As another local datapoint, We are also seeing the same sharp rise in NTP connections. Cheers Shane Geddes | Systems Engineer | Solarix Networks ddi. +64 9 951 5092 | shane.geddes(a)solarix.co.nz 5 Omega Street, Rosedale, Auckland, New Zealand www.solarix.co.nz ________________________________________ From: nznog-bounces(a)list.waikato.ac.nz [nznog-bounces(a)list.waikato.ac.nz] on behalf of Lincoln Reid [lincoln(a)acsdata.co.nz] Sent: Friday, 16 December 2016 2:20 p.m. To: Alex Smith (Platform); Tony Wicks Cc: nznog(a)list.waikato.ac.nz Subject: Re: [nznog] pool.ntp.org traffic gone wild On Fri, 2016-12-16 at 00:16 +0000, Alex Smith (Platform) wrote:
There is also a discussion going on over at the pool list;
http://lists.ntp.org/pipermail/pool/2016-December/007996.html
There doesn't seem to be any consensus there on what has caused it yet. iptables on my personal pool server had a default maximum of ~65k connections which was way too low. I disabled connection tracking yesterday for NTP as one of the folks in the list.ntp.org thread also did and all looked good from then on.
I've seen the same across a number of my (personal) pool servers.
Thanks, good to get another local datapoint. Cheers, -- Lincoln Reid Head of Networks ACSData - AS18119 lincoln(a)acsdata.co.nz Phone: +64 4 939 2200 Fax: +64 4 939 2201 _______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz https://list.waikato.ac.nz/mailman/listinfo/nznog