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TOPIC: Blocking Google Chrome VPN Proxy Extensions

Blocking Google Chrome VPN Proxy Extensions 05 Apr 2017 20:18 #2511

  • John Burnett
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Anyone have a solution using Filewave to block students from using VPN Proxy Extensions to bypass our network filters?

Blocking Google Chrome VPN Proxy Extensions 20 Apr 2017 19:27 #2525

  • Jonathan Cohen
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There are a couple of solutions, neither are directly tied to Filewave. We use Untangle for our firewall and filtering system and that platform is able to block the VPN signatures when filtering. Another option (if you have G-Suite for Education is to use your domain settings to whitelist allowed apps (or blacklist VPNs). Blocking the traffic on the outbound gateway has been more effective for us.

A more heavy-handed solution is to directly reset the user's Chrome extension directory - this can be done with FW or FW mac profiles.


Posted: 3/26/15 at 12:18 PM by sburrows (from a competing product forum, but we've used this as well).

We currently use this script at login to delete the users Chrome extensions directory, re-create it, and change the permissions on the new folder. It seems to be working fairly well.

I believe someone on here posted this script, so I can't take credit for it.
#!/bin/sh
# current user is $3

# remove the google extensions directory
rm -rf "/Users/$3/Library/Application Support/Google/Chrome/Default/Extensions"

# recreate the google extensions directory
mkdir "/Users/$3/Library/Application Support/Google/Chrome/Default/Extensions"

# change the permissions on the folder
chmod -R 444 "/Users/$3/Library/Application Support/Google/Chrome/Default/Extensions"

You can protect wanted extensions by diving deeper into the Extensions Directory to remove content and then setting the permissions - effectively locking the user from adding new extensions.
The following user(s) said Thank You: John Burnett

Blocking Google Chrome VPN Proxy Extensions 20 Apr 2017 19:41 #2527

  • Jonas Bygden
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We have firewall rules to deal with that.

Blocking Google Chrome VPN Proxy Extensions 30 Jun 2017 07:26 #2590

  • Battle69
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I never use browser based VPN services and have bought the Express vpn for kodi . It is the best service and is extremely fast. I can use it on multiple devices so it costs me very reasonable as my internet surfing on phone and computer is also protected with the help of this VPN.

Blocking Google Chrome VPN Proxy Extensions 29 Jul 2017 13:33 #2636

  • Jane Woodside
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This is probably a silly question....

What is $3 representing?

Blocking Google Chrome VPN Proxy Extensions 29 Jul 2017 13:35 #2637

  • Jane Woodside
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Can you expand a bit more on this. What is an example of a firewall rule you set to stop students from installing browser VPN Proxy extensions?

Thanks.

Blocking Google Chrome VPN Proxy Extensions 31 Jul 2017 10:43 #2638

  • Hans-Joachim Adermann
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jwoodside wrote:
What is $3 representing?


it is the users home folder name


Blocking Google Chrome VPN Proxy Extensions 31 Jul 2017 13:50 #2639

  • Jonathan Cohen
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$3 is a variable used specifically at login to identify the logging in user. It can also be used after login to return all logged in users on the target system.
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