[Wien] error in running .machines file

[Gavin Abo]

> As pointed in my mail I kept all the variable paths to bashrc file as 
> well as in the jobscript file.

You didn't mention you were using a job script.  I assumed you weren't.  
That may be important.  Some queue systems require a flag in the job 
script to export the environmental variables correctly like -V for PBS [ 
https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg16338.html 
].  If you are using something other than PBS, you will have to check 
the documentation for your queue system to see if automatically 
propagates your .bashrc settings or if you have to add a flag or 
something to do so.  I believe many of queues systems have their mailing 
list or forums were you can ask experts for that specific queue system 
if the information is not easy to find in their documentation.

> I already copied the key in the
> id_rsa.pub file to authorized_keys file (both are in the same server 
> where wien2k installed)  to make the password free ssh.
>
> [renwei at ln3 ~/.ssh]$ ls -la
> total 32
> drwx------  2 renwei renwei  4096 Jun 15 04:10 .
> drwx------ 44 renwei renwei  4096 Jun 15 04:10 ..
> -rw-------  1 renwei renwei  1200 May 19 13:46 authorized_keys
> -rw-------  1 renwei renwei  1675 May 17 13:44 id_rsa
> -rw-r--r--  1 renwei renwei   392 May 17 13:44 id_rsa.pub
> -rw-r--r--  1 renwei renwei 11641 Jun 14 10:45 known_hosts
>
> do I need to change the permission between the authorized_keys & 
> id_rsa.pub ...?

At 
https://www.tecmint.com/ssh-passwordless-login-using-ssh-keygen-in-5-easy-steps/ 
:

chmod 640 is used for authorized_keys which should give:

-rw-r-----

The r for the group owning the file [ 
https://www.comentum.com/unix-osx-permissions.html ] is different from 
what you have.  What you have may be fine, but you want to try changing 
it using the chmod 640 to be safe.

To get it working, you also may need to copy the SSH key to all of the 
compute nodes.  Did you do that?  I believe that can be done with either 
cat [ 
https://www.tecmint.com/ssh-passwordless-login-using-ssh-keygen-in-5-easy-steps/ 
] or ssh-copy-id [ https://www.ssh.com/ssh/copy-id ].



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