r7 - 2017-06-07 - 16:01:05 - ShaneBishopYou are here: NTP >  Servers Web > PublicTimeServer000144
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-4.2.8p10 was released on 21 March 2017. It addresses 6 medium- and 5 low-severity security issues, 4 informational security topics, 15 bugfixes, and contains other improvements over 4.2.8p9.

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.
  • alias darkcity.cerias.purdue.edu
  • This host does not support "daytime" -- only UDP-based NTP

Related Topics: TockCeriasPurdueEdu, HorologeCeriasPurdueEdu, TackCeriasPurdueEdu

ServerStratum StratumOne
CountryCode US IN
Hostname tick.cerias.purdue.edu
IP Address
IPv6 Address

UseDNS Yes
PoolMember Yes
ServerLocation CERIAS, Purdue University, West Lafayette, IN

GeographicCoordinates 40:25:33.2N, 86:54:54.7W (GPS)
ServerSynchronization NTP V3/V4 primary (GPS), Symmetricom TymServe 2100L
ServiceArea Internet2, CIC and midwest US
AccessPolicy RestrictedAccess
AccessDetails Open access to significant stratum 2 servers in the service areas. Please see our ntp WWW page before using this service.
NotificationMessage Yes
AutoKey No



ServerContact Gene Spafford (ntp-request@cerias.purdue.edu)
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