Computer Network : A Means Of Extending Interoperability And Promoting Self Productivity Through Sharing Of Computer Resources Essay

Networking is part of our everyday lives now. Weather is us using our phones, computer, using GPS for directions, watching 3D movies and TV’s or in our work environments. Network Security has become search a big issue since our day to day live started to be more involve with us. These problems involve in all type of shapes and forms where some of these issues are cyber attacks, physical attacks, or abuse of policies. People are really exposed due to the amount of internet activities we have going on in most of our networks. There are two fundamentally different when it comes to networking, the data networks and the synchronous network comprised of switches. With that being said there are also

The popularity of Internet has become ubiquitous and pervasive all over the world. The Internet plays a pivotal role in all walks of human life and has improved the quality of people life and has invaded all sectors like Governmental Organizations, Science and Technology, Business World, Industry and Education. In 1969, the Internet was originated by US Department of Defense (DoD) and Advanced Research Project (ARPANET) using Network Control Program (NCP). Research on packet switching communication methodology resulted in inter-networking of networks in 1981, when the researchers in Great Britain and Norway tried to collaborate with the researchers in US using Internet Protocol (IP). Realizing the importance and advantages of IP, the Internet

Security is the heart of internetworking. The world has moved from an Internet of implicit trust to an Internet of pervasive distrust. In network security, no packet can be trusted; all packets must earn that trust through a network device’s ability to inspect and enforce policy. Clear text (unencrypted data) services represent a great weakness in networks. Clear text services transmit all information or packets, including user names and passwords, in unencrypted format. Services such as file transfer protocol (FTP), email, telnet and basic HTTP authentication all transmit communications in clear text. A hacker with a sniffer could easily capture user names and passwords from the network without anyone’s knowledge and gain administrator access to the system. Clear text services should be avoided; instead secure services that encrypt communications, such as Secure Shell (SSH) and Secure Socket Layer (SSL), should be used. The use of routers and switches will allow for network segmentation and help defend against sniffing

Security is almost certainly the most difficult aspect of a network to perfect. It is important to have the correct procedures and components in place to make certain network security is being accounted for and addressed on any given network. The journal, “Future Generation Computer Systems” elaborates on this necessity for an information system. “Future Generation Computer Systems”, this component of a network is discussed thoroughly. “Essentially securing an Information System (IS), involves identifying unique threats and challenges which need to be addressed by implementing the appropriate countermeasures” (Dimitrios Zissis, Dimitrios Lekkas, 2012). This was achieved through configuring access lists as well as CHAP configuration on the routers connecting to the edge

The Internet is, quite literally, a network of networks. It is comprised of ten thousands of interconnected networks spanning the globe. The computers that form the Internet range from huge mainframes in research establishments to modest PCs in people's homes and offices. Despite the recent hype, the Internet is not a new phenomenon. Its roots lie in a collection of computers that were linked together in the 1970s to form the US Department of Defense's communications systems. Fearing the consequences of nuclear attack, there was no central computer holding vast amounts of data, rather the information was dispersed across thousands of machines. A set of rules, of protocols, known as TCP/IP was

The internet and the development of digital technology (computer-based technology) in particular, have made the most significant impact in the field of information and communication technology in the past decade. The internet is essentially a network of computers across the world which is linked through global

Network Security Issues – major threats and the means to fight them Network security issues are the top priority of all who want to protect their data.

From research on our network the external threats come from the internet majorly. Internet is a universal network that enables sharing of resources internationally. However, resource sharing can be greatly prone to attacks because the internet encompasses a lot of users with different motives. In addition, such attacks come from eavesdropping during transit but WebTechMsn has been able to address this issues by using fiber optic cables which are resistant to tapping of information a long communication channel.

When it comes to networking and the security of networks, there are several different methods of protecting networks. Of these differing methods, some of them sound similar, but provide differing levels of security. In the following paragraphs, I will try to explain the differences between some of the methods used.

In the beginning network protocols that formed part of the Internet infrastructure were designed without security in mind. Without a fundamentally secure infrastructure, network defense becomes more difficult. Furthermore, the Internet is an extremely dynamic environment in terms of both topology and emerging technology. [COH95]

The recent century and its technology spike had allow all nations to become a single city through interconnection, almost all computer are connected through the mean of Internet either via direct wire or through wireless and covering enormous distance across the globe.

Network Security is something not to many users think of when they jump on a computer. Often time’s information can be saved or shared on a network that can become easily compromised. As Technology is becoming THE way to do business in 2015 CEO’s are asking “is our network safe?” This question may not be easily answered and a question that should be asked regularly. Complacency can become the breeding ground for security gaps in a network. Computer networks in the beginning where mainly used for business or organizations and security wasn’t nearly the concern as it is today. Since then ordinary citizens have begun getting on those

Network is an interconnection of many computer devices which is useful for flexible data transmissions and reception. Network security is the process of take care bout information resources in a universal networking (Internet) environment.

Mainly, two people have been influential in the compilation of this report on Computer Network Security. First, I would like to thank my Business and Technological Communications teacher, Mrs. Khurana for getting us started on this report. Second, I would like to thank my computer networking teacher, Mrs. Jyoti for teaching us this subject so enthusiastically. Lastly, I would like to thank, the one and only “google.com” for providing us wonderful searches, without which this report would have been incomplete.

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies. The Internet carries a vast range of information resources and services, such as the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail.