03-Jul-2023

NoMachine Update: Tuesday, 04-Jul-2023

If you are a NoMachine user, at the end of TODAY, Monday, 03-Jul-2023, please save your work and log out of any NoMachine Virtual Desktops. On Tuesday, 04-Jul-2023, starting at 4:00 AM, all NoMachine servers will be updated to the latest release. When this update occurs, remote connections will be interrupted and all NoMachine Virtual Desktops will be deleted. This release includes one bug fix submitted by CLASSE, but otherwise should be transparent. Please submit a ServiceRequest with any questions or concerns.

CLASSE Computing Outage: 28-Jul-2023 to 31-Jul-2023

From Friday, 28-Jul-2023, through Monday, 31-Jul-2023, CLASSE computing services both onsite and offsite will be disrupted by a scheduled power outage at Wilson Lab. Please note that, although Wilson Lab will regain power on Sunday, 30-Jul-2023, we do not expect to have most CLASSE-IT services restored until end-of-business on Monday, 31-Jul-2023. Additional recovery efforts might extend farther into the week.

During the outage, the following CLASSE services will not be available from any location, onsite or offsite:

• Remote logins via ScreenConnect, NoMachine, etc.
• CLASSE VPN and other CLASSE networks
• Central filesystems, including Samba and Globus
• CLASSE web services: wiki, Indico, Timesheet, CLASSE website, CHESS UserDB, Gitlab, etc.
• AppsAnywhere
• Network license servers (Matlab, Autodesk Vault, Cadence, Mathematica, etc.)
• Compute Farm
• Printing

However, central Cornell services will be available, e.g. Cornell email, Teams, Box, Workday, Zoom, etc. The CHESS website and CBB website will also be available.

In advance of the power outage, users may gracefully shut down their computers, although doing so will prevent them from automatically rebooting when power is restored.

Summary of availability during the outage

		Wilson Lab (incl. modules)	Newman Lab & PSB	Wilson Annex & Pine Tree Road	Notes
Network	Wired	Not available	Not available	Available	Cornell wiring in Annex and PTR
	Wifi (Cornell)	Not available	Available	Available	RedRover, eduroam, Cornell Visitor
	Wifi (CLASSE)	Not available	Not available	---	LNS Protected
Computers	Laptops	Not available	Available	Available	No new user logins
	Desktops	Not available	Not available	Available	No new user logins
Services	CLASSE	Not available	Not available	Not available	See list of CLASSE services above
	Cornell	Available (on phones w/ data plans)	Available	Available	See list of Cornell services above

In the upcoming weeks, we will provide more information about the outage, including a detailed schedule. If you have any questions or concerns, please contact us via a ServiceRequest.

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General network and server maintenance will occur every Tuesday from 12:00 noon to 2:00 PM. The CLASSE-IT group will always announce any expected disruptions in our NewsLetter and via CLASSE-IT-NEWS-L, but with the size and complexity of our network there is always the potential for something to go wrong. We will do our best to contain all network maintenance and planned outages to Tuesdays from 12:00 noon to 2:00 PM.

Unless other arrangements have been made, CLASSE-managed Windows systems may be updated and rebooted on Tuesday morning at 2:00 AM, so please avoid critical or lengthy operations at that time. For more details, please see SystemExpectations.

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Questions or problems? Submit a service request.

Other resources:

• CLASSE-IT Home Page
• Previous newsletters

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