dbus: dbus - is a message bus system dbus: dbus: D-Bus is a message bus system, a simple way for applications to talk to dbus: one another. In addition to interprocess communication, D-Bus helps dbus: coordinate process lifecycle; it makes it simple and reliable to code a dbus: "single instance" application or daemon, and to launch applications and dbus: daemons on demand when their services are needed. dbus: dbus: dbus: dbus: