downtimed

System downtime monitoring and reporting tool

downtimed is a program that monitors operating system downtime, uptime, shutdowns and crashes and keeps records of those events. downtimed(8) is a daemon process which is intended to be started automatically from system boot scripts every time when the operating system of a server starts. First the daemon logs its findings about the previous downtime to a specified logging destination as well as in a database file which can be displayed with downtimes(1). After that the daemon just keeps waiting in the background and periodically updates a time stamp file on the disk. downtimes(1) is a command-line tool which can be used to inspect previous downtime records.