Trailing-Edge
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PDP-10 Archives
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BB-PBDEB-BB_1990
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10,7/system/sethos.hlp
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SET HOST Command
Function
The SET HOST command connects you to another host computer on the
same DECnet or ANF-10 network.
Using the SET HOST command, you can remain at one terminal and
switch the terminal connection from one system to a different
system.
For ANF-10 networks, the node you specify must be a network node
where you can run LOGIN or an equivalent program. The SET HOST
command cannot be used to connect to a node that does not have a
command interpreter. Use the NETWORK command with the /MCR
switch to determine the nodes in the network that have command
interpreters. MCR is a name that is used by the NETWORK program
to signify a command interpreter.
Once a terminal has been connected to a particular ANF-10 system
through SET HOST, it remains connected to that system until
another SET HOST command is issued from that terminal. For
example: you log in to a system, issue a SET HOST command to
KS4101 (another host system), do your work, and then log off the
system. Then, when another user uses your terminal, he too will
be running on the KS4101 host system until he issues another SET
HOST command or until the system is reloaded.
On DECnet, when you SET HOST to another system and then log off,
you do not remain connected, as you would with ANF-10, but would
drop back to your original system.
Format
SET HOST node-id
Where: node-id is an identifier of the node to which you want
to connect. It can be a node-name or a node-number.
Characteristics
1. If you SET HOST to ANF-10 nodes, the SET HOST command:
o Does not require LOGIN. However, if you are logged in,
your job is detached when your terminal is connected to
another system.
o Leaves your terminal at monitor level.
o Does not destroy your core image.
2. If you SET HOST to DECnet nodes, the SET HOST command:
o Requires LOGIN
o Places your terminal at user level.
o Destroys your core image.
o Runs CTHNRT.
Restriction
You cannot SET HOST from the TOPS-10 system through DECnet if you
used SET HOST to get to the TOPS-10 system over a DECnet link.
Associated Messages
If the specified node does not have a command interpreter, your
job remains at your current node and the system prints the
following message:
?NODE DOES NOT SUPPORT REMOTE TERMINALS
If the node you specified is not a recognizable node in the
network, your job remains at your current node and the system
prints the following message. This message would occur if the
specified node was not on line, the link between the systems is
down, or you misspelled the node name.
?UNDEFINED NETWORK NODE
If you omit the node-id argument, the system prints the following
error message:
?NOT ENOUGH ARGUMENTS
Examples
1. You attempt to SET HOST to an ANF-10 node, identifying the
node by number:
.SET HOST 26 <RET>
[BC173B KL #1026/1042] hh:mm:ss TTY72 system 1026/1042
Connected to Node KL1026(26) Line # 0
Please LOGIN or ATTACH
.
2. You attempt to SET HOST to an ANF-10 node, identifying the
node by name:
.SET HOST TWINKY<RET>
[Twinky KL702/21A] dd-mmm-yy hh:mm:ss TTY111 System 2197
Connected to Host TWINKY(77) via node KL1026(26) Line # 55
Please LOGIN or ATTACH
.
3. You SET HOST to a DECnet node, log in, and log out again.
Notice that after logging out you are returned automatically
to your original node.
.SET HOST QARRY<RET>
[Connected to VMS system QARRY::, using CTERM protocol]
[Type ^\,<RET> to return]
Username: FRANCINI<RET>
Password: <RET>
This is MicroVMS Version V_._ on node QARRY
Last interactive login on Thursday, DD-MMM-YYYY 18:04
Last non-interactive login on Wednesday, DD-MMM-YYYY 18:29
$
$ LOGOUT<RET>
FRANCINI logged out at DD-MMM-YYYY 15:31:07.28
[Connection closed by remote: User unbind request]
.