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- 1. NTP Support Web
- 2. Proxies, Tunnels, and VPNs
- 3. Quick Start Guides & Hints
- 3.1. Getting Started With NTP
- 3.1.1. What NTP is and what it does
- 3.1.2. The names of the programs: Is it
ntpdorxntpd? - 3.1.3. Pick your servers
- 3.1.4. "Manually" set the clock correctly just once
- 3.1.5. Set the clock correctly on every boot up
- 3.1.6. Keep the clock in sync permanently and continuously.
- 3.1.7. What about stratum 1, 2, 3 and all that?
- 3.1.8. Check your work.
- 3.1.9. Running NTP on many machines in a network.
- 3.1.10. Further resources
- 3.2. NTP 4.x for Windows NT
- 3.1. Getting Started With NTP
- 4. Installing NTP
- 5. Designing Your NTP Network
- 5.1. NTP Access Policy
- 5.2. Choosing Reference Clocks
- 5.3. Selecting Offsite NTP Servers
- 5.4. Place your reference clocks
- 5.5. Your core NTP server machines
- 5.6. Distributing time from your routers
- 5.7. Distributing time to your machines
- 6. Configuring NTP
- 6.1. Configuring Refclocks
- 6.1.1. Configuring ATOM (PPS) Refclocks
- 6.1.2. Configuring Bancomm Refclocks
- 6.1.3. Installing an Endrun Pręcis CT CDMA based refclock.
- 6.1.4. Configuring Garmin Refclocks
- 6.1.5. Configuring Hopf Refclocks
- 6.1.6. Configuring HP Z3801A Refclocks
- 6.1.7. Configuring Irig Refclocks
- 6.1.8. Configuring Jupiter Refclock with linux
- 6.1.9. Configuring Local Refclocks
- 6.1.10. Configuring Modem Refclocks
- 6.1.11. Configuring Motorola ONCORE Refclocks
- 6.1.12. Configuring NMEA Refclocks
- 6.1.13. Configuring Parse Refclocks
- 6.1.14. Configuring PPS With PARSE Refclocks
- 6.1.15. Configuring PST Traconex Refclocks
- 6.1.16. Configuring Trimble Palisade/Acutime Refclocks
- 6.1.17. Configuring TrueTime Refclocks
- 6.1.18. Configuring u-blox Antaris Refclock
- 6.1.19. Configuring WWV Refclocks
- 6.1.20. Configuring WWVB Refclocks
- 6.2. Orphan mode
- 6.3. Configuring Multicast Servers
- 6.4. Configuring Multicast Clients
- 6.5. ntpd access restrictions
- 6.6. Adding NTP Server Variables
- 6.7. Configuring Autokey
- 6.8. Locking ntpd in memory
- 6.9. Simple Client Configuration
- 6.10. Important Notes
- 6.11. DHCP Auto-configuration
- 6.12. How dynamic IP addresses affect ntpd
- 6.13. Using the NIST Leap Second File
- 6.1. Configuring Refclocks
- 7. Starting NTP
- 8. Monitoring and Controlling NTP
- 9. Troubleshooting NTP
- 9.1. Known Hardware Issues
- 9.1.1. APIC and ACPI
- 9.1.2. Variable Speed Processors
- 9.1.3. Dell Inspiron 8100
- 9.1.4. Sun Fire V100, Netra X1, etc.
- 9.1.5. Disable your FIFO for lower jitter with serially-attached refclocks
- 9.1.6. Mac Mini (and other machines having poor
TICKsettings) - 9.1.7. nForce2 motherboards: HAL issues and FSB Spread Spectrum
- 9.2. Known Operating System Issues
- 9.2.1. Lost Interrupts
- 9.2.2. Xen, VMware, and Other Virtual Machine Implementations
- 9.2.3. Windows and Sun's Java Virtual Machine
- 9.2.4. Linux
- 9.2.4.1. Kernel 2.4 (and Earlier)
- 9.2.4.2. Kernel 2.6
- 9.2.4.2.1. Using a Local Refclock
- 9.2.4.2.2. Without a Local Refclock
- 9.2.4.2.3. Lost ticks causing clock instability
- 9.2.4.2.4. A problem with the Reiser file system
- 9.2.4.2.5. Running ntpd without root privileges
- 9.2.4.2.6. SELinux
- 9.2.4.2.7. Using udev
- 9.2.4.2.8. Kernel 2.6 Mis-Detecting CPU TSC Frequency
- 9.2.4.3. AppArmor causing "permission denied" errors
- 9.2.5. Mac OS X
- 9.2.6. Sun
- 9.3. Daylight Saving Time
- 9.4. Checking
ntpd's status - 9.5. On-line Troubleshooting Utilities
- 9.6. Check the
syslogoutput - 9.7. Problems with RESTRICT lines
- 9.8. Check the NTP port
- 9.9. ntp.conf and dhcp
- 9.10. synchronizing ntp with a server running w32time
- 9.1. Known Hardware Issues
- 10. Testing NTP's Behavior
- 11. Kernel configuration for NTP
- 12. Development Notes
- 13. Other Implementations Of NTP
- 14. Refclock Users
- 14.1. ATOM (PPS) Refclock Users
- 14.2. Bancomm Refclock Users
- 14.3. Users of the "Dumb" Refclock
- 14.4. Endrun Praecis Refclock Users
- 14.5. Garmin Refclock Users
- 14.6. HOPF Refclock Users
- 14.7. HP Z3801A Refclock Users
- 14.8. Irig Refclock Users
- 14.9. Jupiter Refclock Users
- 14.10. Modem Refclock Users
- 14.11. Motorola Oncore Refclock Users
- 14.12. NMEA Refclock Users
- 14.13. Parse Refclock Users
- 14.14. PST/Traconex Refclock Users
- 14.15. Trimble Palisade Acutime Refclock Users
- 14.16. TrueTime Refclock Users
- 14.17. u-blox Antaris Refclock Users
- 14.18. WWV Refclock Users
- 14.19. WWVB Refclock Users
- 15. Time Scales
- 16. NTP-related definitions
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Notes: - Topics must be added to WebOrder to be listed on this TableOfContents
- Support Web
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Quick Start
- Installation
- Configuration
- Operation
- Troubleshooting
- FAQ?
- Background?
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Index
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