[ntp:questions] 'restrict' line in ntp.conf

derek.flake at bell.ca derek.flake at bell.ca
Fri Jul 15 20:04:32 UTC 2005


Hello,

 

I've looked through a lot of documentation but I haven't been able to
find a solid explanation of the 'restrict' line seen in many sample
ntp.conf files.  I'm running NTP v4 on Windows 2003.

 

Here is an example of what I'm talking about, but this section does not
offer a clear enough explanation.

"Address-and-Mask Restrictions"

http://www.eecis.udel.edu/~mills/ntp/html/notes.html

 

What is this line used for?  Can you give me a better explanation of
"nomodify" and other such commands?

 

I need to set up hierarchical NTP so that a Windows 2003 server syncs to
a GPS stratum 1 clock, and a client syncs to the Windows 2003 server at
a stratum 3 level.  It seems that simply placing "server x.x.x.x" in
each consecutive ntp.conf file creates a conflict of some sort, and the
offsets are inconsistent (from 5ms to 900ms or more). 

 

Thanks!

 

Derek Flake

Video Networks

(613) 785-7099

derek.flake at bell.ca

 




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