Greetings,

The update-cluster package provides an efficient way to manage multiple
configuration files from a single master list of machines.  It is used,
for example, by mpich, jmon, dsh and update-cluster-hosts to generate
and maintain config files involving lists of machines.

I'm wondering whether this approach can be used efficiently to configure
rsh and ssh host lists, such as /etc/hosts.equiv and, with a bit more
difficulty, /etc/ssh/ssh_known_hosts2 (this would involve polling all of
the relevant machines for their public keys, or harvesting them from
some user's ~/.ssh/known_hosts2 file).  hosts.equiv is easy to do, but
hard to assign in terms of ownership: does rsh-server own it, or is it
more generic to all rsh server implementations?

After two idle years in the BTS, I'd like to move forward on this, and
would be happy to generate patches as appropriate.  So, any thoughts on
where this should go: update-cluster-hosts, rsh-server, etc?  And
Matthew or Colin, would you accept into ssh an update-cluster script to
auto-generate /etc/ssh/ssh_known_hosts2?

Thanks,

-Adam
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