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.

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Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.

• rbl-plus.mail-abuse.org
• blackholes.mail-abuse.org
• zen.spamhaus.org
• cbl.abuseat.org
• list.dsbl.org
• dynablock.njabl.org
• dnsbl.njabl.org
• relays.mail-abuse.org
• nonconfirm.mail-abuse.org
• dnsbl-1.uceprotect.net

Please contact postmaster@ntp.org if you have any questions about our Black Lists. In addition, if you have any suggestions for black lists that are not shown above, please let us know.

If you are unable to contact postmaster@ntp.org from your current address or system, please feel free to contact us from another address on another system, and we'll do everything we can to help you out.

Settings:

Set ALLOWTOPICCHANGE = NtpPublicServicesProjectStaffGroup