In multitasking computer operating systems, a daemon (/ˈdiːmən/ or /ˈdeɪmən/) is a computer program that runs as a background process, rather than being under the direct control of an interactive user. Traditionally daemon names end with the letter d. For example, syslogd is the daemon that implements the system logging facility and sshd is a daemon that services incoming SSH connections.In a Unix environment, the parent process of a daemon is often, but not always, the init process.