A modular outdoor barbeque grill and firepit is constructed of artificial stone-like slab members, which permit a uniform construction method by utilizing only a single block with a universal joint configuration to create an easily assembled, disassembled, re-assembled, and inexpensively manufactured product. The invention uses a Mobile IP proxy to inform the mobile node of whether the mobile node is in an internal network or a remote network. Among these, the computer host further includes a mother board, a CPU, a memory and at least one connecting port. The characters selected are communicated to a production facility for realisation of the customised casing. Embodiments of the invention only need to check the responses from the server, instead of having to check to both the responses from the server and the requests from the client, in order to ascertain the boundary between files and to ascertain whether a response from the server is a HEAD response or a GET response.