Date: Tue, 09 Mar 2010 09:07:53 +0100 From: Dominic Fandrey <kamikaze@bsdforen.de> To: freebsd-stable@freebsd.org Subject: ntpd does not re-query servers, when a new interface appears Message-ID: <4B9601D9.5030101@bsdforen.de>
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ntpd tracks interface updates, however it does not requery
servers, when they occur. This was less than an hour ago,
at my university, the notebook boots and is not connected
to anything:
9 Mar 08:07:17 ntpd[1510]: logging to file /var/log/ntpd
9 Mar 08:07:17 ntpd[1510]: precision = 2.234 usec
9 Mar 08:07:17 ntpd[1510]: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled
9 Mar 08:07:17 ntpd[1510]: Listening on interface #1 wildcard, ::#123 Disabled
9 Mar 08:07:17 ntpd[1510]: Listening on interface #2 bge0, 192.168.1.12#123 Enabled
9 Mar 08:07:17 ntpd[1510]: Listening on interface #3 lo0, fe80::1#123 Enabled
9 Mar 08:07:17 ntpd[1510]: Listening on interface #4 lo0, ::1#123 Enabled
9 Mar 08:07:17 ntpd[1510]: Listening on interface #5 lo0, 127.0.0.1#123 Enabled
9 Mar 08:07:17 ntpd[1510]: Listening on routing socket on fd #26 for interface updates
9 Mar 08:07:17 ntpd[1510]: kernel time sync status 2040
9 Mar 08:07:17 ntpd[1510]: frequency initialized 3.155 PPM from /var/db/ntpd.drift
9 Mar 08:07:20 ntpd[1542]: host name not found: 0.de.pool.ntp.org
9 Mar 08:07:20 ntpd[1542]: couldn't resolve `0.de.pool.ntp.org', giving up on it
9 Mar 08:07:20 ntpd[1542]: host name not found: 1.de.pool.ntp.org
9 Mar 08:07:20 ntpd[1542]: couldn't resolve `1.de.pool.ntp.org', giving up on it
9 Mar 08:07:20 ntpd[1542]: host name not found: 2.de.pool.ntp.org
9 Mar 08:07:20 ntpd[1542]: couldn't resolve `2.de.pool.ntp.org', giving up on it
9 Mar 08:07:20 ntpd[1542]: host name not found: ntp1.rz.uni-karlsruhe.de
9 Mar 08:07:20 ntpd[1542]: couldn't resolve `ntp1.rz.uni-karlsruhe.de', giving up on it
9 Mar 08:07:20 ntpd[1542]: host name not found: ntp1.rz.uni-karlsruhe.de
9 Mar 08:07:20 ntpd[1542]: couldn't resolve `ntp1.rz.uni-karlsruhe.de', giving up on it
9 Mar 08:07:20 ntpd[1542]: host name not found: ntp3.rz.uni-karlsruhe.de
9 Mar 08:07:20 ntpd[1542]: couldn't resolve `ntp3.rz.uni-karlsruhe.de', giving up on it
9 Mar 08:07:20 ntpd[1542]: host name not found: ntp4.rz.uni-karlsruhe.de
9 Mar 08:07:20 ntpd[1542]: couldn't resolve `ntp4.rz.uni-karlsruhe.de', giving up on it
So ntpd has given up on all the servers listed in the ntp.conf file.
I then proceed to connect to the wireless network and proceed to log
into two VPNs:
9 Mar 08:08:58 ntpd[1510]: Listening on interface #6 wlan0, 192.168.75.58#123 Enabled
9 Mar 08:09:00 ntpd[1510]: Listening on interface #7 tun0, 193.196.120.15#123 Enabled
9 Mar 08:09:04 ntpd[1510]: Listening on interface #8 tun1, 141.3.162.67#123 Enabled
Over interface #8 some of the servers are actually available, but
ntpq -p still states:
No association ID's returned
Only when I restart ntpd, it operates as expected:
remote refid st t when poll reach delay offset jitter
==============================================================================
zit-net2.uni-pa .STEP. 16 u - 512 0 0.000 0.000 0.000
alpha.rueckgr.a .STEP. 16 u - 512 0 0.000 0.000 0.000
ntp.goneco.de .STEP. 16 u - 512 0 0.000 0.000 0.000
+proxy4.rz.uni-k 129.13.64.17 2 u 30 128 271 2.937 2.530 1.891
+proxy2.rz.uni-k 129.13.64.17 2 u 58 128 375 3.593 -8.981 1.837
*proxy1.rz.uni-k 129.13.64.17 2 u 15 128 271 3.297 8.244 1.487
--
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