Notifications for NSLS-II Computer Users

["Wilkins, Stuart (NSLS2 JIRA)" <nsls2jira AT bnl.gov>]

NATIONAL SYNCHROTRON LIGHT SOURCE II

 

NOTIFY-30

Work for Maintanance Period 10/26/2021

This issue has been updated.

Reported by:	Wilkins, Stuart
Assigned to:	Wilkins, Stuart
Priority	High
Outage/Maintenance on	26/Oct/21 8:00 AM
Last updated	22/Oct/21 2:19 PM
Expected Resolution	27/Oct/21 2:00 PM

Update

Please see 2 additional items added below. Work will start at the beginning of the maintenance period on Tuesday.

Description

The work below will be undertaken in the maintenance period:

• The use of SSH port forwarding at the beamlines will no longer be permitted from workstations and displays. If you need to use port forwarding to a beamline computer, please use a system in the limited zone such as an ioc.
• The beamline DNS servers will be replaced with new hardware. There may be brief downtime as the old servers are retired and the new servers brought into service.
• The beamline DHCP servers will be consolidated into one new server. There should be no impact to beamline operations but DHCP requests may fail while the transition occurs.
• ITD Network Engineering will change the network access control lists (ACLs) to allow certain accelerator systems to see some common services.
• ITD Network Engineering will change routing to allow accelerator systems to connect externally thought the N2SN firewall as opposed to using the tiny proxy.
• The NSLS2 IP management will be moved to a new server https://ip.nsls2.bnl.gov
• The NSLS2 Nagios monitoring will be rebuild and moved to https://mon.nsls2.bnl.gov/
• Data will be transferred from the GPFS central to Lustre for CryoEM
• The default password prompt for beamline systems will be changed from BNL ITD (Active Directory) Password:  to Password: . This change is to revert to the default behavior of centrify now that the beamline computers use Active Directory exclusively.
• The IT standing team will migrate VMs from the virtualbox infrastructure to the new VMWare infrastructure. There may be outages as these machines are migrated across.
• The NX cloud server will be updated to the latest version in order to fix various bugs experienced by all users. All running sessions will be terminated. Updates at the beamlines will be coordinated separately with each beamline. Down time expected no more than 15 minutes.
• Computers in which autologin is used for guacamole will be configured to disable logout to prevent users inadvertently logging out of the desktop session while using guacamole for remote access.

Areas Affected

NSLS-II beamlines and accelerator