[ntp:hackers] NTPv4 Brian Version
Brian Utterback
Brian.Utterback at Sun.COM
Thu Aug 11 01:31:40 UTC 2005
Danny Mayer wrote:
> David L. Mills wrote:
>
>> Folks,
>>
>> For some reason the pool is giving attitude. The resolver returns the
>> same server every time asked. The nslookup and dig utilities in
>> Solaris apparently return the right stuff, but the ntpd resolver seems
>> stuck. None of the region zones work except us and asia. It would be
>> nice that, by direction, the entire list returned in one query would
>> be lit up rather than callinb many times.
>>
>> Dave
>
>
> Dave, the reason that dig and nslookup give you different answers than
> the ntpd calls is that dig and nslookup are BIND utilities and they only
> ask the DNS for answers, they never check anywhere else. The resolver
> that the box uses can check in all sorts of places including the ncsd or
> whatever. dig, host and nslookup can only tell you what the answer
> should be not what your application is seeing.
>
> I'd rather ntpd bypass that nonsense though vendors may disagree.
>
I suppose that being a vendor, I will have to disagree. Strenuously.
DNS is only one of many possible naming services. To bypass the
configured naming service and use DNS instead is very ill-advised at
best and in many environments, simply will not work. Of the many systems
I use, exactly one even has a resolv.conf file.
Brian Utterback
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