1.30.1 [ntpd] - not able to query

[vtolkm at googlemail.com]

On 03/07/2019 12:26, Denys Vlasenko wrote:
> On Wed, Jul 3, 2019 at 12:02 PM <vtolkm at googlemail.com> wrote:
>> On 03/07/2019 11:55, Denys Vlasenko wrote:
>>> On Tue, Jul 2, 2019 at 3:20 PM <vtolkm at googlemail.com> wrote:
>>>> On 02/07/2019 15:07, Denys Vlasenko wrote:
>>>>>> Or won't fix and the ntpd implementation in busybox is not suited to act
>>>>>> as server?
>>>>> It does act as server - you can query time from it and syncronize with it.
>>>>> Support of mode6 requests is not mandatory for server implementation.
>>>> I am afraid that is rather questionable considering that none of the
>>>> querying tools (below) imply that queries are actually being served.
>>>> Do you reckon that all those querying apps are reliant on NTPv2 mode 6
>>>> then, none producing an output from ntpd -dddd?
>>>>
>>>> Started thread started because I am concerned that it actually serves
>>>> queries, considering:
>>>>
>>>> # ntpdate localhost
>>>> no server suitable for synchronization found
>>> I see this:
>>>
>>> # ntpdate -qv 127.0.0.1
>>>  3 Jul 11:50:04 ntpdate[16422]: ntpdate 4.2.8p13 at 1.3847-o Mon May 20
>>> 08:32:18 UTC 2019 (1)
>>> server 127.0.0.1, stratum 2, offset 0.000036, delay 0.02782
>>>  3 Jul 11:50:04 ntpdate[16422]: adjust time server 127.0.0.1 offset 0.000036 sec
>>>
>>> IOW: it works.
>> # ntpdate -ddddqv 127.0.0.1
>>  3 Jul 11:00:25 ntpdate[15239]: ntpdate 4.2.8p13 at 1.3847-o Thu Jun 20
>> 14:26:21 UTC 2019 (1)
>> Looking for host 127.0.0.1 and service ntp
>> 127.0.0.1 reversed to localhost
>> host found : localhost
>> transmit(127.0.0.1)
>> transmit to 127.0.0.1
>> 127.0.0.1: Server dropped: no data
>>
>>  3 Jul 11:00:27 ntpdate[15239]: no server suitable for synchronization found
> What does ntpd log say when you do this?

It does not anything with ntpdate -v localhost | ntpdate localhost

but ntpdate -d localhost | ntpdate -q localhost do work indeed.

What probably compounded (my apparent confusion) is that tools ntpq |
ntpdc I commonly use to check upon ntpd are not working (as you explained).

Thank you for your effort/input.