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Instructional & Research Information Systems

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CIFS shares from Project/Home unavailable

August 14, 2026 by Lars Rohrbach

Windows and MacOS systems use CIFS shares on our NetApp fileservers for home directories and project space. With the sunsetting of our EECS Active Directory, we are in the process of migrating our NetApp to the Campus Active Directory. In that process, we’ve run into some unexpected issues, and are working with campus IT staff to resolve them.

At this time, CIFS shares remain unavailable.

NFS shares, as typically used by Linux/Unix systems in EECS, are not affected.

We apologize for the service interruption. We will continue working with campus staff to restore CIFS service as soon as possible.

Filed Under: Active Incidents Services: Home Directory Storage, Project Storage

August IRIS Server Patching

August 7, 2026 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, August 11th, 2026. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.

Linux servers lists.eecs, iris2.eecs, (for access to the network and roster databases) will be patched and rebooted Wednesday night. DNS servers cronus and themis may also be briefly unavailable while rebooting at approximately 8:00pm Tuesday.

PRINT, WINTERM, and WDS will automatically patch and reboot Wednesday, August 12th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.

On Thursday, August 13th, the departmental DHCP server is scheduled for downtime from about 9am to 9:30am (actual downtime is expected to be shorter than scheduled). Linux login servers login.eecs/login-mfa.eecs will also be patched and rebooted around this time.

Filed Under: Scheduled Maintenance Services: DHCP, Mailing Lists, Print Server, Unix Login Server, WDS, winterm.eecs

July IRIS Server Patching

July 13, 2026 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, July 14th, 2026. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.

Linux servers lists.eecs, iris2.eecs, (for access to the network and roster databases) will be patched and rebooted Wednesday night. DNS servers cronus and themis may also be briefly unavailable while rebooting at approximately 8:00pm Tuesday.

PRINT, WINTERM, and WDS will automatically patch and reboot Wednesday, July 15th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.

On Thursday, July 16th, the departmental DHCP server is scheduled for downtime from about 9am to 9:30am (actual downtime is expected to be shorter than scheduled). Linux login servers login.eecs/login-mfa.eecs will also be patched and rebooted around this time.

[Read more…] about July IRIS Server Patching

Filed Under: Resolved Incidents Services: DHCP, Mailing Lists, Print Server, Unix Login Server, WDS, winterm.eecs

EECS Border Firewall Changes, 6/24

June 24, 2026 by Derek Calderon

This morning, June 24th around 7:15 AM, we updated the firewall configuration for our Active Directory and Windows server infrastructure. Please contact us at help@eecs.berkeley.edu if you notice any possible issues.

Filed Under: Resolved Incidents Services: Active Directory, Wired Networking

EECS Border Firewall Changes, 6/23

June 23, 2026 by Derek Calderon

This morning, June 23rd at 7:15 AM, we made some adjustments to the configuration of the EECS border firewall. We do not expect these changes to have any effect on network traffic, but unanticipated effects may be possible.

Please contact us at help@eecs.berkeley.edu if you notice any network connectivity issues.

Filed Under: Resolved Incidents Services: Wired Networking, Wireless Networking

June IRIS Server Patching

June 8, 2026 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, June 9th, 2026. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.

Linux servers lists.eecs, iris2.eecs, (for access to the network and roster databases) will be patched and rebooted Wednesday night. DNS servers cronus and themis may also be briefly unavailable while rebooting at approximately 8:00pm Tuesday.

PRINT, WINTERM, and WDS will automatically patch and reboot Wednesday, June 10th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.

On Thursday, June 11th, the departmental DHCP server is scheduled for downtime from about 9am to 9:30am (actual downtime is expected to be shorter than scheduled). Linux login servers login.eecs/login-mfa.eecs will also be patched and rebooted around this time.

[Read more…] about June IRIS Server Patching

Filed Under: Resolved Incidents Services: DHCP, Mailing Lists, Print Server, Unix Login Server, WDS, winterm.eecs

EECS DHCP Outage, May 19th

May 19, 2026 by Derek Calderon

We experienced an issue with our DHCP service this morning, which prevented a number of machines from connecting to the wired network. This issue began around 3AM and was resolved by 10:30AM. If your machine still cannot get online, we suggest rebooting it to try and obtain a new DHCP lease.

We believe that this configuration issue was triggered by yesterday’s datacenter firewall issues. We will be improving our scripts to allow us to better detect and mitigate similar issues in the future.

Please contact us at help@eecs.berkeley.edu if you have any questions, or if you continue to experience network issues.

Filed Under: Resolved Incidents Services: Wired Networking

May IRIS Server Patching

May 11, 2026 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, May 12th, 2026. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.

Linux servers lists.eecs, iris2.eecs, (for access to the network and roster databases) will be patched and rebooted Wednesday night. DNS servers cronus and themis may also be briefly unavailable while rebooting at approximately 8:00pm Tuesday.

PRINT, WINTERM, and WDS will automatically patch and reboot Wednesday, May 13th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.

On Thursday, May 14th, the departmental DHCP server is scheduled for downtime from about 9am to 9:30am (actual downtime is expected to be shorter than scheduled). Linux login servers login.eecs/login-mfa.eecs will also be patched and rebooted around this time.

[Read more…] about May IRIS Server Patching

Filed Under: Resolved Incidents Services: DHCP, Mailing Lists, Print Server, Unix Login Server, WDS, winterm.eecs

Investigating Windows mount issue with new fileserver

April 19, 2026 by Lars Rohrbach

We have reports of problems with CIFS mounts of home directories and project shares from the new NetApp fileserver. CIFS is typically used by Windows or mobile clients. Staff are investigating and will report here as we learn more.

NFS mounts (typically unix/linux) are working as expected.

[Read more…] about Investigating Windows mount issue with new fileserver

Filed Under: Resolved Incidents Services: Home Directory Storage, Project Storage

April IRIS Server Patching

April 10, 2026 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, April 14th, 2026. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.

Linux servers lists.eecs, iris2.eecs, (for access to the network and roster databases) will be patched and rebooted Wednesday night. DNS servers cronus and themis may also be briefly unavailable while rebooting at approximately 8:00pm Tuesday.

PRINT, WINTERM, and WDS will automatically patch and reboot Wednesday, April 15th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.

On Thursday, April 16th, the departmental DHCP server is scheduled for downtime from about 9am to 9:30am (actual downtime is expected to be shorter than scheduled). Linux login servers login.eecs/login-mfa.eecs will also be patched and rebooted around this time.

[Read more…] about April IRIS Server Patching

Filed Under: Resolved Incidents Services: DHCP, Mailing Lists, Print Server, Unix Login Server, WDS, winterm.eecs

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