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r4 - 2014-03-13 - 04:21:18 - SteveKosteckeYou are here: NTP >  Servers Web > PublicTimeServer000286
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.
Notes:

Related Topics: TockUsnoNavyMil

ServerForm
ServerStratum StratumOne
CountryCode US DC
Hostname tick.usno.navy.mil
IP Address 192.5.41.40
IPv6 Address

UseDNS Yes
PoolMember No
ServerLocation U.S. Naval Observatory, Washington, DC
HostOrganization

GeographicCoordinates 38:55:14.01 77:03:58.03 (GPS WGS84)
ServerSynchronization NTP V4 primary (USNO Master Clock 1,2, H-maser), HP9000/A500
ServiceArea Eastern Time Zone, others by arrangement
AccessPolicy RestrictedAccess
AccessDetails Open only to MIL, GOV, other stratum 2's. Choose only one of tick/tock/ntp2.
NotificationMessage Yes
AutoKeyURL

SymmetricKeyType

SymmetricKeyURL

ServerContact Jeffrey Prillaman, US Naval Observatory (jeffrey.prillaman@usno.navy.mil)
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