*What is happening?*

On Sunday, July 5, 2020, from 11:15 p.m. - 11:50 p.m., US:IT Staff will be
performing a non-disruptive upgrade of the
application load balancer environment supporting multiple enterprise
services.

The major enterprise web services utilizing the enterprise
services load balancer are:

   - UMS Single Sign-On
   - MaineStreet
   - MyCampus Portal

*Due to the redundancy in the load balancer environment, no service outages
are expected during this maintenance.*


*Why is this work necessary?*

The vendor has released two critical security advisories for our load
balancer systems and recommends that a patch be "immediately applied" to
mitigate any risk of misuse.


*What happens if this work is unsuccessful?*

If any service-disrupting issues occur during this maintenance process, we
will return to the configuration in place before the maintenance,  and work
with the vendor to diagnose and resolve the issue.

If there are any questions or concerns related to this non-disruptive
maintenance, please feel free to contact me.

Steve.


-- 
Steven Premeau, Director of Enterprise Systems Architecture & Administration
University Services: Information Technology
University of Maine System | (207) 581-5836 (desk) | (207) 944-9391 (mobile)