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Enables the Network Services. Syntax | |
NSCONTROL START[=service[,service]...] |
Parameters | |
- START[=services]
Enables the Network Services (VT,
Reverse VT, NFT,
RFA, RDBA,
RPM, LOOPBACK,
and NSSTAT). The first START
creates the Network Services control process, called DSDAD.
The optional service list (services) allows you to select which
of the services are enabled for local or remote use. Default (if the service list is omitted): enables all services
for both local and remote use. The services which allow users on remote nodes to use resources
on the local node are as follows: - LOOPBACK
Allows remote users to use the loopback diagnostic
server on the local node. - NFT
Allows remote users to transfer files to or from
the local node using the DSCOPY command and intrinsic. - NSSTAT
Allows remote users to use the NSSTATUS
intrinsic to retrieve network services information from the local
node. - RFA
Allows remote users to access files on the local
node, using the RFA and RDBA
services. - RPM
Allows remote users to create and kill processes
on the local node using the Remote Process Management service. - VT
Allows remote users to logon to a session on the
local node. - VTR
Allows remote users to access local terminals using
the Reverse VT service. - VTA
Allows remote users who are running the Virtual
Terminal service over TCP implementations which only support the
ARPA standard stream mode flow control mechanisms to log onto the
local node.
The services which allow users on the local node to use resources
on remote nodes are: - NFTL
Allows local users to transfer files to or from
remote nodes using the DSCOPY command and intrinsics. - NSSTATL
Allows local users to use the NSSTATUS intrinsic
to retrieve network services information from the local and remote
nodes. - RFAL
Allows local users to open and access files and
databases on remote nodes, using the RFA
and RDBA services. - RPML
Allows local users to create and kill processes
on the local and remote nodes using the RPM service. - VTL
Allows local users to log onto remote nodes using
the REMOTE HELLO command. - VTRL
Allows local users to access terminals on remote
nodes using the Reverse VT service.
Discussion | |
If you issue an NSCONTROL START
without specifying a service list, the default is to start all services.
You use the service list if you wish to select which services to
start, and whether local or remote users are allowed to use the
services. To allow remote users to use VT,
VTR, VTA,
NFT, RFA/RDBA,
NSSTAT, LOOPBACK,
and RPM on your local node, you
must START the appropriate remote
services. Additionally, if you wish to allow local users to use
VT, NFT,
RFA/RDBA, RPM,
and NSSTAT to remote nodes, you
must START the appropriate local
services. You must issue the NETCONTROL START command
before the NSCONTROL START command. This is because
the Network Services depend on the network transport subsystem.
Refer to the NETCONTROL START command for more
information. Example 1 | |
Example 1 shows the command sequence necessary to start the
Network Services. Enter the NETCONTROL START
command to initiate the network transport before the NSCONTROL START
command, as shown in the example. Issuing the NSCONTROL START
creates the DSDAD process and starts
all the user services. To successfully initialize a node, the commands must be issued
in the order specified. At least one of the required NETCONTROL START
commands must be issued first, before the NSCONTROL START
command. :NETCONTROL START;NET=LAN1
:NSCONTROL START |
Example 2 | |
For security reasons, the node manager for this node has decided
to restrict the Network Services to outgoing only. The command shown
in example 2 enables users on the local node to use resources on
remote nodes. The reverse is not true. Users on remote nodes are
not allowed to logon or use any of the services on the local node.
The status display shows all the local services enabled and all
the remote services disabled. :NSCONTROL START=VTL,VTRL,NFTL,RFAL,RPML
VTL NETWORK SERVICE STARTED.
VTRL NETWORK SERVICE STARTED.
NFTL NETWORK SERVICE STARTED.
RFAL NETWORK SERVICE STARTED.
RPML NETWORK SERVICE STARTED.
:NSCONTROL STATUS=SERVICES
SERVICE TYPE STARTED SERVER DESCRIPTION
VTA REMOTE NO VTSERVER INCOMING STREAM MODE VIRTUAL TERMINAL
NSSTATL LOCAL NO NSSTATUS OUTGOING NSSTATUS SERVICE
NSSTAT REMOTE NO NSSTATUS INCOMING NSSTATUS SERVICE
LOOPBACK REMOTE NO LOOPBACK INCOMING LOOPBACK SERVICE
RPML LOCAL YES DSSERVER OUTGOING REMOTE PROCESS MANAGEMENT
RPM REMOTE NO DSSERVER INCOMING REMOTE PROCESS MANAGEMENT
PTOPL LOCAL NO DSSERVER OUTGOING PROGRAM-TO-PROGRAM COMMUNICATION
PTOP REMOTE NO DSSERVER INCOMING PROGRAM-TO-PROGRAM COMMUNICATION
RFAL LOCAL YES DSSERVER OUTGOING REMOTE FILE ACCESS
RFA REMOTE NO RASERVER INCOMING REMOTE FILE ACCESS
NFTL LOCAL YES NFT OUTGOING NETWORK FILE TRANSFER
NFT REMOTE NO NFT INCOMING NETWORK FILE TRANSFER
VTRL LOCAL YES VTSERVER OUTGOING REVERSE VIRTUAL TERMINAL
VTR REMOTE NO VTSERVER INCOMING REVERSE VIRTUAL TERMINAL
VTL LOCAL YES VTSERVER OUTGOING VIRTUAL TERMINAL
VT REMOTE NO VTSERVER INCOMING VIRTUAL TERMINAL |
Example 3 | |
The network transport must be initialized before you can issue
the NSCONTROL START command. If not, the error
messages shown in example 3 are displayed. :NSCONTROL START
TRANSPORT NOT INITIALIZED (DSERR 644)
INVALID CONTROL OPTION (CIERR 5062) |
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