| Publisher | Association for Computing Machinery | ||
|---|---|---|---|
| Format | 1.0MB PDF | Date added | 11 May 2002 |
| Topics | Denial of Service, Network Security, Security Management | ||
| Downloads | 8 | ||
The paper studies two types of events that often overload Web sites to a point when their services are degraded or disrupted entirely - Flash Events (FEs) and Denial of Service attacks (DoS). The former are created by legitimate requests and the latter contain malicious requests whose goal is to subvert the normal operation of the site. They study the properties of both types of events with a special attention to characteristics that distinguish the two. Identifying these characteristics allows a formulation of a strategy for Web sites to quickly discard malicious requests. They also show that some Content Distribution Networks (CDNs) may not provide the desired level of protection to Web sites against ash events.
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