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IRIS

Instructional & Research Information Systems

Wi-Fi Unavailable, Wed. Oct. 21

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Wi-fi networks in Soda, Cory, Sutardja Dai, and BWRC are unavailable this morning due to an issue resulting from this morning’s scheduled campus network maintenance. We are working with campus to restore wi-fi service ASAP.

Update 11:45AM: Wi-fi networks should now be back online in all locations. Please let us know at help@eecs.berkeley.edu if you continue to notice any wi-fi issues.

EECS Border Firewall Changes, Tues. October 20

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On the morning of Tuesday, October 20th, we will be making significant changes to the behavior of the EECS border firewall. For detailed information about these changes, please see our EECS Border Firewall page (this page requires login).

Update 10/20 07:39: This change has been completed. Please email us at help@eecs.berkeley.edu if you have any questions or notice any network connectivity issues.

SSH Connection Issues, 10/8-9

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For a period between approximately 10/8 14:50 and 10/9 07:40, we had an error in our firewall configuration which was blocking most SSH connections into the EECS network.

The error has been corrected, and SSH connections should be working as expected at this time. Our current firewall policy is to allow SSH connections inbound from the campus VPN and authenticated wi-fi networks (eduroam and Berkeley-IoT); connections from all other sources are blocked.

Please email us at help@eecs.berkeley.edu if you have any network connectivity issues, or questions about our SSH firewall policy.

Websites being worked on, redirecting here in the meantime

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Various websites hosted by EECS department webservice are temporarily being redirected here, to iris.eecs.berkeley.edu, while we continue work on the configuration of our webservers. Staff are working to restore normal webservice as soon as possible.

[Read more…] about Websites being worked on, redirecting here in the meantime

EECS DHCP Service Restored

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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.

Update to nameservers, NTP servers

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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.

CIFS shares from Project/Home unavailable

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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.

[Read more…] about CIFS shares from Project/Home unavailable