow it for certain people (actually, certain Active Directory security groups) and disallow it for others.

    This doesn't stop someone from watching inappropriate videos on YouTube, but it works for us.

    If Google were cooperative, they would allow community tagging (categories) for videos. Then, at least the content filter could have something to work with.

    -lucas

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    tom_newton's Avatar
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    OK folks - can't promise anything but we will have a go

    I'd like to introduce you to another member of the SmoothWall team; Nile Clarke is just signing up for edugeek as I type - he specialises in blocklist stuff, so he'll have a look into this for you, which is fortuitous, as I will be away for 3 weeks

  4. Thanks to tom_newton from:

    pete (18th September 2009)

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    Hello, I'm the aforementioned blocklist chap. Thanks Tom.

    I'll have a look into what we can do about this and keep you posted!

  6. Thanks to nile_c from:

    pete (18th September 2009)

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    cheers Tom,

    Haven't looked at this for a while. PFY has hamthrax, so I'm a bit swamped. There do appear to be areas where the url specifies a channel:

    Code:
    "/watch?v=qt-snK3hj_o&channel=itnnews"
    but that's not always the case.

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    1.) Browse to 'guardian > filtering> user defined categories' via the drop-down menu.

    Under the 'current categories' heading click the checkbox for 'custom blocked content' then click edit.
    Expand the advanced options by clicking 'Advanced >>'

    Copy the following into the 'Absolute and weighted phrases' area:

    Code:
    (YouTube - Broadcast Yourself)(101)
    (youtube)(user_profile)(user_subs)(120)
    (youtube)(class="profile-box" id="user_)(120)
    (© 2009 YouTube, LLC)(120)
    Click the add button, and then the 'apply changes' button which appears.

    ---------------------------------------------------------------------------------

    2.) Now select 'custom allowed content' and click 'edit'.

    Expand the advanced options by clicking 'Advanced >>'
    Again, we add some rules to 'Absolute and weighted phrases':

    Code:
    (youtube)(watchUsername = 'YOUTUBEUSER')(300)
    Where YOUTUBEUSER is the name of the user/channel you wish to *allow*
    e.g. (youtube)(watchUsername = 'DowningSt')(300)
    Use one of these lines per youtube channel.

    Click 'Add', then 'apply changes'.


    ---------------------------------------------------------------------------------

    3.) Next we'll create a new category.

    Remain in the 'user defined categories' section and fill in the following:

    Name: YouTube
    Filter Type: Content and URL filtering
    Comment: youtube.com and subdomains

    In 'Domains and URLs' simply add:
    Code:
    youtube.com

    Click Add, and then 'Apply changes'.

    ---------------------------------------------------------------------------------

    4.) Now browse to the filters tab near the top of the page.

    Fill in the following:

    Name: YouTube domains
    Comment: YouTube filter use with Skip URL Blocking
    Type: Content and URL filtering

    From the tree of categories below, select 'User defined > YouTube'

    Click Add, Then 'Apply changes'


    ---------------------------------------------------------------------------------

    5.) Now browse to the 'Policy' tab.

    Under policy settings:

    Group: All groups
    Filter: YouTube domains
    Time Period: Always
    Action: Skip URL blocking (important)
    Comment: YouTube exemption (optional)

    Check the box 'Enabled'.

    Click 'Add', then 'Apply changes'.

    ---------------------------------------------------------------------------------

    6.) This isn't entirely necessary, but you may wish to force a reset.

    Navigate to guardian>proxy>webproxy

    Leave all settings unchanged, hit the 'Save and restart' button.

    DONE!

    NB: By default the flash video filetype .flv is blocked.
    To remedy this, head to 'guardian > filtering> filters'. Edit the 'File security' filter, de-select the 'Video' component then click 'Add' and 'Apply changes'

  9. 3 Thanks to nile_c:

    adhutton (28th September 2009), pete (25th September 2009), Sylv3r (25th September 2009)

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    Did the OP try Niles suggestion? Does it work as that is awesome if it does.. nice one.

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    Yeah - it does work. (Well it works once you realise that the channel owner's love of gambling and whiskey drinking, plus the comments are still tripping the proxy ).

    Got swamped by backlog due to pfy with hamthrax.

  12. Thanks to pete from:

    nile_c (29th September 2009)

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    Cheers for this Nile. This may become useful.

  14. Thanks to Sylv3r from:

    nile_c (29th September 2009)

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    Ok thats great - thanks Nile for this.

    Pete, you know you can get the Smoothwall to remove all comments on Youtube videos if they are tripping the block page ?

    Think you find it under Content security filters.

  16. Thanks to ssiruuk2 from:

    nile_c (29th September 2009)

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    set up a profile for the staff to use on youtube on your filtering program, and when its done, link it to your staff group on AD / LDAP. Should work fine, if you spot a link you think is inappropriate that is coming up in your filtering, set it to be blocked. Simple as.

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    Quote Originally Posted by nephilim View Post
    set up a profile for the staff to use on youtube on your filtering program, and when its done, link it to your staff group on AD / LDAP. Should work fine, if you spot a link you think is inappropriate that is coming up in your filtering, set it to be blocked. Simple as.
    Yeah, but in our case youtube is completely blocked for students due to class control / timewasting concerns. The English dept wondered if it was possible to still keep that block in place and allow students to access specific channels. Niles method works so far.

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    Thanks folks. Any problems, let me know.

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    Upload to teachertube (if not already on it) at home and then access in school that way. Lot easier but does require a modicum of forward planning!!

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    Quote Originally Posted by SteveT View Post
    Upload to teachertube (if not already on it) at home and then access in school that way. Lot easier but does require a modicum of forward planning!!
    Ahahahahahah. Yeah.

    Has anyone else noticed there's a lot of copyrighted/probably shouldn't be on there content on Teachertube?

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