r5 - 2017-06-03 - 19:23:29 - ShaneBishopYou are here: NTP >  Servers Web > PublicTimeServer000310
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.
  • The DNS name for gps1.otc.psu.edu changed to the current hostname; please use DNS
  • This hardware does not support rdate or daytime protocols; NTPv3 only

  • Server list entry maintainer:
ServerStratum StratumOne
CountryCode US PA
Hostname gps1.tns.its.psu.edu
IP Address
IPv6 Address 2610:8:7900:12:2a0:69ff:fe01:39e7
UseDNS Yes
PoolMember No
ServerLocation Penn State University, University Park, PA

GeographicCoordinates 40:47:58.1N, 77:51:44.8W (USGS 40077-G7-TF-024)
ServerSynchronization NTP V3 primary (GPS), TrueTime XL/DC NTP module
ServiceArea Internet, Internet2, 3ROX
AccessPolicy ClosedAccess
AccessDetails Closed access, except for stratum-2 servers providing synchronization to local networks of ten or more hosts; others by arrangement only.
NotificationMessage Yes



ServerContact John Balogh (JDB+NTP@psu.edu)
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