4.2.8p18 Man Pages
- ntp-keygen: Ntp-keygen - generate public and private keys
- ntp.conf: NTP Configuration File User’s Manual
- ntp.conf-advanced: Configuration File Definition (Advanced)
- ntpd: Ntpd - Network Time Protocol (NTP) daemon
- ntpdc: Ntpdc - special NTP query program
- ntpdate: Ntpdate - set the date and time via NTP
- ntpdsim: Ntpdsim - Network Time Protocol (NTP) simulator
- ntpq: Ntpq - standard NTP query program
- ntptime: Ntptime - read and set kernel time variables
- ntptrace: Ntptrace - trace a chain of NTP servers back to the primary source
- ntp-wait: Ntp-wait - waits until ntpd is in synchronized state
- sntp: Sntp - Simple Network Time Protocol (SNTP) Client
- tickadj: Tickadj - set time-related kernel variables
4.2.8p18 Documentation
- Access Control Support: Access Control Support
- Access Control Commands: Access Control Commands and Options
- Association Management: Association Management
- Audio Drivers: Reference Clock Audio Drivers
- Authentication Support: Authentication Support
- Authentication Options: Authentication Commands and Options
- Autokey Authentication: Autokey Public-Key Authentication
- Bug Reporting: NTP Bug Reporting Procedures
- Build Options: NTP Build Options
- Building NTP Source: Building and Installing the Distribution
- Clock State Machine: Clock State Machine
- Clock Commands: Reference Clock Commands and Options
- Cluster Algorithm: Clock Cluster Algorithm
- Command Index: NTP Command Index
- Debugging: NTP Debugging Techniques
- Debugging Drivers: Debugging Reference Clock Drivers
- Discipline Algorithm: Clock Discipline Algorithm
- Discovery Schemes: Automatic Server Discovery Schemes
- Event Messages: Event Messages and Status Words
- External Discipline: External Clock Discipline and the Local Clock Driver
- Filter Algorithm: Clock Filter Algorithm
- Hints: Hints and Kinks
- Historical Notes: Historical Notes
- How NTP Works: Overview of How NTP Works
- How to Write a Driver: How to Write a Reference Clock Driver
- Huff-n’-Puff Filter: The Huff-n'-Puff Filter
- Install From Source: Basic Installation
- Interleaved Modes: NTP Interleaved Modes
- Kernel Model: Kernel Model for Precision Timekeeping
- Leap Second: Leap Second Processing
- Log Messages: Ntpd System Log Messages
- Misc. Options: Miscellaneous Commands and Options
- Mitigation Rules: Mitigation Rules and the prefer Keyword
- Monitoring Options: Monitoring Options
- NTP Simulator: Network Time Protocol Simulator
- Orphan Mode: NTP Orphan Mode
- PARSE Clocks: Making PARSE Clocks
- PARSE Formats: NTP PARSE clock data formats
- Performance Metrics: Performance Metrics
- Poll Process: NTP Poll Process
- PPS Signal: Pulse-Per-Second (PPS) Signal Interfacing
- PPSAPI Interface: PPSAPI Interface for Precision Time Signals
- Quick Start: NTP Quick Start
- Rate Management: Rate Management and the Kiss-o'-Death Packet
- Reference Clocks: Reference Clock Support
- Release Notes: NTP Version 4 Release Notes
- Select Algorithm: Clock Select Algorithm
- Server Commands: Server Commands and Options
Drivers
- Arbiter: Arbiter 1088A/B GPS Receiver
- Arcron: Arcron MSF Receiver
- Austron: Austron 2200A/2201A GPS Receivers
- Bancomm: Bancomm bc635VME Time and Frequency Processor
- Chrono-log: Chrono-log K-series WWVB receiver
- Conrad: Conrad parallel port radio clock
- Dumb Clock: Dumb Clock Driver
- Forum Graphic: Forum Graphic GPS Dating station
- Generic NMEA: Generic NMEA GPS Receiver
- Generic Reference: Generic Reference Driver
- GPSD-NG: GPSD-NG client driver
- Heath WWV/WWVH: Heath WWV/WWVH Receiver
- Hewlett Packard: Hewlett Packard 58503A GPS Receiver and HP Z3801A
- hopf GPS/DCF77: Hopf GPS/DCF77 6021/komp for Serial Line
- hopf PCI-Bus: Hopf PCI-Bus Receiver (6039 GPS/DCF77)
- IRIG Audio: IRIG Audio Decoder
- JJY Receivers: JJY Receivers Driver
- KSI/Odetics: KSI/Odetics TPRO/S IRIG Interface
- Local Clock: Undisciplined Local Clock
- Magnavox: Magnavox MX4200 GPS Receiver
- Motorola Interface: Motorola ONCORE - The Shared Memory Interface
