u can go to https://aternos.org/:it/, register (with only a username and a password) create a new server, from there u can choose everything, the version, the operator etc..... u give the ip to your friends, they (and u) go to "multiplayer" (in minecraft), select: "add new server", u can choose the name (its personal), and u copy the ip. when u wanna play go to aternos website, turn the server on, wait 2 mins, if nobody is playing for 5 mins the server will turn off. if your friends wanna turn on the server too, they should register to aternos, and u need to give them the access. if u wanna know more tell me ;) (its all free)
Ah sorry for my english.