P0f is a versatile passive OS fingerprinting tool. It can identify the operating system on machines that connect to you (SYN mode), machines you connect to (SYN+ACK mode), machines you cannot connect to (RST+ mode) and machines whose communications you can observe. GUI:Нет Терминал:Есть Windows альтернатива : Программные требования : Аппаратные требования :