- Ecnannounce-list - ecn.purdue.edu

Important - Avoid MacOS High Sierra Update for a few weeks
by Sundeep Rao 26 Jan '18

26 Jan '18

All, We are seeing a higher than normal number of problems with the latest MacOS - High Sierra (10.13.x). This update is causing problems ranging from frequent reboots to unrecoverable OS corruption. Our advice is to avoid updating to High Sierra for the next few weeks - but please do continue applying patches to MacOS El Capitan (10.11.x) and Sierra (10.12.x). Of course, always make sure that you have a good TimeMachine backup of your data before applying any patches or updates. If you have already updated to High Sierra successfully, there’s nothing more to do. If you have updated to High Sierra and are having problems, please let us know right away. If you have any questions, please direct them to www.purdue.edu/ecn/contactus - and we will respond as soon as possible. Thanks, Sundeep Rao ECN

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All linux servers to be patched and rebooted overnight
by Sundeep Rao 04 Jan '18

04 Jan '18

All, Please be aware that ALL ECN linux servers will be rebooted overnight (tonight) to patch recently announced serious security flaws. Please save all your documents and log off at the end of the day today to prevent data loss from open files. As more information about this flaw becomes available, we may have other mass patching and updating (with additional reboots) to do this month. Your patience during this time is greatly appreciated. Sorry for the inconvenience, -Sundeep ECN PS: Patches for this flaw are currently expected to have an initially estimated performance hit in the 20% range. Not exactly how we wanted to start 2018!

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Reminder: Partial website outage this Sunday, Sep 17th
by Sundeep Rao 15 Sep '17

15 Sep '17

All, This is a reminder for the partial ECN website outages for Sunday Sep 17th, from 8am to 5pm. Thanks, -Sundeep Rao ECN PS: I doublechecked the date and day this time!

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Corrected Date: Partial ECN website outage on Sunday, Sep 17th
by Sundeep Rao 12 Sep '17

12 Sep '17

As calendar-aware people have noticed, Sunday is the 17th, not the 18th. We will send a reminder on friday. (My apologies for the spam.) -Sundeep All, Please be aware of maintenance being performed on ECN's Oracle and Zope servers on Sunday, Sep 17th from 8am - 5pm. Website functionaility will be partial and sporadic. This does not affect the IIS and MySQL servers, nor our apache sites. Our apologies for the inconvenience. -Sundeep Rao (on behalf of Dave Carmichael) ECN PS: You are receiving this broadcast email because you have an account on at least one ECN server.

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Partial ECN website outage on Sunday, Sep 18th
by Sundeep Rao 12 Sep '17

12 Sep '17

All, Please be aware of maintenance being performed on ECN's Oracle and Zope servers on Sunday, Sep 18th from 8am - 5pm. Website functionaility will be partial and sporadic. This does not affect the IIS and MySQL servers, nor our apache sites. Our apologies for the inconvenience. -Sundeep Rao (on behalf of Dave Carmichael) ECN PS: You are receiving this broadcast email because you have an account on at least one ECN server.

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ECN Dept Server Reboots - Thur AM
by Joshua Harley 19 Apr '17

19 Apr '17

All, On Thursday morning, April 20, all ECN supported departmental Linux servers will be rebooted starting at 5:30AM to patch a critical kernel vulnerability. List of servers to be rebooted: AAE: roger.ecn.purdue.edu ABE: danpatch.ecn.purdue.edu ABE: pasture.ecn.purdue.edu BME: weldon.ecn.purdue.edu CE: bridge.ecn.purdue.edu ChE: atom.ecn.purdue.edu DOE: coevideo.ecn.purdue.edu DOE: fairway.ecn.purdue.edu DP: synergy.ecn.purdue.edu ECE: dynamo.ecn.purdue.edu ECE: min.ecn.purdue.edu ECE: shay.ecn.purdue.edu EEE: green.ecn.purdue.edu ENE: eagle.ecn.purdue.edu EPICS: innovate.ecn.purdue.edu IE: gilbreth.ecn.purdue.edu ME: friction.ecn.purdue.edu ME: tools.ecn.purdue.edu ME: torsion.ecn.purdue.edu ME: widget.ecn.purdue.edu MSE: materials.ecn.purdue.edu NE: helios.ecn.purdue.edu SWT: and-home.ecn.purdue.edu SWT: and-srvs.ecn.purdue.edu SWT: sb-home.ecn.purdue.edu SWT: sb-srvs.ecn.purdue.edu PolyTech: techstor1.ecn.purdue.edu VET: zoo.vet.purdue.edu Sent on behalf of Dave Carmichael. Joshua Harley IT Site Manager Engineering Computer Network Purdue University harley(a)purdue.edu

