portmap(1M)                    DG/UX R4.11MU04                   portmap(1M)


NAME
       portmap - DARPA port to RPC program number mapper

SYNOPSIS
       /usr/etc/rpc.portmap [ -f ]

DESCRIPTION
       portmap is a server that converts RPC program numbers into DARPA
       protocol port numbers.  It must be running in order to make RPC
       calls.

       When an RPC server is started, it will tell portmap what port number
       it is listening to, and what RPC program numbers it is prepared to
       serve.  When a client wishes to make an RPC call to a given program
       number, it will first contact portmap on the server machine to
       determine the port number where RPC packets should be sent.

       Due to a security risk, by default, portmap will not forward requests
       of the following program ids and combinations of certain processes:

       PMAPPROG ((ulong) 100000)

       NFSPROG ((ulong) 100003)

       YPXPROG ((ulong) 100069)

       MOUNTPROG ((ulong) 100005) and MOUNTPROCMNT ((ulong) 1)

       YPPROG ((ulong) 100004) and YPPROCDOMAINNONACK ((ulong) 2)

       However, to allow portmap to forward these types of requests, invoke
       portmap with the -f option.

       Normally, standard RPC servers are started by inetd(1M), so portmap
       must be started before inetd is invoked.

OPTIONS
       -f     Override default behavior and allow portmap to forward all
              types of requests.

SEE ALSO
       inetd(1M), rpcinfo(1M), inetd.conf(4M).

BUGS
       If portmap crashes, all servers must be restarted.


Licensed material--property of copyright holder(s)