[ntp:questions] Re: server lines

David J Taylor david-taylor at blueyonder.co.not-this-bit.nor-this-part.uk
Tue Mar 8 17:14:46 UTC 2005


Charles wrote:
> Running Fedora Core 3.
> /etc/ntp.conf contains several "server" lines, but in particular
>    server ntp5.tamu.edu
>    server clock.redhat.com
>
> When I run "ntpq -p" it returns
>    ntp3.tamu.edu
>    clock2.redhat.com
>
> Is there something that makes this seem sensible?
> Is there some sensible explanation for how ntpd changes these?

Nothing to do woth NTP - it's DNS and aliases:

--------------------------------------

nslookup
Default Server:  ns1-edi.blueyonder.net
Address:  62.31.64.39

> ntp5.tamu.edu
Server:  ns1-edi.blueyonder.net
Address:  62.31.64.39

Non-authoritative answer:
Name:    ntp3.tamu.edu
Address:  128.194.254.9
Aliases:  ntp5.tamu.edu

> clock.redhat.com
Server:  ns1-edi.blueyonder.net
Address:  62.31.64.39

Non-authoritative answer:
Name:    clock.redhat.com
Addresses:  66.187.224.4, 66.187.233.4, 209.132.176.4

> 66.187.233.4
Server:  ns1-edi.blueyonder.net
Address:  62.31.64.39

Name:    clock1.redhat.com
Address:  66.187.233.4

> 66.187.224.4
Server:  ns1-edi.blueyonder.net
Address:  62.31.64.39

Name:    clock2.redhat.com
Address:  66.187.224.4

> exit
--------------------------------

I hope the .edu server is one with public access permission.  Yes, 
although in the list at:

  http://ntp.isc.org/bin/view/Servers/StratumTwoTimeServers

it is shown as: ntppub.tamu.edu

Cheers,
David 





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