Open System Services Shell and Utilities Reference Manual (G06.28+, H06.05+)

portmap(8) OSS Shell and Utilities Reference Manual
COLLECTOR cname
Specifies the Guardian process name of the Event Management
Service (EMS) server process that collects event messages from
the portmapper process.
If this option is omitted, the primary EMS collector ($0) is used.
In addition to the NOWAIT option, other TACL RUN command options (such as CPU and PRI)
are also valid in this command. Refer to the TACL Reference Manual for a description of the RUN
command.
DESCRIPTION
The portmapper process is a Guardian server process that converts host port numbers to Remote
Procedure Call (RPC) program numbers. The portmapper process must be running for su
ccessful
execution of server processes that make remote procedure calls, such as the Network File System
(NFS).
When an RPC server process is started, that process tells the portmapper process what host port
number it is listening to and what RPC program numbers it is prepared to serve. When a client pro-
cess wants to make an RPC call to a given program number, that client first contacts the port-
mapper process on the system that should receive the call to determine the host port number to
which RPC packets should be sent.
EXAMPLES
1. The following example starts the portmapper process as a process pair on the local node.
This example assumes that the user’s PMSEARCHLIST variable does not include the
ZNFS subvolume and that the =ZTCPIPˆPROGRAMˆNAME DEFINE has not been
declared:
VOLUME $SYSTEM.ZNFS
PORTMAP / NAME $ZPM0, CPU 1, NOWAIT / BACKUPCPU 0, TCPIP $ZTC0
FILES
$SYSTEM.ZNFS.PORTMAP
The Guardian filename of the program file for the portmapper program.
$SYSTEM.ZTCPIP.HOSTS
The Guardian filename of the default TCP/IP host definition file for the NonStop
server node. This file must be created by a site administrator.
$SYSTEM.ZTCPIP.RESCONF
The Guardian filename of the default TCP/IP domain name resolver configuration
file for the NonStop server node. This file must be created by a site administrator.
NOTES
The Guardian portmapper program corresponds to the program that is located at /usr/etc/portmap
on some UNIX systems.
On UNIX systems, standard RPC servers are started by the inetd utility, so the portmapper process
must be started before inetd is started. On an HP NonStop server, RPC servers are not started by
inetd. However, the portmapper process must still be started before an RPC server is started.
For conventional TCP/IP, when more than one TCP/IP server is running, the portmapper process
for a specific IP process can be determined as follows:
• By convention, each portmapper process name contains the same number as the
corresponding TCP/IP server process name.
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