On 21/09/16 06:13, Simpson, Claire L wrote:

> srun: error: x11: unable to connect node node010

Can users ssh back from the compute node to the login node without being
prompted for a password/passphrase or to accept an ssh key?

That's usually the source of those issues in my experience.

SSH host based authentication within the cluster helps with that, along
with caching SSH keys in /etc/ssh/ssh_known_hosts.

Best of luck,
 Christopher Samuel        Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: sam...@unimelb.edu.au Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/      http://twitter.com/vlsci

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