r43 - 2022-04-12 - 19:14:12 - MattNordhoffYou are here: NTP >  Servers Web > PublicTimeServer000609
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.
  • IPv4-only hostname: ipv4.tick.mattnordhoff.com
  • IPv6-only hostname: ipv6.tick.mattnordhoff.com
  • Linode Dallas private network hostname: private.tick.mattnordhoff.com (
  • NTP Pool statistics: IPv4, IPv6

  • Server list entry maintainer:
ServerStratum StratumTwo
CountryCode US TX
Hostname tick.mattnordhoff.com
IP Address
IPv6 Address 2600:3c00:e000:256::123:0
UseDNS Yes
PoolMember Yes
ServerLocation Dallas, TX, US (DFW)
HostOrganization Linode Dallas (US-Central)

ServerSynchronization Several stratum 1 and 2 servers. Linux. Current NTP.
ServiceArea Everywhere
AccessPolicy OpenAccess

NotificationMessage No
AutoKey No



ServerContact Matt Nordhoff (m.support.ntp.org@mn0.us)
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