[PLUG] ClusterSSH & friends

[JP Vossen <jp@jpsdomain.org>]

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.

______________________________________________
[1] Multiterm
* http://www.linux.com/articles/52131    Execute commands simultaneously 
on multiple servers (excerpted from Linux Server Hacks, Volume Two)
* http://www.oreilly.com/catalog/morelnxsvrhks/    #29 Execute commands 
simultaneously on multiple servers page 144
* DEAD: http://expect.nist.gov/example/multixterm.man.html    multixterm 
- drive multiple xterms separately or together

[2] 
http://www.ubuntugeek.com/execute-commands-simultaneously-on-multiple-servers-using-psshcluster-sshmultixterm.html

[3] http://www.linux.com/archive/feature/151340

[4] http://www.cfengine.org/ and http://en.wikipedia.org/wiki/Cfengine

[5] http://www.puppetlabs.com/ and 
http://en.wikipedia.org/wiki/Puppet_%28software%29

[6] http://www.opscode.com/chef/ and 
http://en.wikipedia.org/wiki/Chef_%28software%29

[7] 
http://en.wikipedia.org/wiki/Comparison_of_open_source_configuration_management_software


Later,
JP
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