r1 - 2004-09-27 - 04:19:16 - SteveKosteckeYou are here: NTP >  Servers Web > PublicTimeServer000319
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-4.2.8p15 was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.

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.
  • IP addresses are subject to change; please use DNS

ServerStratum StratumOne
CountryCode US WI
Hostname ben.cs.wisc.edu
IP Address
UseDNS Yes
PoolMember No
ServerLocation Computer Science Department, University of Wisconsin-Madison
GeographicCoordinates 89:24:30W, 43:08:00N
ServerSynchronization NTP V4 primary (Odetics GPS), Sun/Sparc
ServiceArea US/any
AccessPolicy RestrictedAccess
AccessDetails One primary and one secondary per domain, by request.
NotificationMessage Yes
ServerContact David Thompson (ntp-admin@cs.wisc.edu)
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