Re: CMU & SSH (433 Views)
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Occasional Visitor
mrogozinski
Posts: 2
Registered: ‎06-27-2012
Message 1 of 3 (451 Views)

CMU & SSH

[ Edited ]

Will all CMU functionality be available if the root user has a non-empty SSH passphrase?  For example, after I created a set of keys with a passphrase, multiple CMU options no longer work because the passphrase needs to be entered.  I tried running an ssh-agent to handle the authentication, but I do not know if CMU can communicate with the agent through Java.

 

Thanks.

 

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Advisor
Chris Holmes (CMU)
Posts: 17
Registered: ‎07-13-2010
Message 2 of 3 (433 Views)

Re: CMU & SSH

Hello,

 

No, CMU will not work if the root account requires a password or passphrase when using ssh between nodes. Several components in CMU expect to be able to ssh without a password, such as monitoring and pdsh support.

 

Can you tell us what problem you are trying to solve by adding a passphrase to ssh on a CMU cluster?

 

Thanks,

--Chris

 

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Occasional Visitor
mrogozinski
Posts: 2
Registered: ‎06-27-2012
Message 3 of 3 (420 Views)

Re: CMU & SSH

Chris,

 

There was no problem that I was trying to solve by creating a set of keys with a non-empty passphrase.  I was trying to "harden" the system from a security perspective, although I do realize that there are other and better ways to protect super-user access.  Thanks for the response, and I will restore the enmpty keys!

 

Thanks,

 

. michael

 

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