Abstract: In today’s world there is huge amount use of workstation particularly for web submission. Most of the people do their transaction through web use. So there are chances of personal figures gets hacked then need to be provide more refuge for both web server and database server. For that purpose double guard system is used. The double guard system is used to indentify & prevent attacks using Intrusion detection system. Double Guard prevents attacks and prevents user account from intruder from hacking his/her account. By using IDS, system can supply security for both database server and web server using map of demand and query. An IDS system that model the network actions of user sessions across together the front-end web server and the back- end database.

Keywords: Session, Session Id, Query String, Ids.