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List:       redhat-list
Subject:    Re: ntp help...
From:       MKlinke <mklinke () axsi ! com>
Date:       2003-05-14 20:49:33
[Download RAW message or body]

On Wednesday 14 May 2003 21:02, christopher j bottaro wrote:
> hello,
> i have a few computers on a lan at home all sharing a cable modem. 
> one of them is running ntpd:
>
> [root@criticalsection root]# ntpq -p
>      remote           refid      st t when poll reach   delay  
> offset  jitter
> =====================================================================
>========= +ns1.utexas.edu  time.ots.utexas  2 u  679 1024  377  
> 21.529    3.839   3.683 +ns2.utexas.edu  time.ots.utexas  2 u  146
> 1024  377   16.190    1.292  16.753 *ntp.tacc.utexas time.ots.utexas 
> 2 u  977 1024  377   13.407    1.487   5.725 -ntp3.tamu.edu  
> ntp1.tamu.edu    2 u  859 1024  377   69.875   20.982  14.265
> -fnbhs.com       time-C.timefreq  2 u 1023 1024  377  262.965  
> 42.194  40.099
>
> [root@criticalsection root]# cat /etc/ntp.conf
> restrict 127.0.0.1
> restrict 192.168.1.0 mask 255.255.255.0 notrust nomodify notrap
>
> server  ntp1.utexas.edu
> server  ntp2.utexas.edu
> server  ntp.cc.utexas.edu
> server  ntppub.tamu.edu
> server  ntp.fnbhs.com
>
> driftfile /etc/ntp/drift
> broadcastdelay  0.008
>
> authenticate no
>
> now my question is how do i get all my other computers to sync off
> that one? how do i have edit that shown npt.conf file to allow others
> to sync off it, and what should the new ntp.conf files look like on
> the other computers?
>
> thank you,
> -- christopher

I have a ntp server that serves both internal and external systems. 
These minimal ntp.conf files work for me.

Regards,  Mike Klinke

-------- ntp.conf.server -------------------
restrict <Internal_Network_IP(xxx.xxx.xxx.0)> mask 255.255.255.0 notrust 
nomodify notrap

restrict <External_Network_IP(yyy.yyy.yyy.0)> mask 255.255.255.0 notrust 
nomodify notrap

server  <Public_Timeserver_IP_Address/Name>

driftfile /etc/ntp/drift

broadcastdelay  0.008
--------------------------------------------


----------- ntp.conf.client ----------------
server	<Internal_NTP_Server_IP_Address>

driftfile /etc/ntp/drift

broadcastdelay  0.008
--------------------------------------------



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