r4 - 2017-01-26 - 11:29:50 - HiDembyYou are here: NTP >  Servers Web > PublicTimeServer000154
NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.

ntp-4.2.8p11 was released on 27 February 2018. It addresses 2 low-/medium-, 1 informational-/medium-, and 2 low-severity security issues in ntpd, 1 medium-severity security issue in ntpq, and provides over 65 non-security bugfixes and other improvements over 4.2.8p10.

Please see the NTP Security Notice for vulnerability and mitigation details.

Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.
  • The default restriction on this host is "noserve". Hosts outside the service area must make prior arrangements to receive time service.

  • Server list entry maintainer: (set it to your WikiName)
ServerStratum StratumTwo
CountryCode US NC
Hostname clock1.unc.edu
IP Address
IPv6 Address

UseDNS Yes
PoolMember No
ServerLocation University of North Carolina-Chapel Hill, Chapel Hill, NC
HostOrganization UNC ITS - Networking
GeographicCoordinates 35:54N, 79:03W
ServerSynchronization NTP secondary (stratum 2), Sun4/SunOS/xntpd (V3)
ServiceArea CONCERT region
AccessPolicy OpenAccess
AccessDetails CONCERT region, others by prior arrangement
NotificationMessage No



ServerContact Timekeeper (timekeeper@clock1.unc.edu)
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