The Socket Type Field
Although the Linux inetd daemon can accept a number of socket types here, only the types stream or dgram will be discussed for simplicity's sake. For the more curious reader, the inetd (8) man page also lists socket types raw, rdm, and seqpacket types as additional possibilities. The stream type corresponds to the SOCK_STREAM socket type for the socket(2) function call. The value dgram requests a SOCK_DGRAM socket type.