The Research of the Signature Server s Encryption Block on the E-Government Security Platform;

A notion of grade field is presented and introduced into contract net to eliminate the disadvantages of the contract net model so as to solve the problems due to the collaboration among different service agents, thus minimizing the region to search collaborative service agents.

Multifold virtual simulation radios, distributed service agent and other software were developed.

The cooperation communication can develop their function effectively between the multi service agents.

Research on logistic application service broker based on multi-mobile agents;

Design and implementation on service broker based on UDDI;

Compared to previous model,the service broker is extended.

Implementation of Proxy Service of Web Application Server with Java;

This paper introduces the basic theory of the typical network firewall (the packet filter firewall and the proxy firewall) and the trait of each other.

This paper analyze the basic concept,implementation and design about internet firewall, focusing on the technology of packet filtering and proxy, at the same time, pointing out their advantages and disadvantages.

On the basis of the studies concerning the technology of firewalls, such as the study of package filter, agent service, status examination, the author, in the present thesis, conducts some researches concerning the basic Linux firewall realization technology and its tools, .