On the second Friday of every month, the monthly Windows updates are released. Please install them on your DESY Windows devices as soon as possible to ensure that they are up-to-date and secure.

To do this, connect your Windows device to the internal DESY network after the updates have been released. Use VPN if you are extern. When prompted or at the end of the day, restart or shut down your Windows device.

Seven days after the release of the updates, a forced restart of the computers will take place if this has not taken place in the meantime.


Hint:
On Wednesday which follows the release of the updates from 17:00 to max. 20:00, trouble-free working in the Windows environment cannot be guaranteed due to the monthly maintenance work on the central Windows servers.

It is recommended to log off or shut down DESY Windows devices on Wednesday before the maintenance starts. You should also log off from public Windows systems (terminal servers) beforehand.

Maintenance caused by: Windows updates and the monthly maintenance work on the corresponding central computers

Regular Maintenance Slot: TSM (ADSM) backup server

Time: each Tuesday, 12:00 pm - 8:30 pm
Systems: all

Impact: The TSM backup servers will be partly down. It will not be possible to restore files on the central Unix or Windows systems from backups made by the TSM.

An apology must be made in advance: It is always possible that things do not work as planned. Therefore the given ending times may not be kept as promised.

Maintenance caused by: Update of the Service

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The problem is solved by updating macOS to version 26.5.

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With macOS version 26.4, you may no longer be able to access Windows network drives using SMB. This is due to a confirmed bug in SMB client of MacOS.

Apple is expected to fix the issue in the next macOS version (26.5).

Until the fix is released, a workaround is available. For details, see the following webpage:
https://xwiki.desy.de/xwiki/short/507d4

Caused by; Bug in the SMB Client of macOS 26.4

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When digital security certificates are used in emails sent via Microsoft Outlook, it may occur that emails are sent incomplete.

Based on current findings, the issue arises after messages have already been saved as drafts. Starting from the second modification after the initial creation of a draft, changes are no longer saved in the message.

Please use one of the following workarounds to bypass the issue:

- Send emails via https://mail.desy.de
- Do not sign emails in Outlook with digital security certificates

For further details and step-by-step instructions, visit:
https://it.desy.de/services/e_mail/mail_clients/outlook/known_problems

The issue has been reported to the vendor for a problem solution.

The following two DESY standard PCs are currently no longer available from stock:

- Dell Pro Micro Lite QCM1250 (U5/16/512)
- Dell Pro 14 Plus PB14250 (with US keyboard)

If these devices are requested via the AMS, significantly longer delivery times must be expected. Depending on the outcome of the ongoing price negotiations, these devices may also no longer be available at the previous price.

Caused by; General shortage of RAM, hard drives, and SSDs on the market (see: https://www.techbook.de/pc-mac/hardware/dram-speicher-preis)

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In this storage service, the default settings for permissions when sharing a directory may lead to unplanned behaviour, which we would like to draw your attention to with this information.

The behaviour is based on the fact that the default settings also include the right to delete. The result can be that data becomes inaccessible to the person who shared the data if one of the persons with whom the data was shared moves it; this corresponds to copying it to the target folder and then deleting it in the source folder.
The files and directories are not lost, but are now in the directory tree of the person who moved them.

To work around this issue until it is fixed, the recommendation is not to move any data that has been shared with you via Sync & Share. Persons already affected will be informed directly.

A support request is in progress at the manufacturer.

If you have any questions, please contact uco@desy.de.
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On Friday, 15.05.2026 the PC Workshop (https://it.desy.de/dienste/pc_unterstuetzung/pc_beschaffung) will not be staffed.

Orders and PC repairs that may be requested on that day will be processed regularly again from Monday, 18.05.2026.

On 26.05.2026 the Registry resource "confluence" will be removed from the accounts to which it has been assigned and deactivated afterwards. Since no service access is currently managed via this permission, no disruptions should occur for users.

After deactivation, it will no longer be possible for namespace admins to assign this resource.

The Registry configurations (Blueprints, AutoAssignments, Dependencies, CleanUp rules) will be centrally changed from "confluence" to "xwiki-desy". Nevertheless, it is recommended to review Blueprints and AutoAssignments afterward.

Automations that access the Registry via REST API and check for this resource must be adjusted or removed by the developers accordingly.

On Tuesday, 26.05.2026 the printer service spool-lpr.desy.de, which is available for Linux and macOS, will be decommissioned. Until then, you should reconfigure your devices where you are using spool-lpr.desy.de. On these please use cups.desy.de instead. Instructions on how to proceed can be found on the following pages:

Linux: https://it.desy.de/services/druck/linux
macOS: https://xwiki.desy.de/xwiki/short/2857f#English-version

Additionally, please note the changes in the printing environment that have already taken place and were communicated in mid-April:
https://it-news.desy.de/?TicketID=1257&lang=en
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As part of the modernization of the printer service, significant changes will take effect for Linux and macOS users printing from the internal network. Printing using the guest print service via guestprint10 is not affected by these changes.

Please review the following points and adjust your settings as needed:

Discontinuation of Predefined Printer Names:
- Only one printer name per printer will remain (e.g., "...ps1").
- Printer names for special formats (e.g., "...ps1a3") or color printing (e.g., "...cp1") will be removed. Predefined settings are no longer available. Please manually select the respective tray or format in the print dialog of the used application.

Review and Adjust Printer Settings:
- Users of centrally managed Linux computers (so-called "green desktops") do not need to take any further action.
- If you are currently using spool-lpr.desy.de to setup printers, please switch to the new service cups.desy.de. Documentation for setting up cups.desy.de can be found here:

Linux: https://it.desy.de/services/druck/linux/
macOS: https://xwiki.desy.de/xwiki/short/2857f

spool-lpr.desy.de will be decommissioned in the near future.

If you require assistance or have any questions, please contact your group administration or the IT Helpdesk (uco@desy.de, extension 5005).
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If you use Outlook, the Zimbra web interface (https://mail.desy.de), or an Exchange ActiveSync account on your mobile device to read your emails, you can ignore the following information.

On 12.05.2026, an insecure method for sending emails (SMTP/STARTTLS, Port 587) will be disabled. To ensure you can continue sending emails after this date, please check your email client (e.g., Thunderbird) for the following settings and adjust them if necessary:

- Server name: mail.desy.de
- Port: 465
- Encryption: "SSL/TLS" or "SSL"

General instructions for setting up email clients can be found on the following pages:
https://it.desy.de/services/e_mail/mail_clients

Note: Thunderbird installations managed via DSM will be updated automatically in advance.
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