Gizmo Bionic Updates

Updated: May 26, 2020

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Changes to Bionic Nodes

26 May 2020

Host Key Change for rhino02 and rhino03

Configured ssh to provide the same host-key across all rhino-zero nodes. This will cause an error if you already have the key in place (i.e. have already connected to these hosts). It will raise an error like “DNS Spoofing Detected”.

The command ssh-keygen -R <hostname> will remove the key from the local database

New Local Packages

New packages “agrep” and “python-requests” have been installed.

Remove MOTD Messages for Unattended Upgrades

Spurious messages from the unattended-upgrades process have been removed from the MOTD

Bionic Updates

Local bionic mirror updated with latest changes from Canonical

CRIU Updated

Checkpointing utility “criu” has been updated from 3.13 to 3.48

19 May 2020

Fixes to csh/tcsh Logins

Errors in the Lmod login files would raise error messages and result in a malfunctioning Lmod environment. These fixes address those problems and should restore Lmod functionality to users using those shells

Ubuntu Update

We are applying the latest set of updated pacakges to the Bionic distribution. As this is an LTS release we expect that this will only fix bugs- there isn’t any new functionality introduced by these changes.

Note that this may take 24-36 hours to fully apply over the environment and doesn’t include kernel updates.

This change will also add automatic updating of OS packages.

Lmod Update

We are updating Lmod to version 8.3 from the current 7.8. A full changelog is available here, but the most significant change for the community is the “extended default” matching of modules.

New Software

  • tree
  • chromium-browser (on rhino nodes)

Postfix/SMTP

Fixed mail relay settings to allow nodes to send email

Disable ecryptfs Unwrap

Disabled the PAM settings to disable unwrap of ecryptfs directories at login. Users with ecryptfs volumes will need to manually unwrap.

Updated: May 26, 2020

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