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how to block HTTP Tunneling

Hello,
I am using Astaro version 7.504 and i face problem to block HTTP tunnelling [:(].
users on network can install hotspot software and can bypass web filter.

this software use openvpn software to establish HTTP tunnel [:@]
i tried to block all VPN using packet filter but I failed it is still connected

anyone can help
Thanks

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0 Scott_Klassen over 15 years ago

You can try blocking the Remote Access URL Filtering Category. If you find that your users are utilizing a new service that isn't categorized yet, you can 1) manually add it to your URL blacklist and 2) submit the site for categorization at TrustedSource - Customer URL Ticketing System. Choose SmartFilter XL as the database.
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0 Scott_Klassen over 15 years ago

You can try blocking the Remote Access URL Filtering Category. If you find that your users are utilizing a new service that isn't categorized yet, you can 1) manually add it to your URL blacklist and 2) submit the site for categorization at TrustedSource - Customer URL Ticketing System. Choose SmartFilter XL as the database.
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0 gyt over 15 years ago in reply to Scott_Klassen

Thank you for answering
but there is no Remote access category in Astaro url filter. Also i checked the mcafee web site that you sent i found the site for hotspot software " AnchorFree.net" listed under
- Media Downloads
- Software/Hardware
by default i stopped those sites but also the software can connect and bypass the url filtering.
i think the problem is how to block the HTTP tunnelling because it create vpn tunnel through HTTP port

waiting help
thanks
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