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	Virtual private network - Wikipedia, the free encyclopedia
		A virtual private network (VPN) is a private communications network often used within a company, or by several companies or organizations, to communicate confidentially over a publicly accessible network.
		VPN involves two parts: the protected or "inside" network, which provides physical and administrative security to protect the transmission; and a less trustworthy, "outside" network or segment (usually through the Internet).
		Tunneling is the transmission of data intended for use only within a private, usually corporate network through a public network in such a way that the routing nodes in the public network are unaware that the transmission is part of a private network.
	en.wikipedia.org /wiki/Virtual_private_network (1196 words)

	Abstract
		By using a VPN, the network administrator can ensure that only those users on the corporate internetwork who have appropriate credentials (based on a need-to-know policy within the company) can establish a VPN with the VPN server and gain access to the protected resources of the department.
		VPN services allow users or corporations to reliably and securely connect to remote servers, branch offices or to other companies over public and private networks.
		VPN technology is designed to address issues surrounding the current business trend toward increased telecommuting and widely distributed global operations, where workers must be able to connect to central resources and where businesses must be able to communicate with each other efficiently.
	faculty.ed.umuc.edu /~meinkej/inss690/soria/soria.htm (5593 words)

	VPN (Virtual Private Network) (Linktionary term)
		Anybody can create a private connection by encrypting the contents of the traffic being sent across a network, but truly secure VPNs are better built with the cooperation of service providers that can create dedicated paths with guaranteed service levels across their networks.
		VPNs are relatively easy in ATM and frame relay networks because the network provider creates virtual circuits across the network that provide dedicated bandwidth and path control for the customer.
		However, the virtual network part of the VPN (as opposed to the private part) requires the cooperation of service providers that can establish virtual circuits using traffic engineering techniques that set up paths with reserved bandwidth.
	www.linktionary.com /v/vpn.html (474 words)

	Best Sites For virtual private...
		Virtual private servers or Virtual dedicated servers are a form of virtualization that split a single physical server into multiple virtual servers.
		VPN is an abbreviation for Virtual Private Network.
		Virtual Private Networking: An Overview - This white paper provides an overview of virtual private network (VPN) support in Windows 2000 and discusses some of the key technologies that permit virtual private networking over public internetworks.
	www.bestsitesfor.com /cgi-bin/bsfsearch.cgi?keywords=Virtual%20private... (797 words)

	How To Install and Configure a Virtual Private Network Server in Windows 2000
		Virtual private networks accomplish this by "tunneling" through the Internet or another public network in a manner that provides the same security and features as a private network.
		A virtual private network (VPN) is a means of connecting to a private network (such as your office network) by way of a public network, such as the Internet.
		A VPN in Windows 2000 consists of a VPN server, a VPN client, a VPN connection (the portion of the connection in which the data is encrypted), and the tunnel (the portion of the connection in which the data is encapsulated).
	support.microsoft.com /support/kb/articles/q308/2/08.ASP (5675 words)

	Shands Virtual Private Network (Site not responding. Last check: 2007-10-31)
		The decision to utilize the VPN for business purposes is solely up to the employee/user and their supervisor.
		Virtual Private Network - A wire connecting two endpoints is a physical, private network; a virtual private network is created using logical configurations in two endpoint devices, to simulate a private network, over a public medium (e.g.
		VPNs may connect an individual machine and a private network (client-to-server) or a remote LAN (Local Area Network) and a private network (server-to-server).
	extranet.shands.org /vpn/genfaq.htm (891 words)

	What is virtual private network? - a definition from Whatis.com - see also: VPN
		A virtual private network can be contrasted with an expensive system of owned or leased lines that can only be used by one organization.
		The goal of a VPN is to provide the organization with the same capabilities, but at a much lower cost.
		A VPN works by using the shared public infrastructure while maintaining privacy through security procedures and tunneling protocols such as the Layer Two Tunneling Protocol (L2TP).
	searchnetworking.techtarget.com /sDefinition/0,,sid7_gci213324,00.html (266 words)

	Virtual private network - Free net encyclopedia
		VPN message traffic is carried on public networking infrastructure (e.g.
		VPN involves two parts: the protected or "inside" network that provides physical security and administrative security sufficing to protect transmission (sometimes it is not always the case), and a less trustworthy or "outside" network or segment (the internet is the biggest "jungle").
		Secure VPNs (SVPNs) use cryptographic tunneling protocols to provide the necessary confidentiality (preventing snooping), sender authentication (preventing identity spoofing), and message integrity (preventing message alteration) to achieve the privacy intended.
	www.netipedia.com /index.php/VPN (1326 words)

