Virtual private networks (VPN) provide an encrypted connection between distributed sites over a public network (e.g., the Internet). By contrast, a private network uses dedicated circuits and possibly encryption. The basic idea is to provide an encrypted IP tunnel through the Internet that permits distributed sites to communicate securely. VPN's permit secure, encrypted connections between a company's private network and remote users through a third-party service provider. A VPN can grow to accommodate more users and different locations much easier than a leased line. In fact, scalability is a major advantage that VPN's have over typical leased lines (dedicated circuits). Unlike with leased lines, where the cost increases in proportion to the distances involved, the geographic locations of each office matter little in the creation of a VPN. Descriptions / Types Virtual Private Networks allow enterprises to utilize cost effective, secure, and scalable hardware to extend their wide area network. These networks are cost effective in that they are able to connect remote users to the corporate network without the need for expensive dedicate WAN links or modem banks. They also allow remote users to utilize their own internet connections from their remote site which also saves the corporation money. In essence, the longer the distance is between the connections, the more savings the company can realize. Increased security is also a factor in that it provides encryption between the two sites and that helps protect against unauthorized access to the system. The system is also scalable in that additional hardware is easily added to the network to allow for more users. This allows the corporation to add significant amounts of new users without significantly changing the network infrastructure. VPN's are typically platform independent with the majority of the VPN's occurring on UNIX, Windows, or Macintosh. They all operate seamlessly; offer strengthened security, mobile user support, and ease of use. Site to Site Site to site VPN's extend the wide area network in the sense that they provide large scale encryption between multiple sites such as remote offices and central offices, and also over the internet. There are two main types of site to site virtual private networks, internet and extranet (HowStuffWorks.com). Intranet based VPN's are used for connecting one or more remote locations to the existing LAN, while an extranet based systems connect one or more different companies to the existing LAN to create a shared environment or partnership. Site to site VPN's typically use a tunnel in which the communication between the two sites is handled from router to router, where the communication between the two is seamless to the end user.
With a Virtual Desktop Infrastructure, you only have to deal with the server on your network. So, when you want to install a new program, you install it just once on the server. All of your users then access the application through their clients. This saves time and money that would be put toward installing new software on many individual computers (Marshall,
...here that are relatively safe from outside prying eyes, they are called Mesh, and a mesh can be used as a cheap way to access the regular Internet. Thousands of communities worldwide have been building these build your own networks to keep the government from prying into regular people business. It is said when a person runs this network nobody can shut it down. But if somehow, even though these mesh groups are private, and there broken encryptions, mesh can hook up to regular internet, for instance Via satellite then this person can be sending signals back out to where the NSA can get access to be able to set up taps. This software is likely to gain traction among terrorist here at home; it makes sense for Americans to invest in this because of the way we live today. This parallel, and worldwide Internet is run by the people, for the people.
Server-based networks are higher in cost because money is invested for dedicated servers, network operating software, and network administrators with technical expertise required for network management and configuration. On a small network consisting of fewer than five workstations, client/server architecture is not recommended and is very costly.
Cloud Computing is an up and coming strategy that could create millions of jobs while allowing companies to become more profitable. How does Cloud Computing work? The basis of Cloud Computing is having data, software, platforms or networks stored and executed by an outside source and then streaming the output to your electronic device.(McKendrick, J. 2012 march 3) In this paper I will address the following three topics: the history and basis of Cloud Computing, the three main features of Cloud Computing, and the three network types used of Cloud Computing.
