Forward DNS scheduled maintenance - 31-Jul-2024

[porcupine]

Hi Folks,

Please be advised of the following maintenance window:

Maintenance Window: Wednesday July 31 2024, 12:01am - 4:00am Eastern time
Facility: N/A
Affected Device(s): www.prioritycolo.com, ns1.prioritycolo.com [204.11.48.2], ntp1.prioritycolo.com [204.11.48.3]
Affected Services: Forward resolving DNS, Main website, NTP1.prioritycolo.com, Support helpdesk
Service Impacting: Yes - These services will experience several brief periods of unavailability during the maintenance window in question.

Details: We will be replacing the physical server which hosts the aforementioned services, with newer hardware, running a newer operating system.

The replacement server has already been deployed, configured, etc., but the services in question must be stopped during a maintenance window to allow for various contents to be synchronized between the old and new server, before the new server takes over hosting of these services.

While these services are offline, impact should be minimal, since we deploy both DNS, and NTP with redundant servers in place, and anyone using our forward resolving DNS, and/or NTP servers should already be using the redundant pair to the respective system [204.11.48.2 & 204.15.192.2 for DNS, and 204.11.48.3 & 204.15.192.3 for NTP].

Please note the DNS in question does not host any customer domains, and is used for forward resolving only. The impact of this maintenance will likely be sluggish DNS requests during the maintenance, as customer servers wait for the primary DNS to timeout (~3s) before sending a duplicate request over to the secondary DNS server.