The rpc file is an ASCII file that contains the following information:
Each rpc name is separated from the next by a new line. Items are separated by any number of blanks or tab characters or both. A number sign (#) indicates the beginning of a comment; characters up to the end of the line are not interpreted by routines that search the file.
The rpc database can be distributed in a network by a naming service, such as Network Information Service (NIS) or BIND. See the Network Administration for setup information.