I will be rebooting and taking machines down for imaging tonight shortly after midnight.  I should be finished by approximately 2AM.

This is necessary to install kernel upgrades that fix a possible privilege escalation exploit in the kernel as well as to image the machines after adding fail2ban so that if a restoration is necessary at some point, that will get included in the restoration.

In short, these outages will enable us to make some improvements in site security as well as to backup some recently put in place.