bit No need to be worried about vulnerabilities! :) http://www.theregister.co.uk/2016/04/28/time_for_a_patch_six_vulns_fixed_in_ntp_daemon/ Update: 05/29/16 http://www.securityweek.com/ntp-servers-exposed-long-distance-wireless-attacks Fear not! OpenNTPD fixed this in the latest version :) http://seclists.org/oss-sec/2016/q2/389 P.S Eric, OpenNTPD is almost ready to release version 6.0 https://github.com/openntpd-portable/openntpd-portable/commit/b50e6e7113c649eda0ad909892d761246c66f5ce