The security threats in EPON are analyzed briefly,the link security protocol for link security is investigated,and the current LinkSec models and the function of their components are comprehensively introduced.

A security extension of RTI in Simulation Virtual Private Network(SVPN) environment is put forward against the data link security problems of the traditional distributed simulation system based on High Level Architecture/Run Time Infrastructure(HLA/RTI) technology.

Acquisition and Analysis of Network-link Traffic Base on sFlow;

Network Safety and Privacy Protection;

Design and application of information network safety;

The network security of digital hospital;

Application of firewall to network security;

Research of network security system in electric power system;

The Application of Several Methods of the Management of Internet Security in Enterprises;

Study of Internet Security Based on the Architecture of VPN;

Internet Security Strategies in Digital Libraries;