[ntp:questions] Need help on NTP client

Gao gao at pztop.com
Mon Jul 27 16:04:55 UTC 2015


Thanks Han for the help. But when I put the line in the config file it 
generate error:

Jul 27 08:54:59 test ntpd[12497]: getaddrinfo: "source" invalid host 
address, ignored

I remove the argument "source" the error is gone but ntpd still not 
working properly.

Gao


On 15-07-27 02:43 AM, MAYER Hans wrote:
> Hi Gao,
>
> Could you fix the issue in the meantime ?
> What I am missing is a line like this:
> restrict source nomodify nopeer notrap
>
> // Hans
>
>
>
> -----Original Message-----
> From: questions [mailto:questions-bounces+mayer=iiasa.ac.at at lists.ntp.org] On Behalf Of Gao
> Sent: Wednesday, July 22, 2015 7:29 PM
> To: questions at lists.ntp.org
> Subject: [ntp:questions] Need help on NTP client
>
> Hello list,
>
> I have a local NTP server setup in my office LAN. It is a CentOS6 VM. On the server ntpd works fine. Now I build a new CentOS7 server and it can't sync with any of the NTP server, including my local server.
>
> Here is my local NTP server(ovpn.sjv.lan, IP:192.168.123.46):
>
> [root at ovpn ~]# ntpq -p
>        remote           refid      st t when poll reach   delay offset
> jitter
> ==============================================================================
> +ntp1.torix.ca   .PPS.            1 u   53 1024  377   68.759 -0.453  11.657
> *ntp2.torix.ca   .PPS.            1 u  699 1024  377   72.491 3.638   0.412
> +69.28.67.44     18.26.4.105      2 u  101 1024  357   64.888 -1.005   2.151
> -euro-shared.oln 142.3.100.2      2 u  621 1024  377  100.648 15.585  11.371
>    LOCAL(0)        .LOCL.          10 l  18h   64    0    0.000 0.000   0.000
>
> [root at ovpn ~]# iptables -L -n
> Chain INPUT (policy ACCEPT)
> target     prot opt source               destination
> ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           udp dpt:123
> ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           udp spt:123
>
> ###############################################
>
> Now the new installed CentOS7(test.sjv.lan):
>
> firewalld and SELinux has been disabled.
>
> [root at test log]# ntpq -p
>        remote           refid      st t when poll reach   delay offset
> jitter
> ==============================================================================
>    ovpn.sjv.lan    .INIT.          16 u    -   64    0    0.000 0.000   0.000
>    kirdu.smartacti .INIT.          16 u    -   64    0    0.000 0.000   0.000
>    ntp3.torix.ca   .INIT.          16 u    -   64    0    0.000 0.000   0.000
>    euro-shared.oln .INIT.          16 u    -   64    0    0.000 0.000   0.000
>    bitdonut.co     .INIT.          16 u    -   64    0    0.000 0.000   0.000
>
> [root at test log]# cat /etc/ntp.conf | egrep -v "(^#.*)"
>
> driftfile /var/lib/ntp/drift
>
> restrict default nomodify notrap nopeer noquery
>
> restrict 127.0.0.1
> restrict ::1
>
> server ovpn.sjv.lan iburst
> server 0.centos.pool.ntp.org iburst
> server 1.centos.pool.ntp.org iburst
> server 2.centos.pool.ntp.org iburst
> server 3.centos.pool.ntp.org iburst
>
> includefile /etc/ntp/crypto/pw
>
> keys /etc/ntp/keys
>
> disable monitor
>
>
>
>
> [root at test log]# ntpdate -q ovpn.sjv.lan server 192.168.123.46, stratum 2, offset -5.304602, delay 0.02580
> 22 Jul 10:24:37 ntpdate[12081]: step time server 192.168.123.46 offset
> -5.304602 sec
>
> ################################################
>
> I don't know what to do. I tried to turn off firewall on both nodes. The "ntpq -p" just wont show me any sign of reach the servers, both local and public.
>
> Please help.
>
>
>
> Gao
>
>
>
>
>


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