NTP issues

[Stuart Driver]

I am trying to configure NTP

I can ping the remote NTP server.

When I start the xnptd process.
The ntpq command comes back succesfully

When I stop the xntpd process to run a ntpdate
command to the remote NTP server it fails with

ntpdate[1661]: no server suitable for synchronization found

When I run the ntpq -q server command with the xntpd not running it fails with

timed out, nothing received
***Request timed out

[Marcel Boogert_1]

Hi there,

Please post your ntp config file here.

MB.

[Shaikh Imran]

Hi,

maybe you made some mistakes configuring
ntp.conf

Check /etc/ntp.conf For:
1) Server name or IP
2) Stratum level
3) drift file.(optional)

I have heard for the first synchronisaton it will take time ( say about 15 minutes also)

Pls revert back with /etc/ntp.conf file ...


Regards,

[Stuart Driver]

server server_name version 3 prefer

[Marcel Boogert_1]

Hi there,

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=291427

Check this page for information.

MB.

[Ron Kinner]

Could there be a firewall or other filter blocking the ntp ports? (UDP 123)

When you pinged did you ping by IP address or name? Do both work?

Are you sure the ntp server is setup correctly and working? Do other devices already sync to it?

Make sure your system clock is set to something very close to and preferably slightly behind ntp time. ntp doesn't like to make large changes and Unix gets very nervous about running the clock backwards.

Ron

[kamal_9]

Hi Stuart
Pls check your reference server and the check the conf file.

[Sanjay_6]

Hi,

If the ntp daemon "xntpd" is not running, how do you expect to get and output from ntpq -p command.

Hope this helps.

Regds

[rick jones]

indeed, there could be some firewall or other connectivity issue - while your xntpd is running, you can get ntpq output even if the xntpd is not successful in syncing with your time sources - btw, you _should_ configure more than one time source in your ntp.conf file...

Anyhow, you should see non-zero values for "reach" or "reachable" or whatever that column is called in the output of "peers" in ntpq. And then before too long you should see a "*" (IIRC, doublecheck the ntpq manpage) next to the name of one of your time sources indicating that time is now synchronized.

also, as a longshot, you might triple check the spelling on server_name and verify you have the complete syntax correct for ntpdate - IIRC there should be an ntpdate manpage to assist with the latter.

[Mark Greene_1]

Fire up ntpd, and then run ntpq. Run the "associations" command, and then the "pstatus" command using the ID from the "associations" output. The output is a bit cryptic, this page may help with that:

http://www.opus1.com/mnetdoc/admin_guide/Ch14.htm

mark

[Stuart Driver]

The issue was caused by firewall issues

Thanks

Stuart