Servers WebNTP 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.Notes:
ntp-4.2.8p15was 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.
- This address is load balanced with tick.usno.navy.mil and ntp2.usno.navy.mil.
- Server list entry maintainer:
- Set ALLOWTOPICCHANGE = USNOServerGroup
| ServerForm | |
|---|---|
| ServerStratum | StratumOne |
| CountryCode | US DC |
| Hostname | tock.usno.navy.mil |
| IP Address | 192.5.41.41 |
| IPv6 Address | |
| UseDNS | Yes |
| PoolMember | No |
| ServerLocation | U.S. Naval Observatory, Washington, DC |
| HostOrganization | |
| GeographicCoordinates | 38:55:14.01N 77:03:58.03W (GPS WGS84) |
| ServerSynchronization | NTP V4 primary (USNO Master Clock) |
| ServiceArea | Eastern Time Zone |
| AccessPolicy | RestrictedAccess |
| AccessDetails | Open access for stratum 2 servers. |
| NotificationMessage | No |
| AutoKeyURL | |
| SymmetricKeyType | |
| SymmetricKeyURL | |
| ServerContact | Jeffrey Prillaman, US Naval Observatory (jeffrey.prillaman@usno.navy.mil) |
 |
|
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