[Beowulf] automated ssh & rsh

Joe Landman landman at scalableinformatics.com
Wed Jun 23 10:59:22 PDT 2004

Hi Sandeep:

On Wed, 2004-06-23 at 12:52, sandeep krishnan wrote:
> Hi,
> I am having a problem with the cluster  I set up using
> Linux Redhat 8.0 for Fluent 6.1.
> I am sharing the /home of the master on all the slave
> nodes because of which I am not able to set up the
> automated ssh and rsh (ie login without password)
> between the nodes. 

Ok, so you have /home mounted on all the compute nodes.  And you want to
be able to log in to any compute node from any other compute node or
head node.  Is this correct?

If so, then all machines share /home/username/.ssh/

You would have to run ssh-keygen

	ssh-keygen -t dsa

Then in the ~/.ssh directory

	cat id_dsa.pb >> authorized_keys

You might need to change some things in /etc/ssh/sshd_config to enable
this to work.

Alternatively, you could enable .shost/.rhost processing in the
/etc/ssh/sshd_config, and create the appropriate files.  This is quite a
bit less secure, though sharing a home directory is also not terribly
secure in some circumstances.   

> Can somebody help me with this
> Thanks
> Sandeep Krishnan
> Graduate Student 
> Oklahoma State University.
> =====
> Sandeep Krishnan 
> Graduate Student 
> Oklahoma State University
> __________________________________
> Do you Yahoo!?
> Take Yahoo! Mail with you! Get it on your mobile phone.
> http://mobile.yahoo.com/maildemo
> _______________________________________________
> Beowulf mailing list, Beowulf at beowulf.org
> To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
Joseph Landman, Ph.D
Scalable Informatics LLC,
email: landman at scalableinformatics.com
web  : http://scalableinformatics.com
phone: +1 734 612 4615

More information about the Beowulf mailing list