OpenNTPd howto? [success]

B. Cook bcook at poughkeepsieschools.org
Tue Jul 1 19:19:25 UTC 2008


I did sync finally..

root at core [/usr/local/man]# 30 > /usr/local/sbin/ntpd -s -d -f /usr/ 
local/etc/ntpd.conf
listening on 10.20.0.16
listening on 10.20.0.29
ntp engine ready
reply from 209.51.161.238: offset 0.005419 delay 0.016668, next query 6s
reply from 209.51.161.238: offset 0.005236 delay 0.016233, next query 6s
reply from 209.51.161.238: offset 0.005288 delay 0.015782, next query 9s
peer 209.51.161.238 now valid
reply from 209.51.161.238: offset 0.005271 delay 0.016006, next query 9s
reply from 209.51.161.238: offset 0.005550 delay 0.015967, next query 7s
reply from 209.51.161.238: offset 0.005616 delay 0.016308, next query 7s
reply from 209.51.161.238: offset 0.005714 delay 0.015999, next query  
30s
reply from 209.51.161.238: offset 0.005995 delay 0.016138, next query  
32s
adjusting local clock by 0.005288s
reply from 209.51.161.238: offset 0.001272 delay 0.016006, next query  
301s
reply from 209.51.161.238: offset 0.004713 delay 0.016379, next query  
307s
reply from 209.51.161.238: offset 0.008287 delay 0.016782, next query  
307s
adjusting local clock by 0.005550s
clock is now synced


# ntpdate -d 10.20.0.16
  1 Jul 15:19:01 ntpdate[2017]: ntpdate 4.2.0-a Sun Feb 24 16:32:49  
UTC 2008 (1)
transmit(10.20.0.16)
receive(10.20.0.16)
transmit(10.20.0.16)
receive(10.20.0.16)
transmit(10.20.0.16)
receive(10.20.0.16)
transmit(10.20.0.16)
receive(10.20.0.16)
transmit(10.20.0.16)
server 10.20.0.16, port 123
stratum 2, precision -21, leap 00, trust 000
refid [10.20.0.16], delay 0.02599, dispersion 0.00000
transmitted 4, in filter 4
reference time:    cc15016a.d35167ff  Tue, Jul  1 2008 15:18:02.825
originate timestamp: cc1501a5.98b65fff  Tue, Jul  1 2008 15:19:01.596
transmit timestamp:  cc1501a5.98d9b8dd  Tue, Jul  1 2008 15:19:01.597
filter delay:  0.02605  0.02599  0.02599  0.02599
          0.00000  0.00000  0.00000  0.00000
filter offset: -0.00067 -0.00072 -0.00072 -0.00072
          0.000000 0.000000 0.000000 0.000000
delay 0.02599, dispersion 0.00000
offset -0.000727

  1 Jul 15:19:01 ntpdate[2017]: adjust time server 10.20.0.16 offset  
-0.000727 sec



On Jul 1, 2008, at 1:28 PM, Steve Bertrand wrote:

> B. Cook wrote:
>> Hello All,
>
> Hey,
>
>> root at core [/usr/local/etc]# 32 > ntpdate -b clock.nyc.he.net
>> 1 Jul 12:49:57 ntpdate[70917]: step time server 209.51.161.238  
>> offset 358.732506 sec
>> Why when it was running did it not update the clock on the server?
>
> My first guess, which is only a guess, is that your secure level is  
> too high for this to work. If your securelevel is set above zero,  
> then your clock can only be adjusted by a maximum of one second  
> (please correct me if this has changed since 4.x).
>
> Check the output of:
>
> sysctl -a kern.securelevel
>
>> Strange thing two:
>> From a different computer I can not get the time from the server  
>> running openntpd.
>> # ntpdate -b 10.20.0.16
>> 1 Jul 12:50:23 ntpdate[679]: no server suitable for synchronization  
>> found
>
> Have you confirmed that a clock server runs on that IP? Is the IP  
> reachable?
>
> If securelevel still has its place with affecting time changes, I'd  
> try 'breaking' that to see if the time will actually update. Note  
> that securelevel must be changed via a startup variable of some  
> sort, and a reboot is required.
>
> Then I would proceed to ensure that 10.20.0.16 is actually running a  
> timeserver that the network can reach.
>
> Steve

-- 
B. Cook
Network Analyst
Poughkeepsie City School District
Mobile: 845.264.5827 | Desk: 845.451.4791



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