[torqueusers] ssh problems

Daniel Widyono widyono at seas.upenn.edu
Wed Oct 19 09:17:24 MDT 2005


> >I'm having problem with ssh passwordless authentication. I have 16
> >machines controlled by torque/maui, and I have setup hostbased
> >authentication amongst them, so no password is required when ssh from

> We use user-based ssh passwordless connections. Users generate key pairs 
> with ssh-keygen, and use empty passphrases. id_rsa.pub is then copied as 
> authorized_keys in .ssh
> 
> This tip works fine with Torque/MAUI.

We do the same, also with Torque/Maui.  We are looking into migrating to
hostbased if possible but haven't had time to try it out yet.  I just know
that simply asking for hostbased authentication in ssh_config yields problems
(which tells me something else needs to be set up).  I also don't want to do
it until I've set up all the security controls (ignoring user-based .shosts
and .rhosts files, etc.).

Tip: we use id_rsa_pbs.pub so as not to interfere with users who have their
own ssh keys set up (for external connections).  ssh config says "for all
node* connections, use id_rsa_pbs key".

Dan W.


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