| Title | Cloud-Side Shuffling Defenses Against DDoS Attacks on Proxied Multiserver Systems |
| Publication Type | Conference Paper |
| Year of Publication | 2017 |
| Authors | Shan, Yuquan, Kesidis, George, Fleck, Daniel |
| Conference Name | Proceedings of the 2017 on Cloud Computing Security Workshop |
| Publisher | ACM |
| Conference Location | New York, NY, USA |
| ISBN Number | 978-1-4503-5204-8 |
| Keywords | cloud computing, composability, DDoS, Metrics, Networked Control Systems Security, pubcrawl, resilience, Resiliency, security |
| Abstract | We consider a cloud based multiserver system, consisting of a set of replica application servers behind a set of proxy (indirection) servers which interact directly with clients over the Internet. We address cloud-side proactive and reactive defenses to combat DDoS attacks that may target this system. DDoS attacks are endemic with some notable attacks occurring just this past fall. Volumetric attacks may target proxies while "low volume" attacks may target replicas. After reviewing existing and proposed defenses, such as changing proxy IP addresses (a "moving target" technique to combat the reconnaissance phase of the botnet) and fission of overloaded servers, we focus on evaluation of defenses based on shuffling client-to-server assignments that can be both proactive and reactive to a DDoS attack. Our evaluations are based on a binomial distribution model that well agrees with simulations and preliminary experiments on a prototype that is also described. |
| URL | http://doi.acm.org/10.1145/3140649.3140650 |
| DOI | 10.1145/3140649.3140650 |
| Citation Key | shan_cloud-side_2017 |
Cloud-Side Shuffling Defenses Against DDoS Attacks on Proxied Multiserver Systems