A telephone book allows you to look up an individual person by name and get their telephone number, their unique identifier on the telephone system's network.
DNS allows you to look up individual server by name and get its IP address, its unique identifier on the Internet.
You may have your personal "telephone book" in /etc/hosts.
Just edit this file and add the names of your computers IPs in the way
192.168.1.12 webserver.home webserver
Save the file, and then in your browser you just type http://webserver or http://webserver.home and get access to server.
You have to edit all the hosts file of every computer so everyone uses the same names for every computer.
Si necessiteu resoldre algun dubte, poseu-vos en contacte a través d'aquest enllaç.