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Where can I find documents to learn more about VPNs?

Could you please give me a link where I can find the more information about VPNs. And also am very new to this field and I'm looking for basic information.

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There are many Web pages that provide VPN tutorials. It really depends on what you are looking for. For a high level understanding about VPNs and their applications a simple Google search (VPN tutorial or VPN introduction) will give you good results. I would also narrow my search for VPN info by being specific on the technology: IPsec or L2TP VPNs, MPLS and IP VPNs, SSL based VPNs, etc.

If you want a detailed tutorial with specific protocol understanding then something that I refer to a lot is VPN Consortium's web page. Here is a link to the white paper section of their web page: http://www.vpnc.org/white-papers.html

SearchNetworking.com houses many documents addressing basic VPN information. The links are as follows:
VPN FAQs

Tips and guides

Best Web Links

White papers

This was first published in August 2003

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