Security is an important concern in every field of computing. Specifically, security is a process of creating the system that is secure
from all forms of attacks and intrusions. For detecting the intrusion, we have various types of Intrusion Detection System (IDS). The commonly
used types of intrusion detection system are the network based intrusion detection system and host based intrusion detection system. But host
based IDS solely monitors the host whereas network based IDS solely monitors the network. In detecting the intrusion, both the host activity and
network activity must be monitored simultaneously. This paper presents a technique of monitoring both the host and the network at the same
time. The BGIDS is the synthesis of both the behavior based IDS for monitoring the host and graph based IDS for monitoring the network.