[ntp:questions] Re: Help: no server suitable for synchronization found

Wed, 14 Jun 2006 11:01:04 -0700 

Emilio Muno wrote:


When I try to run ntpdate in a workstation in my network, my server fails to
send the answer.
What is wrong? Tks in advance. My configuration: In a client: Command: ntpdate -u -q -p 2 200.220.81.9 2>&1 Looking for host 200.220.81.9 and service ntp 
host found : cheetah.unisys.com.br
server 200.220.81.9, stratum 16, offset 66.466697, delay 0.03835
14 Jun 09:58:03 ntpdate[14772]: no server suitable for synchronization found


My Server Configuration:


# ps -ef | grep ntp

    root  8398     1  0 09:35:31 pts/2    0:01 /usr/local/bin/ntpd -c
/etc/ntp.conf -l /var/log/ntpd.log -d

# ntpq -pcrv

     remote           refid      st t when poll reach   delay   offset
disp

============================================================================
==

 ntp-nasa.arc.na .INIT.          16 u  201  256    0     0.00    0.000
15937.5

 titan.cais.rnp. .RMOT.          16 u  188  256    0     0.00    0.000
15937.5

 ntp.pucpr.br    .INIT.          16 u  194  256    0     0.00    0.000
15937.5

 clock1.redhat.c .INIT.          16 u  213  256    0     0.00    0.000
15937.5

 ntp1.pop-df.rnp .INIT.          16 u    -  256    0     0.00    0.000
15937.5

 zibbi.meraka.cs .INIT.          16 u  221  256    0     0.00    0.000
15937.5

 ntp1.us.grundcl .INIT.          16 u  212  256    0     0.00    0.000
15937.5

 ima.cipsga.org. .INIT.          16 u  236  256    0     0.00    0.000
15937.5

 goat.de.20six.n .INIT.          16 u  228  256    0     0.00    0.000
15937.5

 trubadurix.chow .INIT.          16 u  232  256    0     0.00    0.000
15937.5

status=c011 sync_alarm, sync_unspec, 1 event, event_restart

version="ntpd [EMAIL PROTECTED] Tue Jun 13 11:33:28 EST 2006 (1)",

processor="sun4u", system="SunOS/5.8", leap=11, stratum=16,

precision=-19, rootdelay=0.00, rootdispersion=27.96, peer=0, refid=INIT,

reftime=00000000.00000000  Thu, Feb  7 2036  4:28:16.000, poll=6,

clock=c83a886b.cf7bd52f  Wed, Jun 14 2006 10:06:51.810, state=1,

offset=0.000, frequency=0.000, jitter=0.002, noise=0.002,

stability=0.000, tai=0


# more /etc/ntp.conf

#Se nao colocar ele loga no syslog

logfile /var/log/ntpd

logconfig =all

driftfile /etc/ntp/ntp.drift

statsdir /etc/ntp/


statistics loopstats peerstats clockstats

filegen loopstats file loopstats type day enable

filegen peerstats file peerstats type day enable

filegen clockstats file clockstats type day enable


#Lista de servidores

server ntp.nasa.gov prefer

server ntp.cais.rnp.br

server ntp1.pucpr.br

server clock.redhat.com

server titan.cais.rnp.br

server ntp1.rnp.br

server ntp1.icomtek.csir.co.za


# Pool de servidores NTP do ntp.org. Podem ser colocadas mais linhas iguais

server 0.south-america.pool.ntp.org

server 1.south-america.pool.ntp.org

server 2.south-america.pool.ntp.org

server pool.ntp.org

server 1.pool.ntp.org

server 2.pool.ntp.org


#Se todo mundo falhar o proprio servidor vira ntp principal

fudge           127.127.1.0 stratum 10

broadcastdelay  0.008


restrict default notrust nomodify

#restrict 200.220.0.0  mask 255.255.255.0 nomodify

restrict 200.220.0.0  mask 255.255.128.0 nomodify

#restrict 200.220.0.0  mask 255.255.0.0 nomodify

#restrict 200.220.64.0 mask 255.255.255.0 nomodify

#restrict 200.220.81.0 mask 255.255.255.0 nomodify

#restrict 200.220.74.0 mask 255.255.255.0 nomodify

#restrict 200.220.5.0  mask 255.255.255.0 nomodify

#restrict 200.220.6.10  mask 255.255.255.255 nomodify

#restrict 200.220.13.0  mask 255.255.255.0 nomodify

#restrict 200.220.14.0  mask 255.255.255.0 nomodify

#restrict 200.220.31.0  mask 255.255.255.0 nomodify

#restrict 200.220.0.0  mask 255.255.255.0 nomodify

restrict 129.222.50.21 mask 255.255.255.255 nomodify

restrict 129.222.43.21 mask 255.255.255.255 nomodify

#restrict 200.220.104.0 mask 255.255.255.240 nomodify

restrict 127.0.0.1 nomodify


#Desabilita a autenticação pra rede local

disable auth

broadcastclient


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Your problem is obvious. The server that you are querying for time is not synchronized, does not know what time it is, and therefore cannot reply!
Your server is not synchronized because it cannot establish contact with any of the servers you have specified. I would suggest removing ALL the restrict statements. Then decide whether you want to be a "broadcast client" or use your specified servers. Trying to do both makes no sense. Also note that you cannot be a broadcast client unless a server on your local network is configured to broadcast NTP packets.
Finally, you have specified far more servers than you can possibly use. Those servers appear to be scattered all over the world. Select four servers located close to you. Since you appear to be located in Brazil, servers in Brazil or South America would be the best choices. The greater the distance, the longer the round trip delay and the poorer the performance. 

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