[HECnet] 'rexec' or 'ssh <command>' over DECNET

[Steve Davidson]

Sampsa,

For VMS specific you can us SYSMAN.   It does NOT require a cluster.   It
does require that you specify the username and password of the remote
however.

$ MCR SYSMAN
SYSMAN> set environment/node=<nodename>/user=<username>
Remote Password: <remote accounts password>
SYSMAN> do @foo.com
SYSMAN>

-Steve

-----Original Message-----
From: owner-hecnet at Update.UU.SE 
[mailto:owner-hecnet at Update.UU.SE] On Behalf Of Sampsa Laine
Sent: Wednesday, August 15, 2012 05:20
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] 'rexec' or 'ssh <command>' over DECNET

Well, the logs are transferred over DECNET to the main host 
that runs SSH (the others are too slow to run SSH).

But they are generated by a DCL script on the node from which 
they are extracted (basically, DCL scripts are run on KUHAVX 
and LABVAX which copy the exported logs to SOLAR5).

So I execute the log generation process (which tells KUHAVX + 
LABVAX to export their logs to SOLAR5) and then fetch them 
from SOLAR5.

Sampsa


On 15 Aug 2012, at 12:15, Johnny Billquist wrote:

On 2012-08-15 11:09, Sampsa Laine wrote:
I am aware of this - I am using this to pull some logs 
from a couple of boxes to another, all VMS.

Eh... Are the logs not accessible over DECnet? Seems like 
you might be going over the river to get the water...?

	Johnny


Sampsa


On 15 Aug 2012, at 12:05, Johnny Billquist wrote:

On 2012-08-15 10:57, Sampsa Laine wrote:
Yes, I was aware of the batch submission, but wanted to 
do it the "ssh way" for a particular reason..

Ok. Note, however, that the solution you came up with now 
is not really generally usable in DECnet, but is rather 
VMS-specific. But on the other hand, more or less any 
solution will be rather specific...

Not sure that a batch submission is that much different 
from your network connection though. Neither is really 
similar to an ssh session, unless I'm missing something.

	Johnny


Sampsa


On 15 Aug 2012, at 11:55, Johnny Billquist wrote:

On 2012-08-15 08:36, Sampsa Laine wrote:
Guys,

I remember there's a clean / elegant way of telling 
another node to run a DCL script for me, but   have totally 
forgotten how to do it.

Basically, I have three nodes, A, B and C.

I've set up proxies for user FOO across all of them.

Now I want node A (as user FOO) to be able to tell 
node B and C to run a script on them, as user FOO.

How do I do this?

I notice that you figured out one way, which is to use 
network communication to a named task.
Another is to submit a batch job on another node. A 
third is (I seem to remember) the ability to just request a 
program to be run on a remote node, but that might some RSX 
specific thing. I can check in manuals if you want to know 
more, as my memory is fuzzy on the specifics.

	Johnny