Qlustar Announce July 2021

qlustar-announce@qlustar.org

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Security/Bug fix releases 12.0.0.5-b542f1391 / 11.0.1.9-b543f1392
by General announcements about Qlustar 24 Jul '21

24 Jul '21

The Qlustar releases 12.0.0.5-b542f1391 and 11.0.1.9-b543f1392 are ready including a number of security/bug fixes and improvements. In particular, they include a fix for the Sequoia local root exploit bug https://www.qualys.com/2021/07/20/cve-2021-33909/sequoia-local-privilege-es… Please check the following web pages for details about all security fixes and special update instructions: https://qlustar.com/qsa/2021/0724211 https://qlustar.com/qsa/2021/0724212 The following non-security related enhancements/bug fixes are included: For 12.0 only: - ntpd is replaced by systemd-timesyncd as the daemon to sync system time between head-node(s) and netboot nodes.

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Qlustar Feature Update 07/21
by General announcements about Qlustar 17 Jul '21

17 Jul '21

A number of new Qlustar features were completed recently and published together with the latest security updates. QluMan 12.0.3.1 has the following new capabilities: - PRE-SYSTEMD NODE CUSTOMIZATION has been introduced via a new config class [1]. Files and scripts placed in a particular path may be transferred to the booting node, and scripts being subsequently executed. This is a powerful and flexible new dynamic node customization feature. - ACTIVE DIRECTORY USER IMPORT into the Qlustar LDAP server is now possible via the GUI [2]. This allows for an AD integration without compromising HPC features also on large clusters. - QLUMAN MONITORING 1.0: This is the first milestone of the upcoming new Qlustar monitoring architecture [3] eventually replacing Nagios. It implements a filesystem-based check/trigger mechanism controlled by QluMan execd. First usage example: Start slurmd only once checks are successful and drain/undrain if they fail/recover later. - Support for DHCP-less boot (see below). - SUPPORT FOR ROUTED NETWORKS as primary boot networks and in NetworkFSMounts was added. Other new features: - Update from CENTOS 8.3 to 8.4 with integration of OPENHPC 2.3. - DHCP-LESS BOOT: DHCP is now only used during the initial BIOS/UEFI/PXE stage. All necessary node configuration data previously provided by DHCP is now provided via QluMan in the pre-systemd boot phase. - To control user access by ssh on slurm nodes, a new UNIX group _node-ssh_ was introduced. Members of this group are always allowed to ssh into a node, even without slurm job. - A new image module VIRTUALGL was added for experimental usage. Using it in a node image, Qlustar can provide 3D remote visualization on nodes with the required hardware. [1] https://docs.qlustar.com/Qlustar/12.0/ClusterOS/qluman-guide/Other-Configs.… [2] https://docs.qlustar.com/Qlustar/12.0/ClusterOS/qluman-guide/components/lda… [3] https://docs.qlustar.com/Qlustar/12.0/ClusterOS/administration-manual/monit…

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Security/Bug fix releases 12.0.0.4-b542f1382 / 11.0.1.8-b543f1384
by General announcements about Qlustar 09 Jul '21

09 Jul '21

The Qlustar releases 12.0.0.4-b542f1382 and 11.0.1.8-b543f1384 are ready including a number of security/bug fixes and improvements. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2021/0706211 https://qlustar.com/qsa/2021/0706212 The following non-security related enhancements/bug fixes are included: For 12.0 only: - QluMan 12.0.3.1 (GUI update to 12.0.3.1 needed as well) * Add pre-systemd node customization via new config class * Add AD user import functionality in GUI (final) * Add support for DHCP-less boot * Add PrologFlags=X11 to default slurm config * Add support for routed networks as primary boot networks and in NetworkFSMounts * Exexd now sets the correct time in pre-systemd boot phase * Don't show slurm stuff in GUI if slurm is not installed * Ignore mouse wheel events in comboboxes to prevent accidental changes * SlurmJobManagement: Simplify customizing columns * Drop obsolete torque pam support * Fix version update check - slurm module * Introduce group 'node-ssh'. Members of this group are always allowed to make a node ssh login, even without slurm job. - Added virtualGL image modules (experimental) For 11.0/12.0: - Move CentOS 8 edge platform to 8.4 + OpenHPC 2.3

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Qlustar Announce July 2021