r6 - 2016-11-29 - 07:54:46 - MattNordhoffYou are here: NTP >  Servers Web > PublicTimeServer000943
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-4.2.8p11 was released on 27 February 2018. It addresses 2 low-/medium-, 1 informational-/medium-, and 2 low-severity security issues in ntpd, 1 medium-severity security issue in ntpq, and provides over 65 non-security bugfixes and other improvements over 4.2.8p10.

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.
  • Hostname (IPv4-only): ipv4.ntp3.mattnordhoff.com
  • Hostname (IPv6-only): ipv6.ntp3.mattnordhoff.com
  • Hostname (Linode Atlanta private network): ntp3.atl0.mattnordhoff.com
  • Hostname (Linode Atlanta private network, IPv4-only): ipv4.ntp3.atl0.mattnordhoff.com (
  • Hostname (Linode Atlanta private network, IPv6-only): ipv6.ntp3.atl0.mattnordhoff.com
  • NTP Pool statistics: IPv4, IPv6

  • Server list entry maintainer:
ServerStratum StratumTwo
CountryCode US GA
Hostname ntp3.mattnordhoff.com
IP Address
IPv6 Address 2600:3c02::13:220
UseDNS Yes
PoolMember Yes
ServerLocation Atlanta, GA, US (ATL)
HostOrganization Hosted at Linode at Zayo (formerly AtlantaNAP )

ServerSynchronization Several stratum 1 and 2 servers. Linux. Current NTP.
ServiceArea Everywhere
AccessPolicy OpenAccess
AccessDetails Abusive peers may be mocked on Twitter and/or blocked.
NotificationMessage No



ServerContact Matt Nordhoff (mnordhoff@mattnordhoff.com)
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