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Beginners Guides: VPNs and Internet Connection Security
Beginners Guides: VPNs and Internet Connection Security - PCSTATS
This article is intended to deal with creating Virtual Private Networks (VPNs) to connect a home network with the outside world.
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External Mfg. Website: PCSTATS Nov 16 2005   M. Dowler  
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Creating a VPN in Windows XP

Now that we have covered some of the theory behind Virtual Private Networks, let's go about setting one up. The following set of instructions will allow you to set up a Windows XP computer in your home network to accept VPN connections from the internet, allowing you or other users to access your network remotely as if you were on a locally connected computer. Once that is configured we will then go through the procedure to create and dial a VPN from a remote computer.

First some notes about Windows XP and VPN connections... Windows XP is designed for only a single user to connect via VPN per interface, up to a maximum of three concurrent connections. In other words, if you have a single connection to the Internet, you can support a single VPN connection through it at any time.

As mentioned earlier in this article, PPTP VPNs, though less secure than their L2TP/IPSec equivalents, are recommended for home users, due to the comparative ease of setup. The difficulty with L2TP is that it is oriented towards use in larger network environments and Windows domains, and by default requires a security certificate to operate.

In theory, a L2TP VPN can be used by setting a preshared key on each system, but hosting a VPN like this within Windows XP is difficult. It can be done, certainly, and there are even methods of generating your own security certificates without the use of a Windows server OS out there (https://www.shininglightpro.com/index.php?treeloc=36 ), but it's labour intensive, and beyond the scope of this article.

We will cover setting up both types of VPNfor client connections, but only PPTP for creating a VPN server. To set up your computer to accept VPN connections go to start/programs/accessories/communication and start the new connection wizard.

Select 'set up an advanced connection.'

Select 'Accept incoming connections.'

Skip the 'devices for incoming connections' screen, as it is only relevant for local computers, not remote ones. Hit 'next.' Select 'allow virtual private connections.'

The next screen allows you to select which current user accounts have access to the computer remotely through a VPN. Please ensure that the account(s) you select have secure passwords set on them. You can also create a new user on this screen by using the 'add' button.

Highlight 'internet protocol (TCP/IP)' and select 'properties.'

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Contents of Article: PCSTATS
 Pg 1.  Beginners Guides: VPNs and Internet Connection Security
 Pg 2.  Network Tunneling
 Pg 3.  Types of VPN - PPTP
 Pg 4.  L2TP with IPSec
 Pg 5.  — Creating a VPN in Windows XP
 Pg 6.  Setting up a VPN continued
 Pg 7.  VPN and Security Options

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