Performance Evaluation of Web Server's Request Queue against AL-DDoS Attacks in NS-2

2021 ◽  
pp. 282-301
Author(s):  
Manish Kumar ◽  
Abhinav Bhandari
Keyword(s):  
Web Services ◽  
Research Work ◽  
Web Server ◽  
Ddos Attacks ◽  
Scheduling Policies ◽  
Scheduling Policy ◽  
Flooding Attack ◽  
Queue Scheduling ◽  
Request Queue ◽  
Ns2 Simulator

As the world is getting increasingly dependent on the Internet, the availability of web services has been a key concern for various organizations. Application Layer DDoS (AL-DDoS) attacks may hamper the availability of web services to the legitimate users by flooding the request queue of the web server. Hence, it is pertinent to focus fundamentally on studying the queue scheduling policies of web server against the HTTP request flooding attack which has been the base of this research work. In this paper, the various types of AL-DDoS attacks launched by exploiting the HTTP protocol have been reviewed. The key aim is to compare the requests queue scheduling policies of web server against HTTP request flooding attack using NS2 simulator. Various simulation scenarios have been presented for comparison, and it has been established that queue scheduling policy can be a significant role player in tolerating the AL-DDoS attacks.

Performance Evaluation of Web Server's Request Queue against AL-DDoS Attacks in NS-2

2017 ◽  
Vol 11 (4) ◽  
pp. 29-46
Author(s):  
Manish Kumar ◽  
Abhinav Bhandari
Keyword(s):  
Web Services ◽  
Research Work ◽  
Web Server ◽  
Ddos Attacks ◽  
Application Layer ◽  
Scheduling Policies ◽  
Scheduling Policy ◽  
Flooding Attack ◽  
Queue Scheduling ◽  
Request Queue

As the world is getting increasingly dependent on the Internet, the availability of web services has been a key concern for various organizations. Application Layer DDoS (AL-DDoS) attacks may hamper the availability of web services to the legitimate users by flooding the request queue of the web server. Hence, it is pertinent to focus fundamentally on studying the queue scheduling policies of web server against the HTTP request flooding attack which has been the base of this research work. In this paper, the various types of AL-DDoS attacks launched by exploiting the HTTP protocol have been reviewed. The key aim is to compare the requests queue scheduling policies of web server against HTTP request flooding attack using NS2 simulator. Various simulation scenarios have been presented for comparison, and it has been established that queue scheduling policy can be a significant role player in tolerating the AL-DDoS attacks.

Application Service Provision

2005 ◽  
pp. 99-133
Author(s):  
Matthew W. Guah ◽  
Wendy L. Currie
Keyword(s):  
Web Services ◽  
Business Model ◽  
Service Provision ◽  
Business Processes ◽  
Research Work ◽  
The Internet ◽  
Internet Age ◽  
Application Service ◽  
Implementation Program ◽  
The Impact

The Application Service Provision (ASP) business model offers a pragmatic adoption path for inter-organizations in the Internet Age. Given this pragmatic adoption path, academics are beginning to question the following: Where are enterprises adopting ASP technology first? Why are they choosing these areas? Where will they apply the evolving Web services technology next? This chapter’s primary purposes are to point out a number of issues that concern management of inter-organizations of the Internet Age and to explore the impact of ASP on such organizations. It will examine the strategies that will enable inter-organizations to better manage ASP resources for competitive advantage. While the phenomenon of ASP is still in an embryonic stage, we draw from seminal works of IS pioneers like Markus, Porter, Checkland, Maslow, and others. Their intellectual contributions, plus findings from research work at Brunel University, provide a framework for discussion. By shedding light on patterns of ASP’s trajectory, drivers, benefits, and risks, the chapter will help managers and academics to reflect on determining where ASP—and associated technologies—might be deployed and define a broad implementation program to exploit the potential of the ASP business model. The chapter seeks to find if Web services architectures are distinctively able to enhance the flexible coordination of business processes, which span various enterprises and rely on inter-organization information systems in the Internet Age.

