We will be making multiple potentially disruptive changes to ICS systems on this day.
After this change, email that does not originate on a mail server that is identified in the ICS SPF record may be rejected or tagged as spam at the destination. See email settings for more important information about how this affects uesrs at ICS.
In order to facilitate the retirement of the existing border switch, existing network switches that link to it will have their up link ports moved. This move will cause temporary network outages to the servers throughout the day.
The UPS in critical rack A05 will be reconditioned. This process will take about an hour during which time servers in this rack that do not have dual power supplies will be unavailable.
* The sites students.ics.uci.edu and faculty.ics.uci.edu will be offline.
OS patches will be applied to all IGB CentOS 5, CentOS 6, CentOS 7 and Ubuntu servers throughout the day. After patches are applied the computers will be rebooted.
Latest patches will be applied to all CentOS5, CentOS6 and CentOS7 hosts. Hosts will not be rebooted unless otherwise noted above.
All ICS systems with Virtual Box currently installed will be updated to the latest available. Any running Virtual Box instances will be shutdown.
All ICS Openlab hosts will be upgraded to CentOS7 for the Fall Quarter 2016. Faculty may test out this new environment today by logging into openlab7.ics.uci.edu.
The Samba 4 servers will be deployed in place of the Samba 3 servers. It is important that anyone who has their files opened through the Samba server should close any file connections opened on the desktop as the samba connection will be dropped.
Auto response on all ICS Mailman lists will be turned off in order to prevent mail bombing and preserve the ICS email server reputation.