[ntp:questions] 4.2.0 at 1.1161-r | Server dropped: strata too high | How to change this

Stefan Nicolin google at nicolinux.de
Wed Feb 4 14:30:07 UTC 2004


Hi,

with ntpd I have the said error every time I try to sync time from a
unix client. How can the server get syncronized? That's the complete
output from "ntpdate -d 192.168.0.2"

---
 4 Feb 14:36:31 ntpdate[1758]: ntpdate 4.1.2 at 1.892 Tue Feb  3 12:28:16
CET 2004
(1)
transmit(192.168.0.2)
receive(192.168.0.2)
transmit(192.168.0.2)
receive(192.168.0.2)
transmit(192.168.0.2)
receive(192.168.0.2)
transmit(192.168.0.2)
receive(192.168.0.2)
transmit(192.168.0.2)
192.168.0.2: Server dropped: strata too high
server 192.168.0.2, port 123
stratum 16, precision -20, leap 11, trust 000
refid [73.78.73.84], delay 0.02571, dispersion 0.00000
transmitted 4, in filter 4
reference time:    00000000.00000000  Thu, Feb  7 2036  7:28:16.000
originate timestamp: c3cb73c4.1ded288c  Wed, Feb  4 2004 14:36:04.116
transmit timestamp:  c3cb73df.656e1587  Wed, Feb  4 2004 14:36:31.396
filter delay:  0.02577  0.02571  0.02571  0.02573 
         0.00000  0.00000  0.00000  0.00000 
filter offset: -27.2793 -27.2793 -27.2793 -27.2793
         0.000000 0.000000 0.000000 0.000000
delay 0.02571, dispersion 0.00000
offset -27.279369

 4 Feb 14:36:31 ntpdate[1758]: no server suitable for synchronization
found
---

According to the detailed informations "leap 11" the ntpd server
claims itself that it is not syncronized. That's my question - how to
get the server syncronized? And yes it was running for more than one
day (before) :)

On the server side it is a simple setup - Here is the ntpd.conf:

---
server 195.13.23.5
server 129.240.64.3
server 212.42.1.207

restrict default noserve        # default deny
restrict 127.0.0.1              # allow local host
restrict 192.168.0.0 mask 255.255.255.0 nopeer nomodify notrap
restrict 192.168.1.0 mask 255.255.255.0 nopeer nomodify notrap

driftfile /etc/ntp.drift
---

It seems that the server does not syncronise itself for whatever
reason. Port 123 (udp) is allreade open (outbound, keep state).

Doing a ntptrace on the first server from the config reveals this:

---
195.13.23.5: stratum 2, offset 0.045841, root distance 0.162429
---

Upon starting the ntpd server with the -d switch - this is the output:

---
addto_syslog: logging to file /var/log/ntpd.log
ntpd 4.2.0 at 1.1161-r Tue Feb  3 11:41:03 CET 2004 (1)
addto_syslog: logging to file /var/log/ntpd.log

addto_syslog: ntpd 4.2.0 at 1.1161-r Tue Feb  3 11:41:03 CET 2004 (1)

addto_syslog: signal_no_reset: signal 13 had flags 4000000

addto_syslog: precision = 1.000 usec

create_sockets(123)
root at modula:~# addto_syslog: no IPv6 interfaces found
bind() fd 3, family 2, port 123, addr 0.0.0.0, flags=8
bind() fd 6, family 2, port 123, addr 127.0.0.1, flags=0
bind() fd 7, family 2, port 123, addr 192.168.0.2, flags=8
init_io: maxactivefd 7
local_clock: at 0 state 0
key_expire: at 0
peer_clear: at 0 assoc ID 4380 refid INIT
newpeer: 192.168.0.2->195.13.23.5 mode 3 vers 4 poll 6 10 flags 0x1
0x1 ttl 0 key 00000000
key_expire: at 0
peer_clear: at 0 assoc ID 4381 refid INIT
newpeer: 192.168.0.2->129.240.64.3 mode 3 vers 4 poll 6 10 flags 0x1
0x1 ttl 0 key 00000000
key_expire: at 0
peer_clear: at 0 assoc ID 4382 refid INIT
newpeer: 192.168.0.2->212.42.1.207 mode 3 vers 4 poll 6 10 flags 0x1
0x1 ttl 0 key 00000000
addto_syslog: frequency initialized 0.000 PPM from /etc/ntp.drift

local_clock: at 0 state 1
report_event: system event 'event_restart' (0x01) status 'sync_alarm,
sync_unspec, 1 event, event_unspec' (0xc010)
transmit: at 1 192.168.0.2->195.13.23.5 mode 3
auth_agekeys: at 1 keys 1 expired 0
timer: refresh ts 0
transmit: at 2 192.168.0.2->129.240.64.3 mode 3
transmit: at 3 192.168.0.2->212.42.1.207 mode 3
---

Thanks much

Stefan



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