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-   -   NTP error message on /var/log/messages (http://www.linux-archive.org/centos/263687-ntp-error-message-var-log-messages.html)

John R Pierce 03-15-2009 07:41 PM

NTP error message on /var/log/messages
 
mcclnx mcc wrote:
> I just setup CENTOS 4.7 with latest patches on DELL server. I also configured NTP point to out time server. I found /var/log/messages file every 20 to 30 minutes will generate a error message :
>
> Mar 15 14:28:15 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
> Mar 15 14:45:22 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
> Mar 15 15:02:29 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
>

I'd take a look at /etc/ntpd.conf as it sounds like something is setup
wrong in there. is that IP your NTP server?

.


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Robert Spangler 03-15-2009 08:51 PM

NTP error message on /var/log/messages
 
On Sunday 15 March 2009 16:22, mcclnx mcc wrote:

> I just setup CENTOS 4.7 with latest patches on DELL server. I also
> configured NTP point to out time server. I found /var/log/messages file
> every 20 to 30 minutes will generate a error message :
>
> Mar 15 14:28:15 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
> Mar 15 14:45:22 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
> Mar 15 15:02:29 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument
>
> Any one know whar wring it is?

Any firewalls setup?
Is port 123 open?


--

Regards
Robert

Linux User #296285
http://counter.li.org
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Filipe Brandenburger 03-15-2009 10:30 PM

NTP error message on /var/log/messages
 
Hi,

2009/3/15 mcclnx mcc <mcclnx@yahoo.com.tw>:
> I just setup CENTOS 4.7 with latest patches on DELL server.
> *I also configured NTP point to out time server. *I found
> /var/log/messages file every 20 to 30 minutes will generate
> a error message :
> Mar 15 14:28:15 SER1 ntpd[25037]: sendto(172.29.21.16): Invalid argument

I saw this once when I changed a machine's IP but did not restart the
NTP service. The daemon was still trying to send/receive packets using
the old IP. After restarting NTP (service ntpd restart) the problem
was fixed.

Make sure you also check that NTP is properly synchronizing the clocks
with the "ntpq -p" command.

HTH,
Filipe
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mcclnx mcc 03-16-2009 11:58 AM

NTP error message on /var/log/messages
 
Thanks. You are right. I did NOT reboot after change Ip address. It is correct now.

--- 09/3/15 (日),Filipe Brandenburger <filbranden@gmail.com> 寫道:

> 寄件者: Filipe Brandenburger <filbranden@gmail.com>
> 主旨: Re: [CentOS] NTP error message on /var/log/messages
> 收件者: "CentOS mailing list" <centos@centos.org>
> 日期: 2009 3 15 日 下午 7:30
> Hi,
>
> 2009/3/15 mcclnx mcc <mcclnx@yahoo.com.tw>:
> > I just setup CENTOS 4.7 with latest patches on DELL
> server.
> > 狢 also configured NTP point to out time server. 狢
> found
> > /var/log/messages file every 20 to 30 minutes will
> generate
> > a error message :
> > Mar 15 14:28:15 SER1 ntpd[25037]:
> sendto(172.29.21.16): Invalid argument
>
> I saw this once when I changed a machine's IP but did not
> restart the
> NTP service. The daemon was still trying to send/receive
> packets using
> the old IP. After restarting NTP (service ntpd restart) the
> problem
> was fixed.
>
> Make sure you also check that NTP is properly synchronizing
> the clocks
> with the "ntpq -p" command.
>
> HTH,
> Filipe
> _______________________________________________
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
>


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