dbus: dbus: D-Bus supplies both a system daemon (for events such as "new hardware dbus: device added" or "printer queue changed") and a per user login dbus: session daemon (for general IPC needs among user applications). dbus: Also, the message bus is built on top of a general one-to-one message dbus: passing framework, which can be used by any two apps to communicate dbus: directly (without going through the message bus daemon). dbus: dbus: Homepage: https://dbus.freedesktop.org/ dbus: