Ad hoc networking is considered as an inexpensive solution for easy and fast wireless network coverage. However, for real service deployment, security and availability in such networks are still under research even though some experimentation has shown its viability. We propose to offer a secure location of services in an ad hoc environment. We focused on the development of a proxy-based solution to combine a P2P-client/server network overlay in order to provide securely the location information of network services and to set a platform that can include application services. A detailed description of the system architecture and platform is provided describing all the modular components as well as numerical results derived from a simple test bed.