	Howstuffworks "How Virtual Private Networks Work"
		Leased lines, ranging from ISDN (integrated services digital network, 128 Kbps) to OC3 (Optical Carrier-3, 155 Mbps) fiber, provided a company with a way to expand its private network beyond its immediate geographic area.
		Basically, a VPN is a private network that uses a public network (usually the Internet) to connect remote sites or users together.
		Instead of using a dedicated, real-world connection such as leased line, a VPN uses "virtual" connections routed through the Internet from the company's private network to the remote site or employee.
	computer.howstuffworks.com /vpn.htm (398 words)

	VPN - Glossary - CNET.com (Site not responding. Last check: 2007-10-31)
		A Virtual Private Network, or VPN, is a private network of computers that's at least partially connected by public phone lines.
		A good example would be a private office LAN that allows users to log in remotely over the Internet (an open, public system).
		VPNs use encryption and secure protocols like PPTP to ensure that data transmissions are not intercepted by unauthorized parties.
	www.cnet.com /Resources/Info/Glossary/Terms/vpn.html (63 words)

	Virtual Private Network
		A virtual private network is a secure mechanism to share resources across the Internet.
		Traffic between the machines that are part of the virtual network will be encrypted.
		VPN will only work for computers that are directly connected to the Internet and that are being assigned 'routeable' IP addresses.
	www.cablemodemhelp.com /vpn.htm (710 words)

	Cisco Enterprise: Virtual Private Network Design
		VPN is one of the most used words in networking today and has many different meanings.
		The broadest definition of a VPN is 'any network built upon a public network and partitioned for use by individual customers'.
		The emerging form of VPNs are networks constructed across shared IP backbones, referred to as 'IP VPNs'.
	www.cisco.com /warp/public/779/largeent/design/vpn.html (273 words)

	VPN (Virtual Private Network)
		VPN or Virtual Private Network describes a network that includes secure remote access for client computers.
		Virtual describes the fact that the network doesn't need to be physically connected.
		This access will have the same look and feel as if they are back at the office physically connected to their network, except the reps are working at the speed of their local modem.
	www.real-time.com /security/vpn.html (332 words)

	WindowsDevCenter.com -- Setting Up a Virtual Private Network
		Your best bet is to use a Virtual Private Network (VPN), which allows you to establish a secure, encrypted connection to the office's network, using a public network such as the Internet.
		Think of a tunnel as a private link between the two computers; whatever one sends to the other is only visible to the other, even though it is sent through a public network like the Internet.
		i had three pptp vpn policies while connecting with the first policy it is working fine but when i try to connect through second policy the first polict get disconnected only one policy at a time works i had winxp as os.
	www.windowsdevcenter.com /pub/a/windows/2004/03/09/vpn_connection.html (2108 words)

	Virtual Private Network
		VPN allows customers to use their favorite programs and services much more securely at UH and from home.
		Mac OS X VPN customers should be aware that if they chose to install the VPN client on their systems, it lacks the ease-of-use features that many Macintosh customers are familiar with.
		Although many VPN tools exist that will connect to the UHVPN network, the software currently supported by Information Technology is Cisco Systems, Inc. Cisco VPN 3000.
	www.uh.edu /infotech/php/template.php?network_id=2 (708 words)

	Virtual Private Networking: Frequently Asked Questions
		With a VPN, you can send data between two computers across a shared or public network in a manner that emulates a point-to-point private link (such as a dial-up or long haul T-Carrier-based WAN link).
		Virtual private networking is the act of creating and configuring a virtual private network.
		For remote access connections, an organization can use VPN connections to leverage the worldwide connectivity of the Internet and trade their direct-dial remote access solutions (and their corresponding equipment and maintenance costs) for a single connection to an Internet service provider (ISP) without sacrificing the privacy of a dedicated dial-up connection.
	www.microsoft.com /technet/itsolutions/network/vpn/vpnfaq.mspx (4991 words)

