27.12.2013 11.34, Markku Miettinen kirjoitti:
I've been browsing around for a couple of days and found several people
complaining about the same thing before, but there hasn't been any
single reason for this error message:
--clip--
Invalid stratum response from XXX (Your server is in stratum ). Is your
server configured properly? Is public access allowed? If you just
restarted your ntpd, then it might still be stabilizing the timesources
- try again in 10-20 minutes.
--clap--
As far as I can tell the server looks it's responding just fine with
both IPv4 and IPv6, at least to this site:
http://keetweej.vanheusden.com/query_ntp.php Both IP versions are using
the same config and I've used it before along with very same firewall
config that I now enabled again.
Only thing I can imagine is that for some reason the IPv6 monitoring
doesn't work properly for whatever reason. Is any of you able to prove
me wrong? I'm more than happy to fix anything in my end.
And for additional information, server is located in France and feel
free to probe it at ntp.surfa.name.
I'm still having the same problem with villisika-v6.miuku.net, which
appears to be hosted next door to your server at Gandi. I was kind of
hoping that this issue would get resolved one way or another at some
point without me getting involved in diagnosing the problem, but
unfortunately it seems the problem is still there.
I can query my server successfully from other IPv6-enabled hosts, but
not from my Linode virtual machine. The routing is fine, but apparently
there's some filtering going on somewhere.
Here's some diagnostics output from my Linode virtual machine:
$ traceroute6 villisika-v6.miuku.net -q1 -A
traceroute to villisika-v6.miuku.net
(2001:4b98:dc0:41:216:3eff:fe69:46e3), 30 hops max, 80 byte packets
1 2600:3c01::8678:acff:fe0d:79c1 (2600:3c01::8678:acff:fe0d:79c1)
[AS8001] 0.689 ms
2 10gigabitethernet8-2.core3.fmt2.he.net (2001:470:1:3b8::1) [AS6939]
0.612 ms
3 10ge1-3.core1.fmt2.he.net (2001:470:0:23b::2) [AS6939] 5.059 ms
4 10ge1-1.core1.sjc2.he.net (2001:470:0:31::2) [AS6939] 5.725 ms
5 10ge3-3.core1.den1.he.net (2001:470:0:1b4::2) [AS6939] 28.045 ms
6 10ge4-3.core1.chi1.he.net (2001:470:0:1af::1) [AS6939] 56.196 ms
7 10ge15-7.core1.ash1.he.net (2001:470:0:286::2) [AS6939] 72.312 ms
8 vcore1-dc1.gandi.net (2001:504:0:2:0:2:9169:1) [*] 71.473 ms
9 xe0-0-1-1-core1-lux-ip6.lux.gandi.net (2001:4b98:1f::cdba:1)
[AS29169] 158.076 ms
10 xe0-0-1-0-core1-lux-ip6.lux.gandi.net (2001:4b98:1f::c2b1:2)
[AS29169] 171.098 ms
11 p252-dist1-d-ip6.paris.gandi.net (2001:4b98:1f::c2d1:242) [AS29169]
172.200 ms
12 villisika.miuku.net (2001:4b98:dc0:41:216:3eff:fe69:46e3) [AS29169]
172.621 ms
$ ping6 villisika-v6.miuku.net -c3
PING villisika-v6.miuku.net(villisika.miuku.net) 56 data bytes
64 bytes from villisika.miuku.net: icmp_seq=1 ttl=51 time=171 ms
64 bytes from villisika.miuku.net: icmp_seq=2 ttl=51 time=172 ms
64 bytes from villisika.miuku.net: icmp_seq=3 ttl=51 time=172 ms
--- villisika-v6.miuku.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2176ms
rtt min/avg/max/mdev = 171.622/172.058/172.420/0.581 ms
$ /usr/sbin/ntpdate -q villisika.miuku.net
server 2001:4b98:dc0:41:216:3eff:fe69:46e3, stratum 0, offset 0.000000,
delay 0.00000
server 92.243.6.5, stratum 3, offset 0.003982, delay 0.19356
5 Apr 08:54:13 ntpdate[29062]: adjust time server 92.243.6.5 offset
0.003982 sec
villisika-v6.miuku.net (2001:4b98:dc0:41:216:3eff:fe69:46e3) ended up
getting removed from the pool at some point, when the monitoring was
unable to reach the server for a few months.
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