r5 - 2019-12-10 - 20:19:16 - GormJSiigerYou are here: NTP >  Servers Web > PublicTimeServer000691
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.

  • Server list entry maintainer:
ServerStratum StratumOne
CountryCode DK
Hostname h01.s1.ntp.sonnit.dk
IP Address
IPv6 Address

UseDNS Yes
PoolMember No
ServerLocation Sonnerup, Denmark
HostOrganization SonnIT / SonnMedia
GeographicCoordinates 55:22:64:51N, 12:05:73:09E
ServerSynchronization NTP V4 GPS+PPS timesource and processed by Ublox MAX-M8Q
ServiceArea Denmark/Europe
AccessPolicy RestrictedAccess
AccessDetails Open access to servers
NotificationMessage Yes
AutoKey No



ServerContact Gorm J. Siiger (gjs at sonnit dk)
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