Where hopefully it is obvious that DIR represents the Director, FD the File
daemon or client, and SD the Storage daemon. The numbers that follow those
-names are the standard ports used by Bacula, and the -\gt{} represents the
+names are the standard ports used by Bacula, and the \verb:->: represents the
left side making a connection to the right side (i.e. the right side is the
"server" or is listening on the specified port), and the left side is the
"client" that initiates the conversation.