[193177] in North American Network Operators' Group
Re: Recent NTP pool traffic increase (update)
daemon@ATHENA.MIT.EDU (=?utf-8?Q?Ask_Bj=C3=B8rn_Hansen?=)
Thu Dec 22 19:05:24 2016
X-Original-To: nanog@nanog.org
From: =?utf-8?Q?Ask_Bj=C3=B8rn_Hansen?= <ask@develooper.com>
In-Reply-To: <CADbGEnF9VXWYcWXjSk0QyaAXtKpdXc_-OyozJtLhX_YcPgJDcg@mail.gmail.com>
Date: Thu, 22 Dec 2016 16:04:54 -0800
To: FUJIMURA Sho <fujimura@fukuoka-u.ac.jp>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
Hello,
Those servers aren=E2=80=99t (and have never been) part of the NTP Pool =
- https://www.ntppool.org/en/
If they were you could remove them from the system and over the next =
hours, days and months the traffic would go away. We also have features =
to change the relative amount of clients you get (to just get less =
queries instead of withdrawing from the pool altogether).
Anyway, it looks like your IPs are listed on support.ntp.org as =
=E2=80=9Cpublic servers=E2=80=9D, so removing them from there would be =
step 1. However there=E2=80=99s no working mechanism for you to tell the =
clients that they should go away after they=E2=80=99ve hard coded your =
IP in their configuration. (That=E2=80=99s the point of the NTP Pool =
system really, to let you offer a public service and have a avenue to =
stop doing it, too).
support.ntp.org appears to be down, but your IPs are listed on the site =
according to a Google search:
https://www.google.com/search?q=3D133.100.9.2+ntp
Ask
> On Dec 21, 2016, at 7:13 PM, FUJIMURA Sho <fujimura@fukuoka-u.ac.jp> =
wrote:
>=20
> Hello.
>=20
> I operate the public NTP Service as 133.100.9.2
> and 133.100.11.8 at Fukuoka University, Japan.
> I have a lot of trouble with too much NTP traffic from
> many routers which 133.100.9.2 as default setting of NTP
> has been set like Tenda or LB-Link etc.
> So, although I'd like to contact Firmware developpers of these company
> and would like them to change the default settins,
> is there the person knowing the contact information?
>=20
> --=20
> Sho FUJIMURA
> Information Technology Center, Fukuoka University.
> 8-19-1, Nanakuma, Jyonan-ku, Fukuoka, 8140180, Japan
