in /etc now
comes up with one hit, in ntp.conf:
# and
admin.curacao.bitfolk.com (nagios)
restrict 212.13.194.71
so I changed that to 85.119.80.238 and 85.119.80.244 per the customer
information page on the website and restarted ntp.
Looking, I should have added these two ages ago, but I suspect I am not
the only one who didn't...
Allowing nagios's IP addresses to query your ntp server is only
required if it's being monitored by BitFolk. So either it makes no
difference or else alerts start firing and you notice. :)
Some relevant links: