daemon
Sign in to saveAlso known as Daemon (computer software), demon, computer daemon, computer demon, background service, service, daemon process, daemon software
computer program that runs persistently as a background process to provide a service
~8 min read
Article
Components of some Linux desktop environments that are daemons include D-Bus, NetworkManager (here called unetwork), PulseAudio (usound), and Avahi.
In computing, a daemon is a program that runs as a background process, rather than being under the direct control of an interactive user. Customary convention is to name a daemon process with the letter d as a suffix to indicate that it's a daemon. For example, syslogd is a daemon that implements system logging facility, and sshd is a daemon that serves incoming SSH connections.