A network computer system for providing security that includes a monitoring function for the network computer system utilizing compartments that can be logical or separate physical hardware, at least one outside server for an untrusted computer network, e. The lens barrel receives the lens therein and includes a flange protruding over the lens barrel. The packet router determines when a communication failure occurs, and the packet router is configured to send a first message packet to the network hub if a first type of communication failure occurs and a second message packet to the at least one sensor if a second type of communication failure occurs. The system comprises a plurality of modules configured to accomplish these tasks.