Originally Posted by send2rawat
I am working on linux and My server is used by other users also with the help of putty. I just want to know the ip address from where it was rebooted
Hisotry with ip address
If your goal is to audit/track reboots and the user starting them, I suggest looking into sudo. It is not perfect, but if you are trying to track lazy (and not malicious) people - it may be what you are looking for.