Subject: ntp: Default distribution does not form peer relationships
Package: ntp
Version: 1:4.2.4p4+dfsg-3
Severity: important
I have two Debian systems running. With the identical ntp.conf, one (AMD
k7) will sync while the other (AMD64 as shown below) will not. I cannot
even persuade the AMD64 system to peer with the AMD k7 system.
My config file reads:
driftfile /var/lib/ntp/ntp.drift
statsdir /var/log/ntpstats/
logconfig =syncstatus +allevents +allinfo +allstatus
logfile /var/log/ntpd
filegen loopstats file loopstats type day enable
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable
statistics loopstats peerstats clockstats
server nist1.datum.com
server 0.debian.pool.ntp.org dynamic iburst
server 1.debian.pool.ntp.org dynamic iburst
server 2.debian.pool.ntp.org dynamic iburst
server 3.debian.pool.ntp.org dynamic iburst
server 0.us.pool.ntp.org dynamic iburst
server 1.us.pool.ntp.org dynamic iburst
server 2.us.pool.ntp.org dynamic iburst
server 3.us.pool.ntp.org dynamic iburst
server bagpipes.local
I've added this rather long list in order to find *something* to sync
with. At ntp start time, I get in the log:
10 Feb 10:17:37 ntpd[15698]: system event 'event_peer/strat_chg' (0x04)
status 'sync_alarm, sync_ntp, 2 events, event_restart' (0xc621)
10 Feb 10:17:37 ntpd[15698]: synchronized to 216.184.20.83, stratum 3
10 Feb 10:17:38 ntpd[15698]: time reset +1.456355 s
10 Feb 10:17:38 ntpd[15698]: kernel time sync status change 0001
However,
s# ntpq -c as
ind assID status conf reach auth condition last_event cnt
===========================================================
1 31069 8000 yes yes none reject
2 31070 9024 yes yes none reject reachable 2
3 31071 9024 yes yes none reject reachable 2
4 31072 9024 yes yes none reject reachable 2
5 31073 9024 yes yes none reject reachable 2
6 31074 9024 yes yes none reject reachable 2
7 31075 9024 yes yes none reject reachable 2
8 31076 9024 yes yes none reject reachable 2
627 ntpstats# date
Sun Feb 10 10:38:55 CST 2008
In other words, after 20 minutes all outside servers and the inside
server are still listed as "rejected." I see multiple "unreach" events
in the log.
# ntpdc -c peers -c sysinfo
remote local st poll reach delay offset disp
=======================================================================
=clock.trit.net 172.28.54.162 2 64 377 0.07658 24.532540 0.07133
=63.240.161.99 172.28.54.162 2 64 377 0.01187 26.785723 0.06363
=mick.eng.uiowa. 172.28.54.162 2 64 377 0.01299 32.043092 0.04242
=hydrogen.cert.u 172.28.54.162 2 64 377 0.08910 36.593320 0.03636
=bagpipes.local 172.28.54.162 2 64 377 0.00017 27.291048 0.06699
=nick125.com 172.28.54.162 3 64 377 0.12784 34.653144 0.04703
=nist1.symmetric 172.28.54.162 1 64 0 0.00000 0.000000 3.99217
=dtype.org 172.28.54.162 2 64 377 0.06665 33.784147 0.05498
system peer: 0.0.0.0
system peer mode: unspec
leap indicator: 11
stratum: 16
precision: -20
root distance: 0.00000 s
root dispersion: 0.02193 s
reference ID: [83.84.69.80]
reference time: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
system flags: auth monitor ntp kernel stats
jitter: 0.144241 s
stability: 0.000 ppm
broadcastdelay: 0.003998 s
authdelay: 0.000000 s
I am running both systems behind a firewall. There are no restrict
statements in either config file. The firewall does not have any
particular rules regarding the
Finally, the Enhanced Real Time Clock of this particular kernel seems to
be enabled:
CONFIG_RTC=y
according to /boot/config-2.6.24-1-amd64.
Please let me know if I can provide further information. I've spent a
great deal of time debugging, but I am at a loss to explain why a fresh,
clean install doesn't work "out of the box" in the same network as one
other Debian unstable as well as a Mac and Windows box.
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.24-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages ntp depends on:
ii adduser 3.105 add and remove users and groups
ii libc6 2.7-6 GNU C Library: Shared libraries
ii libcap1 1:1.10-14 support for getting/setting
POSIX.
ii libreadline5 5.2-3 GNU readline and history
libraries
ii libssl0.9.8 0.9.8g-4 SSL shared libraries
ii lsb-base 3.1-24 Linux Standard Base 3.1
init scrip
ii netbase 4.30 Basic TCP/IP networking system
Versions of packages ntp recommends:
ii perl 5.8.8-12 Larry Wall's Practical
Extraction
-- no debconf information
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