Unix Login Server

Unix Login Server, login.eecs

Various Linux servers (login, dhcp, DNS, SMTP, NTP) downtime Tuesday December 22, 2020 06:30-07:45am

December 21, 2020 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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP, NIS) downtime Tuesday November 17, 2020 06:30-07:45am

November 16, 2020 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, NIS and time servers is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS, NIS 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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP, NIS) downtime Tuesday October 27, 2020 06:30-07:45am

October 26, 2020 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, NIS and time servers is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS, NIS 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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP, NIS) downtime Tuesday October 13, 2020 06:30-07:45am

October 12, 2020 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, NIS and time servers is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS, NIS 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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP, NIS) downtime Wednesday September 2, 2020 06:30-07:45am

August 31, 2020 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, NIS and time servers is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS, NIS 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…]

Soda Hall Power Shutdown Tuesday 8/18 8am-8pm

August 12, 2020 by Derek Calderon

On Tuesday, August 18th, Soda Hall building power will be shutdown from approximately 8am to 8pm for required facilities work. There will also be sporadic brief outages to various IRIS services between 9am and 2pm due to network maintenance.

Our primary datacenter and network core will receive backup generator support and we generally expect all services to remain online throughout the day. However, we are taking the opportunity to perform a number of network maintenance items which would have otherwise necessitated multiple outages later in the year.

As a result there will be multiple brief interruptions to various services including NetApp file servers, DHCP and DNS service, and the login.eecs and winterm terminal servers. We expect each individual interruption will last for less than five minutes, and this work will be performed between 9AM – 2PM. This post will be updated when all network maintenance is complete.

After network services are fully restored, sysadmins may need to reboot their systems, restart/remount nfs file systems, etc. to get fully back online.

[Read more…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP, NIS) downtime Tuesday August 11, 2020 06:30-07:45am

August 10, 2020 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, NIS and time servers
is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS, NIS 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…]

Making access to login.eecs “opt-in”

August 5, 2020 by Lars Rohrbach

The department unix login server, login.eecs, allows access for all EECS Standard account holders via SSH. Authentication uses one’s EECS username and EECS Windows/LDAP password.

Being open for all EECS users — even those who never intend to use login.eecs — increases our chance of being attacked by brute-force methods, or abuse by those with stolen credentials. In an effort to limit our attack surface, we will be restricting who can login on login.eecs.

Beginning Tuesday, August 11, SSH access to login.eecs will be restricted to members of a new LDAP group. Anyone who has used login.eecs recently has already been added to this group.

If you would like to utilize login.eecs, and have not yet been added to this access group, please email help@eecs.berkeley.edu to request login.eecs access.

Various Linux servers (login, dhcp, DNS, SMTP, NTP, NIS) downtime Tuesday June 30, 2020 06:30-07:45am

June 29, 2020 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, NIS and time servers
is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS, NIS 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…]

Various Linux servers (login, dhcp, DNS, SMTP, NTP, NIS) downtime Tuesday June 9, 2020 06:30-07:45am

June 8, 2020 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, NIS and time servers
is scheduled for downtime from 6:45am-7:00am.

rhea the other departmental DNS, NIS 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…]