Hi Fabio,
First welcome, I understand English is not your native language, if you want to reach a larger audience with your question at least try using Google translate (or other) and post your question bilingual.
Rob
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Ciao Fabio,
Innanzitutto benvenuto, capisco l'inglese non è la vostra lingua madre, se si vuole raggiungere un pubblico più vasto con la vostra domanda almeno provare a utilizzare Google Translate (o altro) e invia la tua domanda bilingue.
Rob
(result of your post)
Hello, I state that are new to the forum and I congratulate the inventor of arduino: I would check two arduino with ethernet. Let me know if you can program them so that one face and one analog input to analog output: everything should work on LAN but not on PC, in particular I have to use arduino to get a signal (buzzer) to the LAN me home when the alarm sounds in the garage where I have network connection. I am a newcomer to the programming you could give me some advice? Thanks in advance, Fabio