Virtual Network : Virtual Private Network Essay

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).

Security protocols are primarily & commonly used to protect communication via the web, VPNs (Virtual Private Networks) and the transferring of files. This report will now go on to compare two main security protocols – TLS & SSH. They will be compared in a way that takes into account both the similarities and differences in approach and features and their relative advantages and disadvantages. This information will then be backed up by examples where each protocol would be preferred to the other in a certain situation along with my own personal reasoning based on the research that has been carried out on my part.

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

Versa VPN is working as VPN vendor since 2010 to facilitate the users with secure and anonymous browsing. They provide an above average service to their clients with their business philosophy to deliver the best internet security with finest levels of quality keeping it within the reach of common internet users. Versa VPN suppliers maintain its quality and make sure it users’ end by restricting 20 number of clients at each server. They are providing best customer care support through different methods including email address, telephone number, ticket support, Twitter account, and Live Chat option. They also ensure a reply to every query within 30 minutes.

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

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

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].

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

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.

A VPN is a secure protected network called a tunnel for communication purposes over long distances using the Internet as its means of transport. Due to the nature of the communication or transmissions that are being utilized by say a larger corporation, secure and reliable communication is a must. In the beginning these VPN connections were established using one or more dial up modems for users to access the information. Authentication was established by requiring the correct user name and password. As time went on as always things changed, new technology and advances in communication as well as equipment allowed the VPN to evolve and expand. To ensure security, the virtual tunnel is encrypted. VPNs use several protocols in order to encrypt

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,

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

VPN is a private network that uses a public network, usually internet, to connect remote sites or users together. It uses virtual connections routed through the Internet from the business's private network to the remote site or employee. VPN is used mostly by the employees who prefer to telecommute or work away from the office. By implementing VPN, the businesses make sure the data is encrypted and can’t be read by the ones who try to intercept the data. The computers at each end of the tunnel encrypt the data entering the tunnel and decrypt it at the other end. An encryption key determines what computations to perform on data in order to encrypt or decrypt it, however, a VPN needs more than just a pair of keys to apply encryption. Hence, a

Network virtualization is a technology, which enables combining computer network resources into a single platform appearing as a single network. In this form of virtualization, all hardware and software in the virtual network appear as a single collection of resource. The goal of network virtualization is to provide systems and users with efficient, controlled, and secure sharing of the networking resources.