What is delay in NTPQ?
0. I assume you use ntpq , which gives delay in milliseconds. 0.170 in the delay column of ntpq -p means a delay of 0.170ms, not 0.170 seconds. 0.170ms is a reasonable delay over a switched ethernet.
How do I stop Ntpdate?
Disable the NTP service
- Stop the NTP service using one of the following commands depending on the Operating System your server is running. Debian/Ubuntu: /etc/init.d/ntpd stop.
- Disable the NTP service using one of the following commands depending on the Operating System your server is running.
What is root delay NTP?
The root delay is the round-trip packet delay from a client to a stratum 1 server. One factor is the error introduced by a client due to the inaccuracy of its clock frequency. Using NTP the higher stratum can set its clock to the lower stratum server, but if its clock frequency is off, then an error is introduced.
What is the purpose of the ntpd service?
This service executes the Network Time Protocol (NTP) daemon ntpd. The purpose is to synchronize the time of the local computer to a NTP server or other reference time source such as a radio or satellite receiver or modem.
When do you step the time in ntpd?
Normally, ntpd steps the time if the time offset exceeds the step threshold, which is 128 ms by default, and otherwise slews the time. This option forces the initial offset correction to be stepped, so the highest time accuracy can be achieved quickly.
Is the ntpd daemon always in continuous mode?
The ntpd program normally operates continuously while adjusting the system time and frequency, but in some cases this might not be practical. With the -q option ntpd operates as in continuous mode, but exits just after setting the clock for the first time. Most applications will probably want to specify the iburst option with the server command.
Why is the clock set backwards in ntpd?
Sometimes, in particular when ntpd is first started, the error might exceed 128 ms. This may on occasion cause the clock to be set backwards if the local clock time is more than 128 s in the future relative to the server. In some applications, this behavior may be unacceptable.