Abstract
OVERVIEW OF PREVIOUS STUDIES OF DISTRIBUTED DENIAL OF SERVICE A (DDOS) SOLUTIONS ON NETWORK QUALITY OF SERVICE (QOS)
Daralslam Abdalrhim Hassan Ali*, Khalid Hamid Bilal Abdalla and Zeinab Mahmoud Omer
ABSTRACT
The Internet has become a global communications network tool. Many platforms that support best effort traffic have evolved into a platform that now carries different types of traffic including those that include continuous media with Quality of Service (QoS) requirements. As more services are offered online, we face increased risks to their availability as malicious attacks on these online services continue to increase. Many networks have experienced denial-of-service (DoS) and distributed denial-of- service (DDoS) attacks over recent years which have directly affected the quality of network services, thus violating the Service Level Agreement (SLA) between the customer and the Internet Service Provider (ISP). Hence, DoS or DDoS attacks are major threats to network quality of service. In this paper, some studies that explore techniques and solutions that have been used to thwart DoS and DDoS attacks and evaluate them in terms of their impact on the quality of service on the network for Internet services.
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