Instructional & Research Information Systems
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.
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 PatchingWe 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.
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 PatchingWe 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 fileserverMicrosoft 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 PatchingCampus Facilities Services is scheduled to perform an urgent repair, replacing the main circuit breaker serving Cory Hall’s 188 Lab and 1st floor Mezzanine. An email from Logan Baldini, our Director of Facilities and Capital Projects, already went out on April 8 to Cory Hall occupants.
Work will take place Thursday, April 16 Wednesday, April 29, 8:15pm — 11:15pm. Power will be shut down for most of the south and west side of Cory Hall, including stairwells. Detailed room breakdown is available via Google Doc, attached to the email sent out by Logan.
We do not expect to lose power to our network switches and routers in Cory Hall during this work. If we do have unexpected power loss to our network equipment, then access to services hosted in Cory Hall (e.g. any research or instructional servers in 165 Cory) will be affected; we will monitor our equipment, but would expect service to resume once the electrical work is completed.
[2026-04-14 | larsrohr ]
This work has been postponed by Campus Facilities Services. We will update or re-post when we have an revised schedule to report.
[Read more…] about Cory Hall partial power outage, Wednesday, April 29, 2026We are scheduling a NetApp migration to new hardware, from 8am to Noon 5pm-9pm on Saturday, April 18, 2026.
All Home directories and Project shares (CIFS/SMB and NFS) will experience disconnection during the migration that may cause data loss on active, open files. Please close your open files and save them before Friday morning. Services (e.g. webservice) that depend on this storage will also be temporarily down or unresponsive. Because this is a migration to new hardware, clients may experience a series of short (minutes-long) disconnections as volumes complete their migration steps.
When maintenance is completed, NFS clients may automatically resume normal operation, but a reboot should help if they don’t. CIFS clients (such as Windows and MacOS) may need to remount filesystems, or simply be rebooted.
[Read more…] about NetApp Fileserver Migration, Saturday April 18, 2026Microsoft will release their patches for the month on Tuesday, March 10th, 2026. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.
PRINT, WINTERM, and WDS will automatically patch and reboot Wednesday, March 11th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.
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.
On Thursday, March 12th, 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 March IRIS Server PatchingOn Monday, March 23rd, we will be adding some new ports to the list of ports that are blocked by the EECS border firewall.
For detailed information about the changes, please see our EECS Firewall Ports page (this page requires login). The list of ports that we will add to the block list is at the bottom of that page.
Update 3/23 8:05AM: These changes have taken effect, and the new ports are now being blocked from off-campus. Please contact us at help@eecs.berkeley.edu if you have any questions or notice any issues.