Privacy Aware Access Control

2017 ◽  
Vol 10 (2) ◽  
pp. 17-30
Author(s):  
Rekha Bhatia ◽  
Manpreet Singh Gujral
Keyword(s):  
Web Services ◽  
Access Control ◽  
Research Work ◽  
Data Access ◽  
The Internet ◽  
Sensitive Information ◽  
Human Right ◽  
Ready Availability ◽  
Control Technologies ◽  
Technical Solutions

Due to the ever increasing number of web services available through the Internet, the privacy as a fundamental human right is endangered. Informed consent and collection of information are two important aspects while interacting on the Internet through web services. The ease of data access and the ready availability of it through Internet, made it easier for interested parties to intrude into the individual's privacy in unprecedented ways. The regulatory and technical solutions adopted to curb this have achieved only a limited success. The main culprits in this regard are the incompatibilities in the regulatory measures and standards. This research work focuses on privacy preserving access control for sharing sensitive information in the arena of web services, provides some recent outlooks towards the critical need of privacy aware access control technologies and a comprehensive review of the existing work in this arena. Besides, a novel framework for privacy aware access to web services is also provided.

scholarly journals Space profiling for parallel functional programs

2010 ◽  
Vol 20 (5-6) ◽  
pp. 417-461 ◽  
Author(s):  
DANIEL SPOONHOWER ◽  
GUY E. BLELLOCH ◽  
ROBERT HARPER ◽  
PHILLIP B. GIBBONS
Keyword(s):  
Resource Use ◽  
Source Code ◽  
Semantic Space ◽  
Runtime System ◽  
Scheduling Policies ◽  
Use Patterns ◽  
Scheduling Policy ◽  
Standard Ml ◽  
Cost Semantics ◽  
The Impact

AbstractWe present a semantic space profiler for parallel functional programs. Building on previous work in sequential profiling, our tools help programmers to relate runtime resource use back to program source code. Unlike many profiling tools, our profiler is based on a cost semantics. This provides a means to reason about performance without requiring a detailed understanding of the compiler or runtime system. It also provides a specification for language implementers. This is critical in that it enables us to separate cleanly the performance of the application from that of the language implementation. Some aspects of the implementation can have significant effects on performance. Our cost semantics enables programmers to understand the impact of different scheduling policies while hiding many of the details of their implementations. We show applications where the choice of scheduling policy has asymptotic effects on space use. We explain these use patterns through a demonstration of our tools. We also validate our methodology by observing similar performance in our implementation of a parallel extension of Standard ML.

scholarly journals Event Based Approach for Web Services Composition

2014 ◽  
pp. 52-58
Author(s):  
A. Vani Vathsala ◽  
Hrushikesha Mohanty
Keyword(s):  
Web Services ◽  
Service Oriented Architecture ◽  
Research Work ◽  
Ongoing Research ◽  
Loosely Coupled ◽  
Fine Grained ◽  
Business Applications ◽  
Event Driven ◽  
Service Oriented ◽  
Event Based

The success of the Internet and the ongoing globalization led to a demand for new solutions to meet the requirements for ITsystems. The paradigm of service-oriented and event-driven architecture with fine grained and loosely coupled services tries to cope with those needs. Service Oriented Architecture (SOA) and Event Driven Architecture (EDA) are two acknowledged architectures for the development of business applications and information systems, which have evolved separately over the years. Today both architectures are acknowledged, but their synergy is not. There are numerous benefits of having an architecture that supports coexistence between operations and events, and composition of services based on operation invocation and event triggering. As part of our ongoing research work, we have tried to analyze in this paper, the basic design of Event based systems, issues that have to be addressed when event based approach is used for composing and coordinating web services. Then we have specified the techniques available that handle these issues, and gave a comparative study on these techniques. Finally we have attempted to sort out the unhandled/ partially handled issues that could be addressed as part of our research.

Privacy Aware Access Control

2019 ◽  
pp. 2028-2043
Author(s):  
Rekha Bhatia ◽  
Manpreet Singh Gujral
Keyword(s):  
Web Services ◽  
Access Control ◽  
Research Work ◽  
Data Access ◽  
The Internet ◽  
Sensitive Information ◽  
Human Right ◽  
Ready Availability ◽  
Control Technologies ◽  
Technical Solutions

Due to the ever increasing number of web services available through the Internet, the privacy as a fundamental human right is endangered. Informed consent and collection of information are two important aspects while interacting on the Internet through web services. The ease of data access and the ready availability of it through Internet, made it easier for interested parties to intrude into the individual's privacy in unprecedented ways. The regulatory and technical solutions adopted to curb this have achieved only a limited success. The main culprits in this regard are the incompatibilities in the regulatory measures and standards. This research work focuses on privacy preserving access control for sharing sensitive information in the arena of web services, provides some recent outlooks towards the critical need of privacy aware access control technologies and a comprehensive review of the existing work in this arena. Besides, a novel framework for privacy aware access to web services is also provided.

Sign in / Sign up

Export Citation Format

Share Document