r1 - 2004-09-23 - 14:10:29 - SteveKosteckeYou are here: NTP >  Servers Web > PublicTimeServer000073
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.
  • Note: ntp.cs.tcd.ie, ntp.maths.tcd.ie and ntp.tcd.ie peer together over local area net. It is normally sufficient just to pick one machine to peer with.

ServerStratum StratumTwo
CountryCode IE
Hostname ntp.maths.tcd.ie
IP Address

UseDNS Yes
PoolMember No
ServerLocation School of Mathematics, Trinity College, Dublin, Ireland.

ServerSynchronization NTPV4 secondary (stratum 2), Intel, FreeBSD 2.2
ServiceArea Ireland, UK
AccessPolicy OpenAccess

NotificationMessage Yes
ServerContact time@maths.tcd.ie
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