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.
Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.
Donations Wanted
The NTP Public Services Project relies on contributions from
OurDonors to support our operations. Please see
DonatingToTheProject for more information about making a donation to support the Project.
Hardware Contributions (components and complete systems)
The list below is quite outdated, and we really have better things to do than keep it up-to-date. While I think we'll be rewriting this page soon, who knows when that will happen; if you would like to offer equipment to us, please just let us know. And cash donations are even better.
- Remote Power Control
- Needed: Remote power controllers - rackmount: horizontal or vertical
- Function: For remotely rebooting our systems
- Location: ISC
- Suggested Items:
- Embedded System
- Needed: 2 Small embedded diskless systems each with 2 NICs, 256MB Compact Flashes, Power Supplies, and cases
- Use: Appliance application
- Suggested Items:
- Location: ISC
- NAS/NFS server
- Function: shared sources, build trees, home directories, backups
- Location: ISC
- Suggested Items:
- Desired Configuration:
- Mounting Style: 19" Rackmount only
- Storage: at least 1TB, prefer 4TB+
- Licenses: Full software licenses
- Support: Full support contract
- Refclocks
- Needed: Refclocks
- Function: Development and maintenance of refclock drivers.
- Location: ISC or individual developers
- IBM eServer p5, AIX
- Function: Build/test farm
- Location: ISC
- Desired Configuration:
- Mounting Style: 19" Rackmount only
- Processor: IBM Power 5
- RAM: 512MB (minimum), 1GB+ (preferred)
- Disk: Two (or more) 40GB (or larger) server-grade hot-plug disks
- Preferably including server-grade hardware RAID controller
- IBM eServer p5, Linux
- Function: Build/test farm
- Location: ISC
- Desired Configuration:
- Mounting Style: 19" Rackmount only
- Processor: IBM Power 5
- RAM: 512MB (minimum), 1GB+ (preferred)
- Disk: Two (or more) 40GB (or larger) server-grade hot-plug disks
- Preferably including server-grade hardware RAID controller
- Apple Xserve, MacOS X
- Function: Build/test farm
- Location: ISC
- Desired Configuration:
- Mounting Style: 19" Rackmount only
- Processor: PowerPC G4 (minimum) or G5 (preferred)
- RAM: 512MB (minimum), 1GB+ (preferred)
- Disk: Two (or more) 40GB (or larger) server-grade hot-plug disks
- Preferably including server-grade hardware RAID controller
Financial Contributions
Here is a partial list of what we would spend money on:
- Staff
- Sending people to NTP-related meetings (IETF, etc.)
- Software development
- Project maintenance and development
- Equipment and facilities support

Please see
DonatingToTheProject for information about financial contributions to support the Project.