TOR (Roger Dingledine) is a circuit based low-latency anonymous communication service. TOR is now in its second generation and was developed from the Onion routing program. The routing system can run on several operating systems and protect the anonymity of the user. The latest TOR version supports perfect forward secrecy, congestion control, directory servers, integrity checking and configurable exit policies. Tor is essentially a distributed overlay network which works on the application layer of the TCP protocol. It essentially anonymizes all TCP-based applications like web-browsing, SSH, instant messaging. Using TOR can protect against common form of Internet surveillance known as “traffic analysis” (Electronic Frontier Foundation). Knowing the source and destination of your internet traffic allows others to track your behavior and interests. An IP packet has a header and a dat...
limits the network access, in other words, it recognizes the internet accessibility level of the user. In addition, when a virus attacks the computer it directly downloads or deletes the appropriate information. On the other hand, Windows 10 has a different strategy to secure its system by isolating the applications that run on devices in a hardware-based virtual environment. Although, Windows security system has developed dramatically over time, Mac OS X is still less vulnerable to viruses and other malware.
Roberts, Richard M. "Network Secrurity." Networking Fundamentals. 2nd ed. Tinley Park, IL: Goodheart-Willcox, 2005. 599-639. Print.
Berean¡¦s existing network infrastructure is wire line, and uses a T1. Remote users access the network through a dial-up modem pool. Berean¡¦s wire line network model severely limits the accessibility and effectiveness of the Berean network. For example, employees in Berean facilities are unable to access the network easily from meetings, the cafeteria, or anywhere other than their offices. In addition, the effectiveness of remote users is limited by the slow speed of present-day dial-up modem connections.
A reliable environment for teams to exchange information in a secure manner may be a necessity for virtual teams; therefore, security can pose another challenge. Different types of projects may require different levels of security. A virtual private network may be necessary to ensure that information is passed securely to the desired recipients. Authentication and encryption techniques can guarantee secure transmission of electronic...
It supports the use of nested tunnels which means that multiple gateways and the tunnels can be encrypted over again.
There are quite a number of VPN service providers all over the Internet for personal or coompany use today. Each of these providers offer qualities suitable for a person or company’s requirement. Not all of them are the same. However, a few providers distinguish themselves from the rest.
Hence, when LANs are interconnected even though it’s geographically separated and spans between 3 to 30 miles but still within the city, it forms a network type called Metropolitan Area Networks (MANs). MANs covers a larger geographic area covered by LANs but smaller than the geographic area covered by WANs, (Fitzgerald & Dennis, 2012. p295). Example of organization that utilizes this type of networks are large Universities, school districts, and more. Furthermore, when LANs, MANs, and BNs that goes beyond state, national and international boundaries are interconnected it forms a network type called Wide Area Networks (WANs). Internet is the largest WAN, that exist under collective or distributed ownership and management, (Mitchell, n.d.). WANs use technology such as ATM, Frame Relay and X.25 for connectivity over longer distance, (Fitzgerald & Dennis, 2012. p319).
Local Area Networks also called LANs have been a major player in industrialization of computers. In the past 20 or so years the worlds industry has be invaded with new computer technology. It has made such an impact on the way we do business that it has become essential with an ever-growing need for improvement. LANs give an employer the ability to share information between computers with a simple relatively inexpensive system of network cards and software. It also lets the user or users share hardware such as Printers and scanners. The speed of access between the computers is lighting fast because the data has a short distance to cover. In most cases a LAN only occupies one or a group of buildings located next to each other. For larger area need there are several other types of networks such as the Internet.
Corporate Networks in organisations can be complex structures that “requires a great deal of attention” (Clemm 2007). Even small companies can have quite complex networks that are a considerable investment to the business. The notion that corporate network management is a cost to a business rather than a continual beneficial investment is a naive assumption that requires further investigation to the benefits that network management brings. Clemm (Clemm 2007) states in his text that the ultimate goal of network management “is to reduce and minimize total cost of ownership”, improving operational efficiency and lowering cost. Clemm (Clemm 2007) also notes that “Network Management is not just related to cost and quality”, which will be an continual concept presented throughout the report. The report will address key issues with corporate network management and ultimately argue and justify that corporate network management must be seen as a positive benefit to the business and not as a continual expense. The supporting articles will also provide sound evidence that networking is crucial to a business’s processes and production which can be seen from the OpenSSL Heartbleed Security vulnerability fiasco (Nieva 2014) or the QANTAS Amadeus system failure (Heasley 2012).