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News

Cory Hall Network Maintenance, Mon. 5/16 5-7AM

May 12, 2022 by Derek Calderon

Between 5 and 7AM on Monday, May 16th, we will be performing firmware upgrades on various Cory Hall network hardware. Wired networks will be unavailable for approximately 15 minutes beginning at 5:00AM. Wireless networks will experience a number of interruptions throughout the two hour period. We expect all connectivity will be restored by 7AM.

We recommend system administrators check their systems on Monday morning after 7AM to verify they are working as expected. Some systems or services, such as nfs mounts, may need to be restarted.

This maintenance is complete as of 6:30AM. Please contact us at help@eecs.berkeley.edu if you have any questions, or notice any lingering issues.

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

Jacobs Hall Network Outage, 5/8

May 8, 2022 by Derek Calderon

We are investigating an outage of Jacobs Hall wired networks which began approximately 2:30AM on May 8th. We currently believe that wi-fi is unaffected. An update will be posted this afternoon when we have more information.

Update: All Jacobs Hall network service was restored shortly after 2PM. Please email help@eecs.berkeley.edu if you notice any continuing issues.

Filed Under: Resolved Incidents Services: Wired Networking

May 2022 Windows Server Patching

May 6, 2022 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, May 10th, 2022. PRINT, WINTERM and WDS will automatically patch and reboot Wednesday, May 11th, at 3:00 am.

WINTERM may be unavailable till 10:00 am Wednesday, May 11th, depending on additional software updates.

[Read more…] about May 2022 Windows Server Patching

Filed Under: Resolved Incidents Services: Print Server, WDS, winterm.eecs

Wi-Fi Compatibility Issues with Newer wpa_supplicant Versions, including Ubuntu 22.04

April 29, 2022 by Derek Calderon

We’ve confirmed an issue affecting Linux wireless clients using wpa_supplicant version 2.10, which includes the already-released Ubuntu 22.04. These clients are unable to connect to both eduroam and EECS-Secure due to an incompatibility in TLS negotiation methods.

We are working with our vendor to see if the eduroam and EECS-Secure authentication servers can be updated to comply with the relevant RFC. Some Linux distributions, including Ubuntu 22.04 and Fedora 36, are working on patches to address this issue from the client side.

Until a fix is deployed for your distro or our software, we suggest those affected by this issue employ the fix described in this link:
https://askubuntu.com/questions/279762/how-to-connect-to-wpa2-peap-mschapv2-enterprise-wifi-networks-that-dont-use-a-c/1405397#1405397

Our thanks to Alex Reinking, a member of the EECS community, who first reported this issue and also provided the fix linked above.
This post was updated on May 5th with newer information and to correct some errors.

Filed Under: News Services: Linux, Wireless Networking

Update to Domain Controller Group Policy

April 27, 2022 by Lars Rohrbach

We are implementing an update to Group Policy that affects our Windows Domain Controllers this morning at 10am. No impact is expected on end users, but we are mindful that a similar change last week caused an unexpected problem with LDAP-auth (see https://iris.eecs.berkeley.edu/news/resolved-incidents/eecs-ldap-logins-not-working/).

This update improves the security profile of our Domain Controllers. In particular, we are removing explicitly-listed Null Session Named Pipes, as is best practice.

Filed Under: Resolved Incidents Services: Active Directory

Announcing Retirement of the EECS-Secure Wireless Network

April 21, 2022 by Derek Calderon

EECS-Secure Broadcast Ceases May 16

On Monday, May 16th, at 7AM we will cease public broadcast of the EECS-Secure wireless network. The network will continue to exist and devices already configured to use it will be able to continue to do so. However, it will not be available as a visible option to new devices which are not currently configured to connect to EECS-Secure. In other words, EECS-Secure will become a hidden SSID.

We recommend users of EECS-Secure begin transitioning to eduroam effective immediately. Information about how to connect to eduroam is available at:
https://technology.berkeley.edu/wi-fi

Please read the full post below for more information.

[Read more…] about Announcing Retirement of the EECS-Secure Wireless Network

Filed Under: Highlights, News Services: Wireless Networking

EECS LDAP logins not working

April 20, 2022 by Lars Rohrbach

We are investigating an issue with EECS Windows Domain Controllers, preventing LDAP-to-Windows password passthrough from working. This affects all systems that rely on EECS LDAP for authentication, including various webpages, the EECS-Secure wireless network, and linux machines configured to use EECS LDAP. The issue began at approximately 7:45PM on 4/20.

[Read more…] about EECS LDAP logins not working

Filed Under: Resolved Incidents Services: IRIS Website, Unix Login Server, Wireless Networking

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Wednesday April 13, 2022 06:30-07:45 am

April 11, 2022 by Mark Kraitchman

Various Linux servers will be down for patching and needed reboots to activate changes delivered by some RHEL patches.

login.EECS.Berkeley.EDU is scheduled for downtime from 6:30am to 7am.

The departmental dhcp server is scheduled for downtime from 6:30am to 7am.

cronus one of the departmental DNS and time servers is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS and time server is scheduled for downtime from 7:00am-7:15am.

The departmental authenticating outgoing SMTP server gateway.eecs is scheduled for downtime from 7:30am to 7:45am.

We expect actual downtimes to be less than scheduled.

[Read more…] about Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Wednesday April 13, 2022 06:30-07:45 am

Filed Under: Resolved Incidents Services: DHCP, DNS, NTP, SMTP, Unix Login Server

April 2022 Windows Server Patching

April 8, 2022 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, April 12th, 2022. PRINT, WINTERM and WDS will automatically patch and reboot Wednesday, April 13th, at 3:00 am.

WINTERM may be unavailable till 10:00 am Wednesday, April 13th, depending on additional software updates.

[Read more…] about April 2022 Windows Server Patching

Filed Under: Resolved Incidents Services: Print Server, WDS, winterm.eecs

Soda 3F Wi-Fi Outage, 4/4/22

April 4, 2022 by Derek Calderon

Wi-Fi networks for a large portion of Soda Hall third floor are offline since 7:20 this morning due to a switch failure. Staff are currently in transit to install a replacement.

Update 11:27: Wi-fi service in most areas was restored around 10:35. The remainder was restored at 11:25. Please contact help@eecs.berkeley.edu if you notice any ongoing issues.

Filed Under: Resolved Incidents Services: Wireless Networking

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Recent Highlights

IT Support During Winter 2022 Energy Curtailment

December 7, 2022 by Lars Rohrbach

Upcoming Change to EECS Firewall Handling of SSH

September 22, 2022 by Lars Rohrbach

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