Re: Rebinding Windows Internal Network

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Styxx

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The following does not take the place of a good firewall like Free Zone Alarm from http://www.zonelabs.com.

Read about Windows Network Bondage and Rebinding Windows Internal Network and keeping your private information safe, by accessing and reading thoroughly the Shields Up site at http://grc.com/su-bondage.htm Before starting.

To Close all your ports to hackers, crackers and other knuckleheads here's how:

The trick is to Unbind (uncheck) everything but NETBEUI to Network Protocols like TCP/IP, and Hardware Transport features like Dial-Up Adapters and only bind Network Clients like Client for Microsoft Networks or Microsoft Family Logon to NETBEUI, not TCP/IP and Dial-Up Adapter. Done right, testing your ports on the Shields Up website will show all tested ports as Closed.

To start, you should only have Client for Microsoft Networks and/or Microsoft Family Logon, TCP/IP and Dial-up Adapter in the opening screen of the Network Control Panel as installed components if you're just a home user not on a LAN. Don't delete entries if more than this are present. The key is to unbind (uncheck) everything but NETBEUI from TCP/IP and Dial-Up Adapter. Your Configuration may vary to start.

Go into (open) the Network Control Panel (Start; Settings; Control Panel; Network); Double-click TCP/IP (and all Network Protocols and Hardware Transport services each in turn); Click the Bindings tab; Uncheck Client for Microsoft Networks and/or Microsoft Family Logon found there; Click Ok; Click No to, 'You have not selected any drivers to bind with. Do you want to'?; Double-click Dial-up Adapter; Click the Bindings tab and uncheck Client for Microsoft Networks and/or Microsoft Family Logon; Click Ok. Install NETEUI - Click the Add button; Highlight Microsoft on the left; Highlight to Install NetBEUI on the right; Click Ok. Double-click NETBUEI; Click the Bindings tab and ensure Client for Microsoft Networks (or Microsoft Family Logon) and Dial-Up Adapter or TCP/IP is checked; Click Ok to all subsequent screens to exit out of the Network control panel; Close all open programs and get off-line; Click Yes in the System Settings Change Request window to restart your computer; Done.

It's not necessary to add NETBEUI to the Network Control Panel list if you're using WinMe or higher, just Win9x.


Here are some example scenarios to demonstrate the application of these guidelines:

Users who connect to the Internet through a Dial-Up Adapter, and who do not also have a local area networking adapter will simply want to leave TCP/IP and NetBEUI bound to their Dial-Up adapter while unbinding anything else (like the IPX/SPX transport protocol.)

Users who connect to the Internet through a Cable Modem or DSL connection will have a Network Adapter of some sort installed. This adapter should be bound to TCP/IP and NetBEUI and unbound from anything else (like the IPX/SPX transport protocol.) If the system also has a
Dial-Up Adapter it can be unbound from the NetBEUI transport since the network interface card will serve as NetBEUI's anchor.

Users with local area networks who want all of their machines to have access to the Internet should bind TCP/IP and NetBEUI to their network adapters and unbind anything else. And within that network, machines which do not need (or should not have) Internet access (such as, perhaps, a young child's computer) should only have NetBEUI bound to the network interface since that machine would have no need for the Internet's TCP/IP transport.
 
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