Patrick Bervoets
2015-Feb-12 12:26 UTC
[CentOS] ntptrace ***Request timed out with stock C6 ntpd
Following the recent ntp posts I decided to check my setup with ntptrace.
localhost: stratum 3, offset -0.000020, synch distance 0.016330
81.95.117.62: timed out, nothing received
***Request timed out
service ntpd status
ntpd (pid 3018) is gestart...
grep server /etc/ntp.conf | grep -v "#"
server 0.centos.pool.ntp.org iburst
server 1.centos.pool.ntp.org iburst
server 2.centos.pool.ntp.org iburst
server 3.centos.pool.ntp.org iburst
ntpq> peer
remote refid st t when poll reach delay offset jitter
=============================================================================+85.234.199.227
193.190.230.65 2 u 135 1024 377 29.759 -0.218 48.373
*79.132.231.103 193.190.230.66 2 u 328 1024 377 41.639 1.487 12.891
+195.200.224.66 193.67.79.202 2 u 958 1024 377 13.179 1.036 87.857
+81.95.117.62 193.67.79.202 2 u 343 1024 377 23.321 -1.759 24.933
I've tested on 3 C6 hosts and everyone gives a ***Request timed out.
(everytime with an other host)
Is there something wrong with my setup or with my testing?
Thanks
Patrick
Peter Lawler
2015-Feb-13 03:20 UTC
[CentOS] ntptrace ***Request timed out with stock C6 ntpd
On 12/02/15 23:26, Patrick Bervoets wrote:> Following the recent ntp posts I decided to check my setup with ntptrace. > > localhost: stratum 3, offset -0.000020, synch distance 0.016330 > 81.95.117.62: timed out, nothing received > ***Request timed outam guessing here, but from the man page: For ntptrace to work properly, each of these servers must implement the NTP Control and Monitoring Protocol specified in RFC 1305 and enable NTP Mode 6 packets. --- Maybe that server doesn't implement those controls and/or doesn't have Mode 6 enabled. P.