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Windows 7: Blocking outbound traffic (data out)

01 Jul 2010   #1

Blocking outbound traffic (data out)

My ISP charges for outbound traffic, even though they dont pay for it. According to them it is to stop people sharing files and stuff illegally. In my case, it's accounting for 10% of my allowance, and I've tried everything I can to stop it.

Somehow, people are getting into my network and transferring data. I've blocked all the ports for P2P programs that I can find, I've set up OpenDNS, I've told the kids to stop using P2P and Torrent programs.

My router (DLINK DIR655), doesnt tell me anything.

In the 29th of June I had uploaded 2314mb. On the 30th it was 5564mb (I got this from the Optus website), yet the kids say they didn't upload anything, and looking at their computers I can't see anything to prove that they did. So I have to give them the benefit of the doubt.

Is there a way to lock my network down so that they can't share stuff or open ports and no one can get in?

Is there a way to block the installation of programs on their computers without setting them up as standard users and creating an administrative nightmare for myself? I've looked at parental controls but it doesn't offer a suitable solution.

Is there any software that can keep a history of what ports have been opened on a network and what data has been moved around?

This is driving me nuts.


My System SpecsSystem Spec
01 Jul 2010   #2

W7-Enterprise + WS-2008 (Converted to Workstation)

hi !

what firewall are you using ?
it should be able to provide you with the history.

are you letting the kids use your ADMIN-account ??
of course they should use a USER-account, otherwise they can install software & change important settings and mess up your computer.
My System SpecsSystem Spec
02 Jul 2010   #3


Sorry my previous post was not clear.

All kids have their own computers. I want them to be able to install programs and games without having to bother me every time they want something installed or updated, or patchs applied. With 10 PCs in the house, that gets to be quite a pain.

I have blocked common P2P programs with the D-LINK DIR655. All PCs Use the Windows Firewall. The log in the DLINK tells me nothing. I've configured the router to use OpenDNS for content filtering as well as set up a dozen rules to block known ports for P2P programs, and filled up the routers webfilter (it only holds 40 entries).

They used to change their IP addresses to get around the rules, but I've used reserved DHCP/MAC addresses to stop that.

Am I missing a log file somewhere?

My System SpecsSystem Spec


 Blocking outbound traffic (data out)

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