Use a serial connection to communicate with the server, or just do it over the network. There is absolutely no way you can use your laptop display/keyboard/input device on another machine.
A keyboard-video-mouse (KVM) switch saves space in a server room by allowing you to connect multiple servers to a single monitor, keyboard and mouse. HP KVM switches are available in tabletop or ...
Our simple network rack is an easy project that can really clean up a home network installation. Just a few square feet of floor space now keeps our cable modem firewall, Ethernet switch, server, ...