NTP config help

[Cillian Lyons]

Hi
Thats great! Im glad you got it working.

Cillian

raj sourabh <rajsourabh1 at gmail.com> wrote:

Hi All, Thanks for your responses. I did following; 1. Changed the stratum from 10 to 1 on Master server. 2. I have changed the ntp.conf file on the client machine. server 192.168.6.9 restrict default ignore restrict 127.0.0.1 restrict 192.168.6.9 mask 255.255.255.255 nomodify notrap noquery driftfile /var/lib/ntp/drift Removed all the above except "server 192.168.6.9 ".. Now when I start the ntpd , It successfully synchronizes with Master server. Thanks, Raj Panda On Thu, Feb 10, 2011 at 4:00 PM, 邓卫华 <dengwh at bestcheer.com> wrote: > > > Hi, the stratum is how many hop from internet NTP server to local > server . > > the following information is my ntp server's set. > > Note: > Please run "ps aux |grep ntpd" to confirm whether there exists more than > NPTD process. > > restrict default kod nomodify notrap nopeer noquery > > > restrict -6 default kod nomodify notrap nopeer noquery > restrict > 127.0.0.1 restrict -6 ::1 > restrict 192.168.0.0 mask 255.255.0.0 nomodify > n!
 otrap >
> restrict 172.16.0.0 mask 255.255.0.0 nomodify notrap > server > 192.168.0.14 > > server 210.72.145.44 > > server 133.100.11.8 > > fudge > 127.127.1.0 stratum 3 #(local ntp server, 192.168.0.14, internet ntpd > server.) > > driftfile /var/lib/ntp/drift > > keys /etc/ntp/keys > > logfile > /var/log/ntp.log > > On Thu, 10 Feb 2011 10:15:29 +0000, Cillian Lyons > wrote: > > > Hi, > > > > I think its the stratum of the ntp server that is > the cause. What stratum have you set the ntp server? 10? > > > > If so ,10 > is the default stratum of the ntp server if you dont have a time source > ie local clock. This is also the default stratum for the ntp client, its > local clock. the client is looking for a stratum than is lower then > itself. As you have said you are on a closed system you need to either > attach a local time source to your server ie gps/radio/internet or lower > the stratum value for the local clock on the ntp server. > > > > Regards > > > > > Cillian > > > > raj s!
 ourabh
wrote: > > > > Hi, Thanks for the reply. But > since the synchronization with the server is failing, How will cron do? > Regards, Raj On Thu, Feb 10, 2011 at 10:18 AM, 邓卫华 wrote: > > > on > client, please run ntp server ip address in crond. > > On Thu, 10 > Feb > 2011 08:18:11 +0400, raj sourabh wrote: > > > Hi All, > > > > My > > production platform is a closed system (without internet). I have > > > > configured a NTP server (on rhel5.5) which is started and running > > without > > error. The problem is that all windows client machines are > > able to > > sychronise with my NTP server but RHEL client machines are > not > able to synch > > the time. > > > > my client config are; > > > > > > */etc/ntp.conf* > > ** > > *server 192.168.6.9 > > restrict default > ignore > > > restrict 127.0.0.1 > > restrict 192.168.6.9 mask > 255.255.255.255 nomodify > notrap noquery > > driftfile > /var/lib/ntp/drift > > * > > > > i have entry of > my NTP server name in > step-tickers as!
  well.
when I start ! > > the > > > > service > on client I > get; > > > > [root at TESTAPP ~]# service ntpd restart > > Shutting > down > ntpd: [ OK ] > > ntpd: Synchronizing with time server: [FAILED] > > > > Starting ntpd: [ OK ] > > [root at TESTAPP ~]# ntpdate -q 192.168.6.9 > > > > server 192.168.6.9, stratum 10, offset -0.001541, delay 0.02571 > > 10 > Feb > 08:12:25 ntpdate[8822]: no server suitable for synchronization > found > > > [root at TESTAPP ~]# > > > > ----- > > > > NTP server config > is; > > > > *server > 127.127.1.0* > > *restrict default kod nomodify > notrap noquery nopeer > > > restrict 127.127.1.0 mask 255.255.255.0 > nomodify notrap noquery > > > restrict 192.168.11.0 mask 255.255.255.0 > nomodify notrap > > restrict > 127.0.0.1* > > *fudge 127.127.1.0 stratum > 10 > > driftfile > /var/lib/ntp/drift > > broadcastdelay 0.008 > > keys > /etc/ntp/keys > > logfile > /var/log/ntp > > tos orphan 10 > > * > > > > > As mentioned above, with this > server configuration windo!
 ws
clients are > > > successfully synchronizing > time with! > > ntp > > server. but rhel > servers are not. > > any help?? > > > > > Thanks, > > > > RAJ > > -- > > > Best Cheer (XiaMen) Stone Works CO.,LTP. > T: > 0592-7221600 > > -- > > redhat-list mailing list > unsubscribe > mailto:redhat-list-request at redhat.com?subject=unsubscribe [3] > > https://www.redhat.com/mailman/listinfo/redhat-list [4] > -- redhat-list > mailing list unsubscribe > mailto:redhat-list-request at redhat.com?subject=unsubscribe [5] > https://www.redhat.com/mailman/listinfo/redhat-list [6] > > -- > > Best Cheer > (XiaMen) Stone Works CO.,LTP. > T: 0592-7221600 > > > Links: > ------ > [1] > mailto:rajsourabh1 at gmail.com > [2] mailto:dengwh at bestcheer.com > [3] > mailto:redhat-list-request at redhat.com?subject=unsubscribe > [4] > https://www.redhat.com/mailman/listinfo/redhat-list > [5] > mailto:redhat-list-request at redhat.com?subject=unsubscribe > [6] > https://www.redhat.com/mailman/listinfo/redhat-list > -- >
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