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How do I disable internet access through browsers only?

I want Microsoft Outlook to have access but restrict those to all browsers (IE, Firefox, Chrome, etc.) I managed to find the LAN settings for Internet Explorer and configure the IP address to 192.168.1.1 with Port 30. This, of course, is a dummy address and restricts users from accessing the internet. As well, I changed the security settings under properties (when right-clicked on the browser icon) to deny read/write privileges to the file.

However, is there a much simpler process to do so; in case the user(s) decide to install other browsers by a USB device, internet access will not be possible.
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johnb6767
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Is Outlook running internally on Exchange?

Are the user's an Admin of their systems? If so, there isn't much you can do that an admin canNOT UNdo.....

I would either look at software restriction policies, to prevent apps from running (firefox.exe/chrome.exe etc...), and make sure they are Limited Users. Then you can start to control the user base.....
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ASKER

No, the users are not the admin of the systems. My supervisor and I have admin privileges only. I have also looked into restriction programs but have not successfully found any (freeware desired).

I will be working on the browsers later this afternoon and will definitely try to look into the restriction policies.
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MRiccioni
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ASKER

Users need Microsoft Outlook to communicate with each other and receive outside emails as well. However, the president of the company wants to restrict internet access because of personal leisure use.

I will check out the openDNS program to block sites.
It can be easily done with a Internet security software.
You surly have one of them on your computers.
My company has done this to us and whenever we run any application it says that you're not allowed to access internet !!!
They use Avira Antivirus and they only set Internet explorer in the whitelist !

So if you have any security software or firewall Add only Outlook to the whitelist.
Normally other programs are black listed !!!
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ASKER

I registered with openDNS yesterday. Will this allow me to restrict sites then?
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OpenDNS is EXACTLY what I was looking for. No need to install any kind of software. Is there a limit as to how many computers I can use this service?
Glad I could help.

Nope there is no limit. The best thing is you can customise the block page as well.

Obviously for more advanced reports, better customisation you can pay, but the free service has always worked for me and my clients.
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ASKER

Great, thank you.
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ASKER

Your OpenDNS account has reached its limit of one network. You should upgrade to OpenDNS Enterprise to add more networks and get more great features!

Please advise.
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Please disregard the previous message. Thanks for everyone's help!