- Motorola ONCORE: Motorola Oncore GPS Receiver
- MX4200 Format: MX4200 Receiver Data Format
- NeoClock4X: NeoClock4X Driver
- NIST/USNO/PTB: NIST/USNO/PTB Modem Time Services
- PPS Discipline: PPS Clock Discipline
- PSTI/Traconex: PSTI/Traconex 1020 WWV/WWVH Receiver
- PTB Format: PTB Modem Time Service
- PTB Modem: PTB Modem Time Service and other European Laboratories Time Services
- Radio CHU: Radio CHU Audio Demodulator/Decoder
- Radio WWV/H: Radio WWV/H Audio Demodulator/Decoder
- RIPE NCC: RIPE NCC interface for Trimble Palisade
- Rockwell: Rockwell Jupiter GPS Receiver
- Shared Memory: Shared Memory Driver
- Spectracom TSYNC: Spectracom TSYNC PCI
- Spectracom WWVB/GPS: Spectracom WWVB/GPS Receivers
- Trak 8820: Trak 8820 GPS Receiver
- Trimble: Trimble Palisade and Thunderbolt Receivers
- TrueTime: TrueTime GPS/GOES/OMEGA/WWV Receivers
- Ultralink Clock: Ultralink Clock
- USNO Modem: USNO Modem Time Service
- Zyfer: Zyfer GPStarplus Receiver
RFCs
- 8915: RFC 8915: Network Time Security for the Network Time Protocol
- 8633: RFC 8633: Network Time Protocol Best Current Practices
- 8573: RFC 8573: Message Authentication Code for the Network Time Protocol
- 7822: RFC 7822: Network Time Protocol Version 4 (NTPv4) Extension Fields
- 7821: RFC 7821: UDP Checksum Complement in the Network Time Protocol (NTP)
- 7384: RFC 7384: Security Requirements of Time Protocols in Packet Switched Networks
- 5908: RFC 5908: Network Time Protocol (NTP) Server Option for DHCPv6
- 5907: RFC 5907: Definitions of Managed Objects for Network Time Protocol Version 4
- 5906: RFC 5906: Network Time Protocol Version 4: Autokey Specification
- 5905: RFC 5905: Network Time Protocol Version 4: Protocol and Algorithms Specification
- 4330: RFC 4330: Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI
- 4075: RFC 4075: Simple Network Time Protocol (SNTP) Configuration Option for DHCPv6
- 3161: RFC 3161: Internet X.509 Public Key Infrastructure Time-Stamp Protocol (TSP)
- 2783: RFC 2783: Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0
- 2030: RFC 2030: Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI
- 1769: RFC 1769: Simple Network Time Protocol (SNTP)
- 1589: RFC 1589: A Kernel Model for Precision Timekeeping
- 1361: RFC 1361: Simple Network Time Protocol (SNTP)
- 1305: RFC 1305: Network Time Protocol (Version 3) Specification, Implementation and
- 1165: RFC 1165: Network Time Protocol (NTP) over the OSI Remote Operations Service
- 1129: RFC 1129: Internet Time Synchronization: the Network Time Protocol
- 1128: RFC 1128: Measured Performance of the Network Time Protocol in the Internet System
- 1119: RFC 1119: Network Time Protocol (Version 2) Specification and Implementation
- 1059: RFC 1059: Network Time Protocol (version 1) specification and implementation
- 1004: RFC 1004: Distributed-protocol authentication scheme
- 996: RFC 996: Statistics server
- 981: RFC 981: Experimental multiple-path routing algorithm
- 958: RFC 958: Network Time Protocol (NTP)
- 957: RFC 957: Experiments in network clock synchronization
- 956: RFC 956: Algorithms for synchronizing network clocks
- 891: RFC 891: DCN Local-Network Protocols
- 889: RFC 889: Internet Delay Experiments
- 778: RFC 778: DCNET Internet Clock Service
- IEN 173: IEN 173: Time Synchronization in DCNET Hosts
IETF Drafts
- Extended Information: Network Time Protocol Extended Information Extension Field
- Extension Fields: Network Time Protocol Version 4 (NTPv4) Extension Fields
- I-Do Extension: Network Time Protocol I-Do Extension Field
- Leap Smear REFID: Network Time Protocol Leap Smear REFID
- MAC/Last Extension: Network Time Protocol MAC/Last Extension Fields
- REFID Updates: Network Time Protocol REFID Updates
- Secure Network Time: Network Time Protocol: Secure Network Time
- REFID Extension: Network Time Protocol Suggested REFID Extension Field
- Key Exchange: Network Time Protocol: TCP Services: Key Exchange
- TCP Services: Network Time Protocol: TCP Services