[Beowulf] Newbie

Skylar Thompson skylar at cs.earlham.edu
Fri Dec 30 17:32:51 EST 2005


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Leif Nixon wrote:

> Skylar Thompson <skylar at cs.earlham.edu> writes:
>
>> For a variety of reasons, I recommend using ssh with passwordless
>> keys, rather than host authentication with rsh.
>
>
> I beg to differ. Passwordless keys are a really bad habit (except
> in very special circumstances like cron jobs - but then the key
> should be restricted in authorized_keys to allow a single command).
>
>
> Setting up hostbased authentication for ssh is much more
> appropriate for a cluster environment.
>
> http://www.snailbook.com/faq/trusted-host-howto.auto.html
>
True. But he did say he was building a private cluster. I've found
passwordless keys to be much easier to manage, particularly for a
beginner.

- --
- -- Skylar Thompson (skylar at cs.earlham.edu)
- -- http://www.cs.earlham.edu/~skylar/
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