.\" @(#)portmap.8c	2.2 88/08/03 4.0 RPCSRC; from 1.10 88/03/14 SMI.TH PORTMAP 8C "9 September 1987".SH NAMEportmap \- DARPA port to RPC program number mapper.SH SYNOPSIS.B /usr/etc/rpc.portmap.SH DESCRIPTION.IX  "portmap command"  ""  "\fLportmap\fP \(em DARPA to RPC mapper".IX  DARPA "to RPC mapper \(em \fLportmap\fP".B portmapis a server that converts.SM RPCprogram numbers into.SM DARPAprotocol port numbers.It must be running in order to make.SM RPCcalls..LPWhen an.SM RPCserver is started, it will tell.B portmapwhat port number it is listening to, and what.SM RPCprogram numbers it is prepared to serve.When a client wishes to make an.SM RPCcall to a given program number,it will first contact.B portmapon the server machine to determinethe port number where.SM RPCpackets should be sent..LPNormally, standard.SM RPCservers are started by.BR inetd (8C),so.B portmapmust be started before.B inetdis invoked..SH "SEE ALSO".BR inetd.conf (5),.BR rpcinfo (8),.BR inetd (8).SH BUGSIf.B portmapcrashes, all servers must be restarted.