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NAME

ntptrace

 - trace a chain of NTP servers back to the primary source

 

SYNOPSIS

DESCRIPTION

Here is an example of the output from :

% ntptrace
localhost: stratum 4, offset 0.0019529, synch distance 0.144135
server2ozo.com: stratum 2, offset 0.0124263, synch distance 0.115784
usndh.edu: stratum 1, offset 0.0019298, synch distance 0.011993, refid 'WWVB'

On each line, the fields are (left to right): the host name, the host stratum, the time offset between that host and the local host (as measured by ; this is why it is not always zero for ``localhost )'' the host synchronization distance, and (only for stratum-1 servers) the reference clock ID. All times are given in seconds. Note that the stratum is the server hop count to the primary source, while the synchronization distance is the estimated error relative to the primary source. These terms are precisely defined in RFC 1305.

The following options are available:

-d

Turn on some debugging output.

-n

Turn off the printing of host names; instead, host IP addresses are given. This may be necessary if a nameserver is down.

-r retries

Set the number of retransmission attempts for each host; the default is 5.

-t timeout

Set the retransmission timeout (in seconds); the default is 2.

-v

Print verbose information about the NTP servers.

SEE ALSO

D L Mills Network Time Protocol (Version 3) RFC1305

BUGS

Index

NAME

SYNOPSIS

DESCRIPTION

SEE ALSO

BUGS

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