[ntp:questions] ntpdc and collectd queries timeout

Steve Kostecke kostecke at ntp.org
Fri Jan 24 13:40:56 UTC 2014

On 2014-01-24, David Lord <snews at lordynet.org> wrote:

> 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?

According to http://archive.ntp.org/ntp4/ChangeLog-dev
mode 7 requests were disabled more than 2 years ago:

(4.2.7p230) 2011/11/01 Released by Harlan Stenn <stenn at ntp.org>
* Disable mode 7 (ntpdc) query processing in ntpd by default.  ntpq is
  believed to provide all functionality ntpdc did, and uses a less-
  fragile protocol that's safer and easier to maintain.  If you do find
  some management via ntpdc is needed, you can use "enable mode7" in the
  ntpd configuration.

Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/

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