We have a network that is not documented at all.
There is an IBM Xseries346 server, it is powered on and connected to the network. I don't what OS installed on it or what application is running on it.
I plugged a monitor/keyboard/mouse to the back of it in order to see at least the first window, but I the only thing I can see is : "No Video Input" message on the screen.
Now I would like to know if there is any other trick to use to find out what OS is installed on the server, or any information about the server without restarting the server.
Note that I don't have its IP address or name of the server which is make more difficult.