Virtual Private Networks Essay

Alice is arguing in the favor of SSL. Some reasons she might argue that SSL is a common protocol and most web browsers have SSL capabilities already built in (Tony, 2003). Because of this, almost every computer in the world is already equipped with the necessary software to connect to an SSL VPN. Another pro of SSL is that they provide tunnels to specific applications rather than to the entire corporate LAN. Any users on the SSL VPN connections can only access the applications that they are configured to access rather than

TLS (Transport Layer Security) is the successor to another security protocol; SSL (Secure Sockets Layer) which was originally developed by ‘Netscape’ (HowStuffWorks "SSL and TLS". 2014). It is a cryptographic security protocol which was designed primarily to ensure communication security across the internet. Communication security is achieved by the use of X.509 certificates and hence asymmetric cryptography which allows the exchange of a symmetric key, which can then be used to encrypt the data that is being transmitted between both parties involved in the communication. The protocol is made up of two main layers; TLS Record Protocol and TLS Handshake Protocol. TLS will be most commonly recognised when ‘https’ is noticed in

Which of the following is protocol used to enable communication securely between points on a Virtual Private Network (VPN)?

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

The internet layer is built up of four core protocols: IP, IGMP, ICMP and ARP. Internet protocol (IP) is responsible for routing, IP addressing and breakdown/reassembly of data packets, address resolution protocol (ARP) is responsible for mapping an IP address to a device on the local network, internet control message protocol (ICMP) provides diagnostic information and error reports on lost packets, internet group management protocol (IGMP) controls who receives IP datagrams in a single transmission. The transport layer is built up of two core protocols: TCP and UDP. Transmission control protocol (TCP) sequences and acknowledges packets sent and their recovery when lost in transmission allowing the computer to make and maintain network conversations where applications exchange data, defined as a connection-oriented protocol meaning the connection is maintained until the programs has finished exchanging data. User datagram protocol (UDP) This is used to transfer small amounts of data when the use of error correction isn’t needed increasing the speed of the transmission, common in multi-player video games as the user will not need to receive packets of past events in the game so the error correction featured in (TCP) would be

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

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].

IPSec can be used in two modes: Tunnel encrypts the header and the payloadof each packet while transport only encrypts the payload.

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 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

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

Advancements in the information technology sector have brought many benefits to the people all around the world.  Today with computer networking, we can chat, speak and see each other over a long distance. Data communication refers to the transmission of the digital signals over a communication channel between the transmitter and receiver computers. Communication is possible only with wired and wireless connectivity of the computers with each other.