Notes from Jacob K:
rc.conf: system configuration information
rc: command scripts for auto-reboot and daemon startup
inetd: internet "super-server"
/etc/inetd.conf - inetd configuration file
/etc/rpc - translation of service names to RPC program numbers
/etc/services - translation of service names to port numbers
/var/run/inetd.pid - the pid of the currently running inetd