April 24, 2018 by Mark Kraitchman cronus pne of the departmental DNS, NIS and time servers will be down for a needed reboot to activate changes delivered by some RHEL patches. Though the scheduled downtime is 6:45am to 7:00am, we expect actual downtime to be less. UPDATE [2018-04-24 06:46:31 | mark kraitchman] cronus is back up. Maintenance has been completed. Resolved as of 2018-04-24 06:46:00