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Wireless Enhancements

Categories: Midd Blogosphere

We’re working to replace and upgrade many of the existing wireless access points across Middlebury campus. You may see staff or contractors working with cabling and ladders in various buildings over the coming weeks.

We are upgrading to keep with the best wireless technology and address coverage or performance concerns. Along with entire building enhancements including McCardell Bicentennial Hall and Davis Family Library, the model we’re wholesale replacing is pictured here. If you see one of these, know that it will be replaced soon!
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Thanks for your patience and support as we strive to keep our systems functioning optimally!

System and Network Maintenance this Sunday

Categories: Midd Blogosphere

During our regular maintenance window this Sunday, Oct 19th between 6 and 10 am we have the following activities planned.

 

  • A patch will be applied to the DNS servers requiring sequential reboots. DNS resolution may see some slow responses for up to 20 minutes
  • Two of our spam filters will be moved between racks in one data center. There’s sufficient redundancy that no impact will be seen
  • One of our database servers and a print server will be rebooted. Printing queues may be unreachable for up to 15 minutes
  • One of our two ISP circuits will be down for 2 hours while the provider performs maintenance

              o   We have sufficient redundant bandwidth. Internet reachability will not be impacted

              o   Point-to-Point VPNs may drop a few packets, twice, during route changes

  • The VSphere interface to our virtualized server environment will be patched and rebooted. Reachability will be down for up to 15 minutes
  • Middfiles will be rebooted and unreachable for up to 15 minutes

 

We appreciate your patience as we continuously strive to keep our systems functioning optimally.

 

Billy Sneed

ITS – Central Systems & Network Services

Middlebury College

Middlebury, VT  05753

(802) 443-5769

System and Network Maintenance this Sunday

Categories: Midd Blogosphere

During our regular maintenance window this Sunday, Oct 5th between 6 and 10 am we have the following activities planned:

  • Middfiles will be offline for up to 2 hours within the 6-10 maintenance window while the storage arrays are moved from the Library data center to our new data center.

o   All files on Middfiles will be unavailable during this window, including home directories, Orgs, Classes, etc…

 

  • The SAN storage controllers will receive a small point release upgrade. No downtime is associated with this work.

 

  • We will move a pair of fiber channel switches form the Library data center to our new data center. Hosts served by these switches are dual connected and may see a brief (~5 seconds) unavailability.

 

  • The border firewalls will receive an upgrade. There are 4 brief Internet outages expected during the upgrade, each lasting up to 30 seconds.

o   All of Middlebury Internet access and the VPN to MIIS will be impacted.

 

  • One of our two Internet Service Providers will be performing a hardware change. This will result in one of our Internet circuits being down around 7am for up to 30 minutes. We have adequate Internet bandwidth on either single circuit to handle our needs during this time.

o   Point to point VPNs may see a brief drop while the path re-routes.

  • The Filemaker Pro database service will be interrupted for about 10 minutes between 8 and 9 am for application maintenance.

 

We appreciate your patience as we continuously strive to keep our systems functioning optimally.

 

 

William D Sneed

ITS – Central Systems & Network Services

Security Note – ‘Shellshock’ Vulnerability

Categories: Midd Blogosphere

As you may have read in mainstream news media outlets, a vulnerability was recently discovered in the Bourne Again Shell component of the Linux operating system. This vulnerability could allow an attacker to execute shell commands through the shell environmental variables. It has also been leveraged for denial of service attacks and other malicious activity.

ITS has already patched relevant local systems and is expecting vendors to patch any relevant externally-hosted systems. There is no evidence to suggest that Middlebury assets have been compromised.

More information about the vulnerability is available on the ITS Information Security web site’s ‘Threat Bulletin’ area: http://www.middlebury.edu/media/view/486102/original/middlebury_threat_bulletin_shellshock.pdf

If you have specific questions, please feel free to email infosec@middlebury.edu.

Banner and associated systems will be down for maintenance Sept 27-Sept 28

Categories: Midd Blogosphere

All Banner environments and associated system will be unavailable between the hours of 8pm ET Saturday September 27th and 12pm (noon) ET Sunday September 28th while these systems are undergoing maintenance.

Systems Impacted: All Banner environment including Internet Native Banner (INB) and Banner Web/Self-Service (SSB) plus all associated systems such as Hyperion EPM 11 Reporting, Nolij Document Management System, etc.

Schedule: 8pm ET Saturday September 27th through 12pm (noon) ET Sunday September 28th 2014

What is happening during this time?: Ellucian, the manufacturer of the Banner software and company currently hosting our Banner environments, will be relocating all of our hosted systems and associated infrastructure to a new data center.

We apologize for any impact this extended maintenance window has on your operations and activities.

System Maintenance Friday, Sept 26th

Categories: Midd Blogosphere

This Friday morning at 6:30am EST we will be performing emergency equipment replacement involving one of our border gateway routers. The expected impact to services is minimal as Middlebury has adequate redundancy between Internet bandwidth providers. Existing point-to-point VPN tunnels may see two brief outages up to a minute each while paths re-route during failover.

We appreciate your patience as we strive to keep our systems functioning optimally.

lynda.com Site Unavailable Sept 19 from 2:00-3:00 AM (EST)

Categories: Midd Blogosphere

lynda_logo 72x72For the night owls out there, please note that our lynda.com online learning resource will be unavailable from 2:00 – 3:00 AM Friday, September 19, while web server capacity improvements are implemented.    (What’s that you say?   You haven’t heard of lynda??  Visit go/lyndainfo to see what you’re missing.)