Internet of Things (IoT) is an upcoming prominent technology which is quickly growing. Not all IoTdemands of computing resources can be satisfied by cloud, and obstacles are firmer when it comes to mobility and agility. Thus, edge computing as a suitable middleware can fill the gap between cloud and IoT devices. Refer to the latest researches, edge security is still evolving, and forensics is almost untouched. In this work, we attempt to study available technologies and materials then design and implement an edge computing application which addresses the challenge of log collection from different edge devices. The interaction between edge and cloud is in a fashion that cloud entity can perform log collection from heterogeneous edge devices belong to different owners. On the other hand, due to local computing on the logs, the edge devicecan trust cloud party. Results show that thanks to the crucial topological position of the edge devices, the concept of edge computing can easily solve similar cloud challenges.