[ntp:questions] ntpdc and collectd queries timeout
David Lord
snews at lordynet.org
Fri Jan 24 11:59:59 UTC 2014
michalpurzynski1 at gmail.com wrote:
> Hello.
>
> The ntpdc queries timeout every time on the NTP version ntp-dev-4.2.7p411 (compiled myself). Looks like the type 7 packets are blocked from localhost but I don't know why.
>
> The same queries work on the 4.2.6 (distribution version, Debian).
>
> I test it like this - here's a query result on 4.2.6
>
> root at raspberrypi:~# ntpdc -c kern
> pll offset: -0.024376 s
> pll frequency: -49.895 ppm
> maximum error: 0.0039681 s
> estimated error: 8.071e-06 s
> status: 2001 pll nano
> pll time constant: 4
> precision: 1e-09 s
> frequency tolerance: 500 ppm
>
> And the query on 4.2.7p411, with the same configuration file
> root at raspberrypi:~# ntpdc -c kern
> localhost: timed out, nothing received
> ***Request timed out
On NetBSD-6 i386 ntp-dev-4.2.7p410
$ ntpdc -c kern
localhost: timed out, nothing received
***Request timed out
Perhaps that is intended behavior for 2014 given recent
DDOS attacks?
David
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