Unix Login Server

Unix Login Server, login.eecs

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Wednesday May 25, 2022 06:30-07:45 am

May 23, 2022 by Mark Kraitchman

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

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.

UPDATE

[2022-05-25| kraitch ]

Maintenance has been completed.

Resolved as of 2022-05-25 7:16 am

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…]

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.

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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Tuesday March 1, 2022 06:30-07:45 am

February 28, 2022 by Mark Kraitchman

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

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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Tuesday January 19, 2022 06:30-07:45 am

January 18, 2022 by Mark Kraitchman

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

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…]

Dept NetApp Filer Maintenance, 3pm January 3, 2022

December 21, 2021 by Lars Rohrbach

We will be performing an OS upgrade on our departmental NetApp filers (upgrading from OnTAP version 9.7 to 9.8), which will require a service outage from 3pm to 9pm on Monday, January 3, 2022. All NFS and CIFS access to the filer (home and project storage) will be down during that time. Services (e.g. webservice) that depend on this storage will also be down or unresponsive.

While we are scheduling a 6 hour maintenance window, we will attempt to minimize the service outage if possible.

When maintenance is completed, NFS clients should automatically resume normal operation. CIFS clients (such as Windows and MacOS) may need to remount filesystems, or simply be rebooted.

[Read more…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Tuesday November 30, 2021 06:30-07:45 am

November 29, 2021 by Mark Kraitchman

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

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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Tuesday October 19, 2021 06:30-07:45 am

October 18, 2021 by Mark Kraitchman

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

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…]

Various Linux servers (login, dhcp, DNS, NTP) downtime Wednesday September 15, 2021 06:30-07:15am

September 14, 2021 by Mark Kraitchman

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

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.

We expect actual downtimes to be less than scheduled.

[Read more…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Wednesday June 16, 2021 06:30-07:45am

June 14, 2021 by Mark Kraitchman

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

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 7:5am to 7:45am.

We expect actual downtimes to be less than scheduled.

[Read more…]