Re: [PLUG] ClusterSSH & friends

[Julien Vehent <julien@linuxwall.info>]

On Wed, 10 Aug 2011 01:35:27 -0400, JP Vossen wrote:
> Last night at PLUG N we were talking about running the same command
> on a bunch of servers.  Here is some follow-up for that.
>
> I was thinking of "multixterm", which seems to be part of the
> expect-dev (possibly just expect on some distros), but the references
> on the NIST site seem otherwise dead. [1]
>
> Then there is "Execute commands simultaneously on multiple servers
> Using PSSH/Cluster SSH/Multixterm" [2] and "Parallel SSH execution 
> and
> a single shell to control them all" [3].
>
> There's this non-Interactive one:
> http://www.stearns.org/fanout/    Run non-interactive commands on
> remote machines simultaneously
>
> And of course, CFEngine [4], Puppet [5] and chef [6] and a comparison
> of a bunch of config management tools [7], but these are all more
> heavy duty than the original topic.
>
> I haven't really used any of them, but from my brief survey, PSSH
> sounds the most interesting since it includes (scriptable) pssh, 
> pscp,
> prsync, and pnuke.  http://code.google.com/p/parallel-ssh/
>
> If anyone (Kevin?) dives into these, let us know how it works out.

I have not used pssh yet, it's in the todo list, but I have 
experimented a bit with classic SSH and SUDO to automate user creation 
on multiple servers.

It took me some time to deal with sudo asking for a password, but I 
reached a somewhat acceptable solution. By the way, if someone knows of 
an ssh-agent-like sudo agent, that could transport my sudo session from 
a machine to another, I'd love to hear about it.

Here is the blog post I wrote: 
http://jve.linuxwall.info/blog/index.php?post/2011/07/22/Using-ssh-agent-with-a-relay-to-create-a-user-account-on-multiple-servers


Cheers,
Julien

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