	Virtual Private Network - Wide Area Network - Managed VPN Solution - WAN Wide Area Networking
		Private networks, otherwise known as Wide Area Networks, require businesses to invest heavily in expensive leased lines and Frame Relay circuits to connect offices to their headquarters.
		VPN's for the most part were a great solution for the small to medium sized enterprise but its attractiveness came at a price.
		Velocity Networks is a business ISP and internet services company focusing primarily on serving small business and mid-sized companies within Southern California including Los Angeles County, San Diego County, Orange County, Riverside County, the San Gabriel Valley, and the South Bay.
	www.vel.net /wan-managed-vpn-solution.cfm (526 words)

	upmc virtual private network
		Additionally, a strong authentication mechanism is incorporated to ensure that the user has the appropriate access rights to permit connection to the Health System network and its resources.
		Through use of this technology, confidentiality of all types of information can be insured regardless of the fact that a public infrastructure (the Internet) is being used to transmit the data.
		VPN Only customers are responsible for additional charges.
	www.sgi.net /html/upmc_virtual_private_network.html (369 words)

	What is VPN? - A Word Definition From the Webopedia Computer Dictionary
		(pronounced as separate letters) Short for virtual private network, a network that is constructed by using public wires to connect nodes.
		For example, there are a number of systems that enable you to create networks using the Internet as the medium for transporting data.
		If network connections, sharing computers, router problems or other networking issues are bogging you down, then the PracticallyNetworked.com discussion forum is the place to be.
	www.webopedia.com /TERM/V/VPN.html (445 words)

	VPN - Virtual Private Network, SSL VPN, VPN Remote Access
		Positive Networks, is the leading provider of managed hosted ssl vpn, virtual private networks and remote access services.
		Its flagship Virtual Private Network Service, PositivePRO combines both a client-based virtual private network and a clientless, Web-based SSL VPN into a single remote access service that scales to support thousands of users.
		A Virtual Private Network uses encryption and other security mechanisms to ensure that only authorized users can access the network and that data cannot be intercepted.
	www.positivenetworks.com (505 words)

	Definition of Virtual Private Network
		A Virtual Private Network is software hosted on two machines, which forwards network traffic between them.
		All packets that pass through the network are encrypted, and so provide little or no value to an Intruder.
		A Virtual Private Network makes it possible to pass private data over a public network, thus simulating a private network without the expense of separate, protected communication media.
	mtechit.com /concepts/virtual_private_network.html (99 words)

	Network Security Software: Helpful Buyer's Guide and Free Software Protection Quotes from Leading Vendors
		There was a time when accessing your company's data network from a remote location, or having two or more offices connected to the same private network, was reserved only for companies with deep pockets who could afford to lease private lines from the phone company.
		A VPN is also ideal for traveling employees who can use their laptops and hotel phone connection to access their company's network, or for full-time employees that may work at home at night.
		A VPN service provider is paid to take care of the details so you don't have to - they will implement the VPN and provide around-the-clock management and monitoring from an off-site network center.
	www.buyerzone.com /internet/internet_security/buyers_guide3.html (532 words)

	FindVPN (Virtual Private Network) News Headlines and Resources
		But the wireless network is an open network, and the IDA says users would have to rely on their own security networks like VPN.
		In a sense, VPNs are similar to wide area networks (WAN) or a securely encrypted tunnel, but that they are able to use public networks like the Internet rather than expensive, private leased lines.
		Most modern VPNs use some kind of cryptosystem, in order to scramble data into cipher text, which is then decrypted into readable text by the recipient.
	www.findvpn.com (748 words)

	VPN (virtual private network) (Site not responding. Last check: 2007-10-31)
		Through the use of encryption, VPN connections are protected from outside users, safeguarding data and allowing the secure, remote use of important applications.
		IPSec VPNs are based on gear that is placed between trusted machines and a shared IP network.
		MPLS VPNs are based on devices within the service provider's network that runs over paths whose integrity the provider maintains.
	www.networkworld.com /details/472.html (990 words)

	VPN: Virtual Private Network
		Virtual Private Network (VPN) refers to simulating a private network over the public Internet by encrypting communications between the two private end-points.
		These new VPN technologies are fully compatible with TCP/IP, the choice of technology for data routing and transportation of the world.
		In addition, the MPLS VPN, a connectionless VPN, is fully compatible with the TCP/IP technologies and the Internet world, which has significantly lower cost of deployment and operations.
	www.javvin.com /networksecurity/vpn.html (713 words)

	Security Virtual Private Network # All the most important subjects of perimeter security, remote access, resources ...
		Security Virtual Private Network # All the most important subjects of perimeter security, remote access, resources separation are addressed.
		Inside Network Perimeter is a practical guide to designing, deploying, and maintaining network defenses.
		This book is perfect for a network engineer wanting to his or her security skills for both design and administration purposes.
	www.curtissmith.com /Security/Security-Virtual-Private-Network.html (1057 words)

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