ITS Service Status Report

Emergency Maintenance — Resolved

BlueCat patch for DNS and DHCP servers

Services Affected: In-building Networks

Start Time: 01/15/2022 11:00 pm

Maintenance Completed: 01/15/2022 11:25 pm

Issue Symptoms: Outage

Emergency update for all BlueCat servers
The web interface will be down for less than ten minutes. Admins will lose their connection and need to login again.
DNS services will be restarted with a few seconds unresponsive. Servers are redundant so there will be no outage to users.
DHCP service will not be affected.

Domain Name Service (DNS) is the service that converts internet names (like www.umich.edu) into network addresses (like 141.211.243.251).
Dynamic Host Configuration Protocol (DHCP) provides network configuration to computers that connect to the network, including their IP Address, subnet mask, network gateway, time server, DNS domain, etc.

Who is Impacted? BlueCat admins

Next Update: 1:00 AM

Technical Details

Service Type: Production

Server Name: bluecat.umnet.umich.edu, adonis* bdds-*

Comments:

11:25 PM - completed.

 

Groups Notified:

Report Additional Impacts

Contact the ITS Service Center for more information or to report additional impacts.