https://github.com/LINXNet/pyexos/blob/d9fd5d336a6499afbfdb3ac1ef11db5bb87977cc/pyEXOS/exos.py#L81 It seems that the method ```is_alive``` works only when using SSH protocol.
pyexos/pyEXOS/exos.py
Line 81 in d9fd5d3
It seems that the method
is_aliveworks only when using SSH protocol.