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stop download via ISA

Posted on 2009-04-06
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Last Modified: 2013-11-16
Hello, Can you tell me exactly how to stop all downloads via ISA but not stop normal browsing. Also is it possible via grouppolicy. THX.
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Question by:prokopovra
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by:Raj-GT
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You have to create a new firewall policy above your standard internet browsing policy in ISA to deny "Application" content type. It will require some level of tweaking to catch all downloads but it is possible.
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by:prokopovra
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Can you supply that step by step please, Thank you. Also Want to ask you about ISA 2006 , Is it possible to use DDNS services  on ISA server in 2 locations and open a branch to branch always open vpn tunnel for two workgroup networks and not AD , and will ISA work on workgroup networks with dhcp and dns. Thank you.
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Raj-GT earned 500 total points
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To create an access rule...
Right-click Firewall Policy > New > Access Rule >  Type name > Select Deny > Selected protocol and add FTP, HTTP and HTTPS > from - select internal > destination - select external > keep All users or select the user group you want to restrict access to > Finish

Right-click the new access rule you created and select properties. Go to Content Types tab and select "Selected content types" radio button and check "Application" and "Compressed Files" > OK. Move this rule above your current internet access rule, and apply changes.

This should prevent your users from downloading most executables and compressed files from the internet.

As for the VPN question you can use DDNS names and create an L2TP VPN Tunnel between ISAs. The remote network doesn't have to be part of the domain.
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