Jonathan Hutchins wrote:
I had a system that, because I was relying on ntp, and because ntp was confirured correctly when I checked after setting it up, was six hours off after subsequent reboots. Gentoo had, in the absence of useful data from the DHCP server, overwritten the valid ntp config file with default garbage. (This is the default behavior for gentoo.) Caveat admin.
Nagios automagically sends me an email whenever NTP is wonky on one of my machines. I thought this happened to everyone.