Fog computing aims to provide fast computing for the Internet of Things. A new protocol was created to manage data location in this environment. Instead of using a distributed Hash Table, a tree-based approach inspired by the DNS protocol was developed. This approach helps servers find data by following a tree structure, reducing network traffic. Tests showed that this new protocol can locate objects in less than 15 milliseconds on average, which is 20% faster than traditional methods using a distributed Hash Table.