> On Tue, 14 Sep 2004 07:36:38 -0600, Wiggins d Anconia
> <[EMAIL PROTECTED]> wrote:
> > > I have a script that I use to ssh to a list of servers to run a few
> > > commands. I'm trying to find a way su up & run a command - however I'm
> > > in need of some inspiration as to how to pull this off.
> > >
> >
> > Have you considered 'sudo' instead? It would make this task much
> > easier, would eliminate the need to handle passwords and would provide
> > further security by limiting the command that can be run. I would look
> > into using it first, if you can't let us know and we might be able to
> > come up with something.
> >
>
> I don't have complete control over the remote server, so I am limited
> in some ways.
Ironically.... you do, but I take your meaning.
Theres no sudo available, however wouldn't this require
> an interactive response anyway ?.
Not if configured properly. You can tell sudo to accept a command from a
particular user without requiring the password be provided, I do this so
that I can access a root shell with 'sudo bash' on my personal machines.
I've considered a few options from
> stuid to hostkeys & I really want to run this interactively to some
> extent. At the moment I do something like:-
> $for N in 2 - 8; do ssh mta0${N}.fqdn; done & su -
> /usr/local/bin/run_cmd at each server. I have to watch the output, to
> ensure theres no mishaps and don't want to put too much logic into
> this script.
>
Fair enough, just wanted to make sure the option had been explored. In
general you are going to have to handle the data at a lower level,
N::S::P allows you to do so by registering handlers, which will then
invoke functions depending on the data received. I would suggest using
SSH2 for all of this, and then checking out the two example scripts
provided in the distribution, they can be seen online at:
http://search.cpan.org/src/DROLSKY/Net-SSH-Perl-1.25/eg/
They are almost identical for running 'su -' instead of 'passwd', though
you may need one extra level of indirection since you are running a
command in a command. See if the example scripts help, if you are still
missing something, post back....
http://danconia.org
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