Definition of VPN
What is VPN?
A private communications network usually used within a company, or by several different companies or organizations, communicating over a public network. VPN message traffic is carried on public networking infrastructure (e.g. the Internet) using standard (often insecure) protocols.
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VPN
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When Security Counts: Securing a Test Server with a VPN Connection
A virtual private network (VPN) is a logical link that connects shared or public networks. In this case study, a router-to-router VPN connection securely connects classroom computers to an isolated and secure internal network segment hosting an assessment server. This paper describes the design choices of a deployment for a router-to-router VPN connection using the Windows 2000 platform VPN server.
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Remote Access VPN - Security Concerns and Policy Enforcement
This paper serves to review the business reasons for the implementation of remote access VPN, to address security policy considerations, and subsequent enforcement of security policy through the use of a Cisco Concentrator and Zone Labs' Integrity Server. Realizing there are numerous manufacturers marketing diverse methods of VPN implementation, focus will be solely upon the Cisco 3000 Series Concentrator for remote user access; and Zone Labs' Integrity Server for enforcement of policy, thus allowing for specific details to be addressed - rather than paint a broad, general picture.
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Business Partner VPN Needed Now
This document is intended to take a look at Business Partner VPN and focus on challenges now being dealt with in the face of requirements for a VPN that promises end to end security between two separate business entities and even between the users within those entities. With Web Services technologies evolving quickly the need for end to end security with Business partners is excelerating. While emphasis will be on what is yet needed, appreciation for and discussion of, what is, and why, will be offered.
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Implementing "Dual-Sided" VPN's
In my current position, I am required to provide secure communications to all sites where our project servers are located. Since much of our site-to-site communications are provided by public networks, a solution had to be found that could use a public network for data communications and that could satisfy the security requirements for data transmission that were given. Several options were evaluated.
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Creating a Secure VPN with Cisco Concentrator and ACE Radius/SecurID
Virtual Private Network (VPN) technology has done wonders for the productivity of the common corporation. Using a VPN, companies can expand the reach of their corporate network beyond their expensive leased lines by using the assets provided by the Internet. This "reaching out" of corporate America has allowed for employees to securely access network resources while at home, allowed for secure partner communication, and decreased the costs necessary to do business. Instead of paying for expensive leased lines or incurring a productivity slowdown via usage of floppy transfer, employees and partners can now work remotely as if they were physically connected to the corporate network. Home users have begun to upgrade their home Internet connections to ISDN, DSL, and Cable allowing for greater speeds than ever before. These greater speeds allow for little speed penalty when telecommuting. Broadband connectivity seems like a perfect match to the corporate VPN world.
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VPN-1 SecureClient - Check Point's Solution for Secure Intranet Extension
Remote users are at risk when using broadband connections to access organizational resources. The VPN-1 SecureClient v4.1 and VPN-1 SecureClient NG products from Check Point Software Technologies Ltd. provide secure VPN access to these resources while protecting the remote machine with a personal firewall. These products can only be used when integrated with existing Firewall-1 v4.1 and Firewall-1 NG Check Point software, and are managed and maintained through the Firewall-1 management console. SecureClient is widely compatible and has a small footprint, making it appealing to organizations that use Check Point products and are considering such functionality.
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Comparing BGP/MPLS and IPSec VPNs
Network managers have many options for site-to-site connectivity. Traditional leased lines, Frame Relay, and ATM based connectivity solutions are giving way to newer VPN technology. Two types of modern VPNs, BGP/MPLS and IPSec are becoming increasingly attractive to network managers. This paper gives an overview of MPLS and then discusses the mechanisms used to provide VPNs based upon BGP/MPLS and IPSec. The paper assesses the security provided by both solutions and suggests guidelines for network managers to assist in evaluating these two options.
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Knock Knock... Who's there? Do you know who is accessing your VPN?
A virtual private network is several security technologies. These include encryption, authentication, and key management. The idea of the virtual private network is to give users of your data access securely whether they are across town or on the other side of the world. While VPNs secure data by encrypting the data across public networks, potential information security risks are your remote users' networks, PCs, systems, etc. How do we know who is on the other end of the VPN? How can we make sure that the person or device on the other end is who they say they are? The answer is strong authentication.
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What is a MPLS VPN anyway?
This paper is about a new technology, MPLS VPN, that is being offered by service providers to compete with Frame Relay and ATM networks. When a company wants to connect its geographically different sites they don't have to purchase a Frame Relay circuit, or purchase an ATM circuit, or lease a dedicated telco line. They can now go to their Internet service provider and purchase a MPLS VPN to connect their geographically different sites. This paper will give a basic understanding of how a MPLS VPN works.
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Securing Remote Users VPN Access to Your Company LAN
This paper is intended to be an introduction to the Security issues you face and the solutions you can choose between, when you want to give your remote users access to your Company Network via VPN. This topic is very broad, and has many aspects. This paper only focuses on the security aspects of the remote users pc, not including the security of different VPN-solutions, encryption techniques or other aspects related to the VPN-tunnel itself. It assumes a basic understanding of VPNs, IDS technology and common Industry terms and acronyms.
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