The China zone gets about 100,000 NTP requests per second (or maybe more, but that order of magnitude). It’s basically impossible to join it without getting tens of thousands of queries per second. To “bootstrap” it I’d like to add 25-30 servers (or more) at once (from anywhere in the world). I’m …

Did you use pf or ipfw on freebsd (firewall machine) ?

Hi, After they added me in the CN zone last week, i saw alot of fw states going up towords 500k almost up to 1milion steady. Thanks to avij when i saw what he wrote about notrack on the fw rules, i looked into the pfSense that im using and i have turned “state type” to “none” on those rules now, a…

I use ipfw (which is actually fw2) on the Firewall/ntp server Firewalling was the original function of the machine, but it was running at such a light load that I added the PPS GPS (Garmin 18x LVC) to it and made it a public stratum 1 ntp server as well, then volunteered if for the pool. Apart fro…

Yes, it may be possible that some Chinese DNS servers don’t obey the specified TTL of 150 seconds, but that is not the reason why the CN zone is overloaded. DNS servers (Chinese and elsewhere) don’t care if the NTP server in the DNS response is reachable or not. There simply isn’t such a feedback lo…

There is an enormous amount of totally “wild” clients arround. Generally I have seen a huge amount of traffic like that (I just copied the first several entries few minutes ago): ntpdc> mo remote address port local address count m ver code avgint lstint ==============================…

I just started a thread with an ip filtering rules list with the IPs of absolutely persevering clients: [image] A (preliminary) list of client IPs requesting time milions of times constantly Server operators From inclusion of my server ( http://www.pool.ntp.org/scores/161.5…

[image] avij: Feel free to add these to the China zone as well: pool.ntp.org: Statistics for 94.237.64.20 pool.ntp.org: Statistics for 2a04:3543:1000:2310:d862:f5ff:fe4e:6e9a This offer is still valid. I’d love to see more traffic on this server.

[image] ask: Done, thank you. The capacity available to the China pool has gone from practically nothing to pretty reasonable over the last week and a half. Hopefully we’re getting to where it’s possible for an operator in China to add a server and manage the load by configuring the net speed. …

Please add this server to the CN zone as well: http://www.pool.ntp.org/scores/51.174.171.7

Please add these servers to the CN zone: http://www.pool.ntp.org/scores/139.162.104.13 http://www.pool.ntp.org/scores/45.76.218.213 http://www.pool.ntp.org/scores/45.76.187.80 Thank you

Adding servers to the China zone

Server operators

zorko March 18, 2017, 3:44pm 70

I just started a thread with an ip filtering rules list with the IPs of absolutely persevering clients:

Topic		Replies	Views
CN pool collapse a few hours every day Server operators	48	1832	February 17, 2024
Gradually add/remove server to/from pool in parallel to score increase/decrease Pool Development monitoring , dns	78	2954	August 22, 2024
The issue of NTP requests exceeding bandwidth load Server operators	54	1502	November 24, 2024
Collapse of Russia country zone Server operators	202	4806	December 9, 2024
Server abuse in Philippines Server operators	24	603	December 18, 2025

Adding servers to the China zone

Related topics