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REMINDER: Purdue Isilon Storage outage this weekend!
by Sundeep Rao 07 Oct '16

07 Oct '16

All, This is a reminder that the Isilon storage will be migrating this weekend and will therefore be unavailable (This includes storage on myhome.itap.purdue.edu and some specific research shares) Details at: http://eng.purdue.edu/jump/1e4933a Thanks, -Sundeep Rao ECN

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ECN supported Linux machine to be rebooted Tuesday 3/1 or Thursday 3/3
by Rich Franks 22 Feb '16

22 Feb '16

Good afternoon- ECN staff members need to patch and reboot ~560 of our redhat linux workstations and servers to fix a serious vulnerability in glibc, a foundational library for virtually all services. Essentially, this is all ECN supported RedHat Enterprise version 6 machines. We plan to take a two-stage approach to try to minimize disruption, and give us a smaller subset of potential problems to work through. Please try to not have running jobs during these days, you run the risk of job interruption. 1. On Tuesday, March 1st, all "standalone" linux machines will be rebooted. That is to say, any/all machines which do not share data via filesystems via NFS and/or Samba/CIFS services. Standalone machine are typically used by individuals in their lab or office. 2. On Thursday, March 3rd, all of the "homeserver" machines, which do serve filesystems to other machines via NFS and/or Samba/CIFS, will be rebooted. If you are interested in further details of the vulnerability, this is a good place to start:http://www.kb.cert.org/vuls/id/457759 If you are able to have your machine rebooted sooner, or if the proposed schedule imposes a hardship upon you/your users, please contact ECN via the hardware queue (email hardware(a)ecn.purdue.edu) and we will do our best to work with you. Thank you for your patience while we attempt to address this serious matter. Rich Franks, Systems Engineer Engineering Computer Network

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[REMINDER] [OUTAGE] MSEE Power outage, Saturday, August 15th, 7am-9pm
by Sundeep Rao 14 Aug '15

14 Aug '15

All, You are receiving this email because you have an account on an ECN system. Please remember that there is a major power outage for the MSEE building tomorrow, Saturday, Aug 15th, from 7am - 9pm. This will be a total shutdown, including airhandling, so no one will be allowed in the building. Please plan for this outage, since it affects the vast majority of ECN services including file servers, license servers, websites, and mail hosted on ECN servers (Not Exchange and MyMail). Thanks, -Sundeep Rao ECN

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[OUTAGE] MSEE Power outage, Saturday, August 15th, 7am-9pm
by Sundeep Rao 03 Aug '15

03 Aug '15

All, You are receiving this email because you have an account on an ECN system. Please be aware of another major power outage announced for the MSEE building during the day, Saturday, Aug 15th. This will be a total shutdown, including airhandling, so no one will be allowed in the building. Please plan for this outage, since it affects the vast majority of ECN services including file servers, license servers, websites, and mail hosted on ECN servers (Not Exchange and MyMail). We will send you an additional reminder closer to the date. Thanks, -Sundeep Rao ECN ============================================================ PHYSICAL FACILITIES ENERGY AND CONSTRUCTION FR: Larry Kult DA: July 29, 2015 RE: MSEE Electrical Shutdown Building(s) Affected: MSEE (Materials and Electrical Engineering) Utility Shutdown Notice: This notification is for a complete electrical shutdown at MSEE. This work is associated with the Multiple High Voltage Lead Cable Replacements - 2015 project. Date/Time of Shutdown: 7:00am Saturday, August 15, 2015 to 9:00pm Saturday, August 15, 2015

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