[Info-vax] SSH, was: Re: how to write openvms commands in .sh file through openvms

[Simon Clubley]

On 2013-02-28, David Froble <davef at tsoft-inc.com> wrote:
> Simon Clubley wrote:
>> 
>> The closest you are going to get to running commands remotely on a standard
>> VMS system is to use the ability of ssh (assuming both initiating and target
>> TCP/IP stacks support it) to run a command directly without needing a full
>> interactive session.
>> 
>
> SSH doesn't perform a LOGIN ??
>
> Not saying yes or no, but when I was playing with it a while back, it 
> was my impression that it was performing a certificate based login ...
>
> But, I know nothing ...
>
> No, really!  With respect to SSH, I've got almost no experience ...

ssh can run in one of two basic modes; it can either be used in a
interactive mode (ie: a secure version of telnet) or it can be used to
run a command remotely in a session, including starting up a higher
level protocol.

Standard examples of the latter would be sftp or (on Unix) rsync, but
ssh can also run your own custom command without any interactive
requirements (assuming you are not using passwords for authentication).

ssh can also be used to do TCP connection/port forwarding as well; this
is how X11 forwarding is implemented over ssh.

ssh is a very versatile protocol.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
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