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USB laptop firewall runs Linux

USB laptop firewall runs Linux

Posted May 31, 2007 17:51 UTC (Thu) by amarjan (guest, #25108)
Parent article: USB laptop firewall runs Linux

There is also a question about the efficacy of the device. It doesn't have any network jacks on it, so it's not a conventional hardware firewall. It operates like a hardware accelerated software firewall by installing drivers to "hijack" network connections.

The question then is, is it possible to subvert the (Windows) kernel before this device can intercede?


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USB laptop firewall runs Linux

Posted Jun 1, 2007 1:35 UTC (Fri) by smoogen (subscriber, #97) [Link]

It is always possible to hijack the kernel before something else gets involved. It will be interesting to see how well the windows drivers are built to do that. Plus the copying from one flash to another tells me you have 1000-10k boots before failure (or some vastly smaller number depending on mean-time-to-failure realities.)

USB laptop firewall runs Linux

Posted Jun 1, 2007 22:22 UTC (Fri) by tzafrir (subscriber, #11501) [Link]

The device does have two network interfaces:

http://www.yoggie.com/gatekeeper_pro.shtml

It has basically two modes of operation. The one covered here is one in which it connects through USB and intercepts all traffic. This requires a driver currently available for XP alone.

But it can also work as a transparent personal (Ethernet) firewall. At least if all of your connections are through Ethernet. This will work with any OS and requires no software installation on the PC.

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