University of Montreal
In today's networked world, computers rarely work in isolation. They collaborate with each other for the purpose of communication, processing, data transfer, storage, etc. When systems work in this collaborative fashion with other systems that are geographically scattered over wide distance it is commonly known as a distributed system. In literature, researchers have used diverse definitions to outline what a distributed system is. This paper presents a comparative study of distributed systems and the security issues associated with those systems. Four commonly used distributed systems were considered for detailed analysis in terms of technologies involved, security issues faced by them and solution proposed to circumvent those issues. Finally the security issues and the solutions were summarized and compared with each other.