Virtual Private Network IS 311 Dr. Gray Tuesday 7pm November 19, 2002 By Germaine Bacon Lizzi Beduya Jun Mitsuoka Betty Huang Juliet Polintan Table of Contents Introduction .. 1 - 2 VPN Topology... 2 - 3 Types of VPNs... 3 - 5 Components of VPNs. 5 - 7 Productivity and Cost Benefit.... 7 - 9 Quality of Service.. 9 The Future of VPN.... 9 - 11 Conclusion. 11 Bibliography...12 - 13 Questions14 Introduction Virtual. Virtual means not real or in a different state of being. In a VPN, private communication between two or more devices is achieved through a public network the Internet. Therefore, the communication is virtually but not physically there. Private. Private means to keep something a secret from the general public. Although those two devices are communicating with each other in a public environment, there is no third party who can interrupt this communication or receive any data that is exchanged between them. Network. A network consists of two or more devices that can freely and electronically communicate with each other via cables and wire. A VPN is a network. It can transmit information over long distances effectively and efficiently. The term VPN has been associated in the past with such remote connectivity services as the (PSTN), Public Switched Telephone Network but VPN networks have finally started to be linked with IP-based data networking. Before IP based networking corporations had expended considerable amounts of time and resources, to set up complex private networks, now commonly called Intranets. These networks were installed using costly leased line services, Frame Relay, and ATM to incorporate remote users. For the smaller sites and mobile workers on the remote end, companies supplemented their networks with remote access servers or ISDN. Small to medium-sized companies, who could not afford dedicated leased lines, used low-speed switched services. As the Internet became more and more accessible and bandwidth capacities grew, companies began to put their Intranets onto the web and create what are now known as Extranets to link internal and external users. However, as cost-effective and quick-to-deploy as the Internet is, there is one fundamental problem security. Todays VPN solutions overcome the security factor using special tunneling protocols and complex encryption procedures, data integrity and privacy is achieved, and the new connection produces what seems to be a dedicated point-to point connection. And, because these operations occur over a public network, VPNs can cost significantly less to implement than privately owned or leased services. Although early VPNs required extensive expertise to implement, technology has matured to a level where deployment can be a simple and affordable solution for businesses of all sizes. Virtual Simply put, a VPN, Virtual Private Network, is defined as a network that uses public network paths but maintains the security and protection of private networks. For example, Delta Company has two locations, one in Los Angeles, CA (A) and Las Vegas, Nevada (B). In order for both locations to communicate efficiently, Delta Company has the choice to set up private lines between the two locations. Although private lines would restrict public access and extend the use of their bandwidth, it will cost Delta Company a great deal of money since they would have to purchase the communication lines per mile. The more viable option is to implement a VPN. Delta Company can hook their communication lines with a local ISP in both cities. The ISP would act as a middleman, connecting the two locations. This would create an affordable small area network for Delta Company. VPNs were are broken into 4 categories- Trusted VPN A customer trusted the leased circuits of a service provider and used it to communicate without interruption. Although it is trusted it is not secured. Secure VPN With security becoming more of an issue for users, encryption and decryption was used on both ends to…
I’m referring to the talk about predators and staying safe on social networking sites such as face book.
Kids use the internet for hours upon hours each week. They can navigate their way very easily around the web, using it to complete assignments, play games and engage in social networking, but just because kids know a lot about using the internet, does not mean that they know a lot about internet safety.
Social networking, by definition, seems harmless, but there are a lot of hidden dangers…
a) True b) False
4. An ASR system follows three steps including feature classification, pattern
processing, and language analysis.
a) True b) False
5. Virtual reality is a three-dimensional computer simulation in which you
actively and physically participate.
a) True b) False
6. A headset is an input device that captures and records the shape and
1. Disaster Recovery as a Service (DRaaS) is a predetermined set of processes offered by a vendor to help an organisation implement a disaster recovery plan. DRaaS provides disaster recovery services in the Cloud. It can be provided as either a Private Cloud or a Public Cloud solution
DRaaS offers at least two* substantial advantages over in-house DRPs. If an enterprise lacks disaster recovery expertise among its personnel, a third-party team of DRP specialists can provision, configure, and test…
Assessment (Risk assessment)
Social networking sites such as Facebook and MySpace have exploded in recent years and young surfers in particular have become ardent fans of this dynamic and high-tech way to connect with the wider world around them, communicating with friends and hooking up with like-minded people. But as with everything in the virtual world, parents do need to understand how their children are interacting on social networking sites, and be sure their children know what to…
management over your remote systems
• Improved security to help ensure the confidentiality, integrity and availability of your data
• Seamless, secure internet connection by mobile workers to your corporate network without the need for a virtual private network (VPN)
• Faster file downloads for branch office users
• Dedicated features, such as Direct Access and BranchCach, aimed specifically at maximizing the synergy between Windows Server 2008 clients to enable powerful remote access capabilities…
Are social networking sites doing us any good? Or are they just a sophisticated way of stalking people?
he spread of social networking sites has changed every person’s ways of socializing and communicating with friends and acquaintances. Since the birth of social networking sites, it has given enormous benefits to the sphere, as it allows to keep in touch with anyone and to collaboration with others even in different geographic areas. By having the full advantages of social networking sites, a big…
allowing wider adoption across both enterprise and small to medium sized business environments.
Campus area network
A campus area network (CAN) is a computer network made up of an interconnection of LANs within a limited geographical area. The networking equipment (switches, routers) and transmission media (optical fiber, copper plant, Cat5 cabling etc.) are almost entirely owned (by the campus tenant / owner: an enterprise, university, government etc.).
In the case of a university campus-based…
Instagram, Reddit, and MySpace, there are so many social networking sites, that it is hard to pick one to spend your time on. Many people have an account for every social networking site there is, or at least the popular ones. Many sites have become over advertised or more annoying to use. A newer site that is not so over the top is Pinterest. Pinterest is a unique social networking site that allows you to be unique.
Pinterest is a virtual bulletin board. Pinterest is a website that allows you to…
the computer science studies are filling into three major disciplines which can be networking , information security and programming.
In 1960s , there was a need to have an efficient way to exchange the information between the governmental agencies ; therefore , researchers had started to work on a way to connect computers together to provide an efficient and quick way of communication. Since then , the networking has dominated on the research area of computer science. This had led to revolutionary…
Social networking sites begin with a group of founders sending out messages to friends to join the network. In turn the friends send out messages to their friends, and the network grows. When members join the network, they create a profile. Depending on the site, users can customize their profile to reflect their interests. They also begin to have contact with friends, acquaintances, and strangers.
No doubt Facebook and Twitter are most powerful social media and social networking site. They…