SECURITY IN NETWORKS

Security in Networks

Security in Networks

Introduction

Adequate mechanisms for the information of an organization or company is safe; require the user to apply protection for normal use. This is achieved with the guarantees of confidentiality ensures that information is accessible, protecting the integrity and completeness of the information and processing methods. It also ensures the availability guarantees authorized users' access to information and resources.

HANCO (Al Tala'a International Transportation Co Limited) Established in 1976 is among Saudi Arabia's top-three car rental, leasing and fleet management companies.

HANCO is a rapidly growing organization headquartered in Jeddah, Saudi Arabia, with branch offices in Riyadh, Khobar, Jubail and Yanbu. Initially, the company's network followed a distributor-based architecture, which has since evolved into a more centralized architecture. The company's rapid growth had resulted in increasing spam threats to the network, which congested bandwidth and led to lower levels of productivity.

With a large fleet to manage and an increasing number of branch offices and workshops, HANCO was looking for a comprehensive and cost-effective solution. The company tested solutions from Cisco® and Symantec®, but was not satisfied with the results. The challenge they faced was an unreliable, spam-ridden network. The proposed solution for this problem could be Wireless mesh Network Security, and SSL and TLS.

The computer network security is a key issue to promote the development of trade in all areas. One word "security" covers very different aspects, technical, organizational and legal. Latitude users against security problems are often irrational, which does not help to simplify the discussion. The safety of paying by credit card over the Internet is part of controversial topics.

Critical Analysis and discussion

One of the most significant inquiries network managers face is how to get higher bandwidth without disturbing the living network. Gigabit Ethernet pursues the identical pattern and function as its 10 Mbps and 100 Mbps Ethernet antecedents, permitting a clear migration to higher-speed networking. All three Ethernet races use the identical IEEE 802.3 border format, full-duplex procedure and flow command methods. In half-duplex mode, Gigabit Ethernet uses the identical elemental CSMA/CD get access to the procedure to determination contention for the distributed media. Simply asserted, Gigabit Ethernet is Ethernet, only faster (Zeng , 2003, 154). Because of the superior scalability of Ethernet expertise, it is straightforward to attach living smaller pace Ethernet apparatus to Gigabit Ethernet apparatus utilizing LAN swaps or routers to acclimatize one personal line pace to the other. This evolutionary improvement route permits Gigabit Ethernet to be seamlessly incorporated into living Ethernet and Fast Ethernet networks.

Wireless Network Security

Characteristics of architecture and structure of WMN as well as ad hoc and other mobile, wireless communications networks are susceptible to security problems. Distributed network architecture sequence and vulnerability of wireless shared media access channel and exchange customer information display area WMN to these security attacks. WMN is the dynamic, multihop network these frequent changes in topology requires authentication security updates notification. Security attacks can occur in layers of routing; client updates nodes and poisoning of message ...