Hi,
I have following ntpd.conf file on an OpenBSD machine:
OpenBSD 5.7-current (GENERIC) #839: Mon Mar 30 14:21:47 MDT 2015
dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC
# /etc/ntpd.conf
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server 3.pool.ntp.org
constraints from www.google.com
I've noticed that ntpd(8) often ends up with all peers in 'peer not valid'
state, never syncing the time. I've enabled debug logging and this is
what I see in the logs:
Mar 31 00:29:38 openbsd57 ntpd[12097]: ntp engine ready
Mar 31 00:29:39 openbsd57 ntpd[12097]: constraint request to
2a00:1450:400b:800::2004
Mar 31 00:29:39 openbsd57 ntpd[12097]: constraint request to 216.58.211.132
Mar 31 00:29:39 openbsd57 ntpd[30212]: tls failed: 2a00:1450:400b:800::2004:
connect
Mar 31 00:29:39 openbsd57 ntpd[12097]: no constraint reply from
2a00:1450:400b:800::2004 received in time, next query 900s
Mar 31 00:34:37 openbsd57 ntpd[12097]: 0 out of 4 peers valid
Mar 31 00:34:37 openbsd57 ntpd[12097]: bad peer 0.pool.ntp.org (54.194.18.100)
Mar 31 00:34:37 openbsd57 ntpd[12097]: bad peer 1.pool.ntp.org (149.157.192.5)
Mar 31 00:34:37 openbsd57 ntpd[12097]: bad peer 2.pool.ntp.org (193.1.219.116)
Mar 31 00:34:37 openbsd57 ntpd[12097]: bad peer 3.pool.ntp.org (85.91.1.164)
Mar 31 00:44:39 openbsd57 ntpd[12097]: constraint request to
2a00:1450:400b:800::2004
Mar 31 00:44:39 openbsd57 ntpd[12097]: constraint request to 216.58.211.132
Mar 31 00:44:39 openbsd57 ntpd[1720]: tls failed: 2a00:1450:400b:800::2004:
connect
Mar 31 00:44:39 openbsd57 ntpd[12097]: no constraint reply from
2a00:1450:400b:800::2004 received in time, next query 900s
Mar 31 00:59:39 openbsd57 ntpd[12097]: constraint request to
2a00:1450:400b:800::2004
Mar 31 00:59:39 openbsd57 ntpd[12097]: constraint request to 216.58.211.132
Mar 31 00:59:39 openbsd57 ntpd[13994]: tls failed: 2a00:1450:400b:800::2004:
connect
Mar 31 00:59:39 openbsd57 ntpd[12097]: no constraint reply from
2a00:1450:400b:800::2004 received in time, next query 900s
That box doesn't have IPv6 configured:
# ifconfig
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 32768
priority: 0
groups: lo
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet6 ::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 52:54:00:12:34:72
priority: 0
groups: egress
media: Ethernet autoselect
status: active
inet 172.16.0.52 netmask 0xffffff00 broadcast 172.16.0.255
enc0: flags=0<>
priority: 0
groups: enc
status: active
# nc -v 2a00:1450:400b:800::2004 443
nc: connect to 2a00:1450:400b:800::2004 port 443 (tcp) failed: No route to host
--
best regards
q#
