Unit 3 Assignment 1 Vpn Research Paper

A VPN is a private network that uses a public network (usually the Internet) to connect

VPN is the abbreviation of Virtual Private Network. A VPN can extend a private network (like local network) across a public network, such as the Internet. It enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network, and thus benefit from the functionality, security and management policies of the private network [7].

OpenVPN is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections and remote access facilities. OpenVPN allows authentication using certificates or username/password. OpenVPN can work in two different modes regarding encryption. It can use static encryption or Public Key Infrastructure (PKI). The advantage of static encryption is that it is very easy to configure. The disadvantage of this type setup is that if your encryption key is compromised, all VPN data can easily be decrypted. The PKI mode resolves many of the issues static encryption has. It

4. Pg 319 VPN. A virtual private network. It’s a type of outsourcing. They use privacy techniques such as tunneling.

VPN refers to the networking technology Virtual Private Network. A VPN allows users connected to this network the ability to access any website or computer data from any location in the world with dedicated and secure networking environment rather than being present in a public server. Majority of VPN users belong to business class industry and educational purposes. VPN networks are used in this manner because majority of VPN networks offer the features like encryption and anonymity which increases the privacy and security benefits while using the VPN network. VPN networks also allow the user ability to perform activities on the internet as if they were accessing

Douligeris, C., Serpanos, D. (2007). VPN Benefits. Network Security: Current Status and Future Directions. John Wiley and Sons

Virtual Private Networks (VPNs) are used to allow a remote public connection to an internal network. A VPN is essentially a virtual tunnel connecting a remote user (Tunnel Vision). The traffic within the VPN tunnel is encrypted, and there are two ways to do this. One way is Internet Protocol Security (IPsec) and the other is Secure Sockets Layer (SSL).

VPN configurations will be used between each location to ensure site-to-site connectivity. The VPN will allow employees to access the company's intranet from home or while traveling outside the office, and site-to-site VPNs allow employees in geographically disparate offices to share one cohesive virtual network. A VPN can also be used to interconnect two similar networks over a dissimilar middle network; for example, two IPv6 networks over an IPv4 network.[6] which will

VPN stands for a Virtual Private Network. It’s a means of connecting computer devices to the internet through data or broadband connection while adding a layer of privacy to what you do online. Virtual private network (VPN), presents excellent control of how you are identified online. VPN generates a virtual encrypted channel between your device and a remote server run by a VPN service. Internet traffic is routed through this channel, so your Internet Service Provider can't see your data. Each packet of data transmitted from your device is put inside another packet. Think of it as inserting a letter into an envelope to prevent its contents from being read during transport. Your computer shows the IP address of the VPN server,

This type of network is designed to provides a secure, encrypted tunnel in which to transmit the data between the remote user and the company network” (Beal). VPN uses encryption to provide data confidentiality. Virtual Private Networks makes use of encryption and special protocols to provide extra security.

Each VPN has its pros and cons. IPSec licenses usually come included with the purchase of a firewall, processing overhead is low which potentially allows thousands of simultaneous connections and the technology is mature and well understood. On the flip side, client software needs to be installed on each machine needing access to the network, which can cause IT support issues, especially during technology upgrades or refreshes. SSL VPN’s are installed directly from the browser on each device, which reduces the IT resources required for implementation. It’s also available for mobile devices, allowing for flexibility in work location and equipment. The downsides are that more complex setup is required on the firewall side and additional processing overhead is also required, which means that less connections are available. SSL VPN is also often sold as an add-on product for firewalls too, meaning an extra cost is involved. For mobile VPN’s, the biggest positive is the flexibility it offers employees in regards to location and connectivity. The biggest drawbacks however are the potential security holes when

Abstract - Nowadays, SDN is most emerging technology. It is one of the most promising area in which you easily depend on networking. It is going to virtualization to reality.SDN is basically separate the control plane and data plane physically. It is dynamically programmable that’s why they have more security issues if they have static programmable it is not much as insecure. Due to dynamic factor they are facing many security threats related to SDN.We are discussing on SDN security threats and we present its new framework architecture model.

VPN is a Virtual Private Network, a network within the original network which won’t require a separate links or communication lease lines for data transmissions. VPN uses a shared or public unsecured network to transfer the data from one end to another end through proper routing. As the transmission path is an open source security is the main concern for VPN technology. VPN is more flexible and uses internet as a mode of network communication rather than using private lease lines. VPN are generally implemented in Intranet, Extranet, within the same company or for a remote access communication. As the demand of internet is increasing the need of a secure VPN network is also increasing. VPN technology uses data encryption or encapsulation or both. VPN uses LAN-to-LAN, PPTP (Point to Point Tunneling Protocol), L2TP (Layer 2 Tunneling Protocol) or IPsec (IP Security) VPN protocols. Of the above IPsec VPN is the most secure and the most complex to troubleshoot. [Ste1999]

VPN is a dedicated communication between multiple geographically separated sites. VPNs belong to a family of overlay networks that use IP tunnels to form a virtual network on top of the Internet. These tunnels use cryptographic techniques to provide robust security and privacy. To a remote user, VPN provides all the benefits of a private network, while corporations benefit from the low operational costs, high security, and instant global coverage offered by it.

Imagine space being the internet and a public spacecraft being the way to travel between planets. Consider the spacecraft’s as webservers. Now traveling in these spacecraft is unsafe anything can happen everybody can see what you’re doing and so on. Now if you are a company and you want to travel to another planet (another office) and have sensitive information then how could you travel though Space (internet) in secure manner? The only way would be if you own your own spacecraft to travel through space. Your own spacecraft would be consider your VPN.