Abstract — We statistically investigated on the unusual big DNS resolution traffic toward the top domain DNS server from a university local campus network in April 11th, 2006. The following results are obtained: (1) In April 11th, the DNS query traffic includes a lot of fully qualified domain names

We statistically investigated on the unusual big DNS resolution traffic toward the top domain DNS server from a university local campus network in April 11th, 2006. The following results are obtained: (1) In April 11th, the DNS query traffic includes a lot of fully qualified domain names (FQDNs

Abstract: We investigated statistically on the IPv6 source IP address-based DNS query traffic a university campus network through January 1st to December 31st, 2005. The results are summarized, as follows: (1) Several security incidents in the IPv6-based DNS query traffic can be observed

Abstract We statistically investigated on unusual DNS query traffic from the several Linux PC servers employing network information system (NIS) as their authentication in the campus network of a university. The following re-sults are obtained: (1) The DNS query traffic includes specific keywords

not scale; each individual query gener-ates a large amount of traffic and, as it grows, the system quickly becomes overwhelmed with the query-induced load. This paper explores, through simulation, various alternatives to gnutella's query algorithm, data replicationmethod, and network topology. We

Temporal distribution of the web query traffic has a signif-icant influence on the performance and scalability of large scale information systems. Most of the existing performance analysis assume a standard Poisson distribution. In this pa-per, we demonstrate that the temporal distribution of web

The sharing of caches among Web proxies is an important technique to reduce Web traffic and alleviate network bottlenecks. Nevertheless it is not widely deployed due to the overhead of existing protocols. In this paper we propose a new protocol called "Summary Cache"; each proxy keeps a

. This hybrid routing approach can be more efficient than traditional routing schemes. However, without proper query control techniques, the ZRP cannot provide the expected reduction in the control traffic.

multiple queries over many sensors, and show how it can be used to limit sensor resource demands while maintaining high query throughput. We evaluate our architecture using traces from a network of traffic sensors deployed on Interstate 80 near Berkeley and present performance results that show how query

We have developed Gigascope, a stream database for network ap-plications including traffic analysis, intrusion detection, router con-figuration analysis, network research, network monitoring, and and performance monitoring and debugging. Gigascope is undergoing installation at many sites within