Instructional & Research Information Systems
We believe that DHCP service for EECS wired networks has been restored as of this afternoon (Friday, August 28).
If you have a system on the wired network which cannot obtain an IP address, even after rebooting, please email dcalderon@berkeley.edu with the system’s MAC address and the cable ID it is connected to. Messages sent to help@eecs may not be received.
We are aware that all IRIS services are currently down. More information will be forthcoming as it becomes available.
Our unix login server, login.eecs, is temporarily offline. We will be building a new virtual machine to replace it, and hope to have it in service by tomorrow.
We have maintained our own recursive nameservers within EECS for many years, enabling client machines to resolve hostnames to IP addresses. These servers also functioned as local NTP (time) servers. In the spirit of simplification, we are retiring these machines and will be utilizing campus servers for these services.
Effective immediately, we are updating our DHCP configuration, to point clients instead to campus nameservers ns1.berkeley.edu (128.32.136.9 and 128.32.206.9) and ns2.berkeley.edu (128.32.136.12 and 128.32.206.12). We are similarly updating the setting for NTP servers, pointing to campus NTP servers ntp1.net.berkeley.edu and ntp2.net.berkeley.edu.
Most machines in EECS are DHCP clients, and will pick up these changes automatically.
If you have statically configured nameservers or NTP servers on your systems, please update your configuration as soon as possible.
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.
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.
[Read more…] about August IRIS Server PatchingMicrosoft 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 PatchingThis 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.
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 Patching