# Server operators **URL:** https://community.ntppool.org/c/server-operators/6.md?page=2 [Latest](https://community.ntppool.org/latest.md) · [Categories](https://community.ntppool.org/categories.md) · [Tags](https://community.ntppool.org/tags.md) **Page:** 3 --- ## [Monitoring API? Documentation?](https://community.ntppool.org/t/monitoring-api-documentation/3995)
**Author:** [@ChrisJ](https://community.ntppool.org/u/ChrisJ)\ **Replies:** 4\ **Last updated:** [February 22, 2026, 7:55pm UTC](https://community.ntppool.org/t/monitoring-api-documentation/3995 "2026-02-22T19:55:04Z")
I’ve seen various references here to ‘the monitoring API’ plus some examples. This would be quite useful to me - is there any kind of documentation anywhere about this? --- ## [How to get Chrony dead right](https://community.ntppool.org/t/how-to-get-chrony-dead-right/4241)
**Author:** [@Bas](https://community.ntppool.org/u/Bas)\ **Replies:** 6\ **Last updated:** [February 12, 2026, 3:52pm UTC](https://community.ntppool.org/t/how-to-get-chrony-dead-right/4241 "2026-02-12T15:52:20Z")
Did anybody see this? Why did it get so stable? I do not know if others tried this. But I found that timedatectl was making a mess of things. This caused it: systemctl disable --now systemd-timesyncd then system… --- ## [Discussion of client traffic in BE (Belgium) zone](https://community.ntppool.org/t/discussion-of-client-traffic-in-be-belgium-zone/4229)
**Author:** [@stevesommars](https://community.ntppool.org/u/stevesommars)\ **Replies:** 14\ **Last updated:** [February 2, 2026, 7:12pm UTC](https://community.ntppool.org/t/discussion-of-client-traffic-in-be-belgium-zone/4229 "2026-02-02T19:12:59Z")
Bas and I each have a client in the BE zone (actually BE+Europe+Global). Both provide good time accuracy & have scores of 20. Both have netspeed of 3Gbps. I’d like to verify that our clients get similar traffic. Bas… --- ## [Some servers polled less frequently since noon today](https://community.ntppool.org/t/some-servers-polled-less-frequently-since-noon-today/4222)
**Author:** [@avij](https://community.ntppool.org/u/avij)\ **Replies:** 16\ **Last updated:** [January 14, 2026, 2:44pm UTC](https://community.ntppool.org/t/some-servers-polled-less-frequently-since-noon-today/4222 "2026-01-14T14:44:53Z")
I noticed that some (but not all) servers get polled less frequently now (example): Other examples: 94.237.125.46, 45.115.225.48, 94.237.79.110, 2a01:4f9:4a:460a::2 (these were not hard to find) However, according … --- ## [Monitoring problems (again)?](https://community.ntppool.org/t/monitoring-problems-again/4227)
**Author:** [@Kets\_One](https://community.ntppool.org/u/Kets_One)\ **Replies:** 4\ **Last updated:** [January 14, 2026, 11:23am UTC](https://community.ntppool.org/t/monitoring-problems-again/4227 "2026-01-14T11:23:01Z")
Since yesterday i am getting “Bad Stratum” errors on some of my servers, (2a02:a46d:7ac:1:f690:eaff:fe00:700e), while they appear to operate perfectly when interrogated from outside the pool ( NTP Server Online Test Tool… --- ## [No active nor testing entries](https://community.ntppool.org/t/no-active-nor-testing-entries/4211)
**Author:** [@pakal.org](https://community.ntppool.org/u/pakal.org)\ **Replies:** 6\ **Last updated:** [January 6, 2026, 6:39pm UTC](https://community.ntppool.org/t/no-active-nor-testing-entries/4211 "2026-01-06T18:39:37Z")
Hello, I don’t see any “active” or “testing” entries on my server, is it normal ? is it really used in the pool ? Thanks Pascal --- ## [Cringe at thought of NTP server on a VM?](https://community.ntppool.org/t/cringe-at-thought-of-ntp-server-on-a-vm/978)
**Author:** [@imcdona](https://community.ntppool.org/u/imcdona)\ **Replies:** 14\ **Last updated:** [December 28, 2025, 6:15am UTC](https://community.ntppool.org/t/cringe-at-thought-of-ntp-server-on-a-vm/978 "2025-12-28T06:15:31Z")
Is it just me or does anyone else cringe at the thought that NTP is being served from virtual machines? I get that in this day and age everyone is running servers in the cloud but still… It feels so very very wrong. --- ## [Steady traffic increase BE since around midnight CET yesterday](https://community.ntppool.org/t/steady-traffic-increase-be-since-around-midnight-cet-yesterday/4182)
**Author:** [@MagicNTP](https://community.ntppool.org/u/MagicNTP)\ **Replies:** 52\ **Last updated:** [December 24, 2025, 6:49pm UTC](https://community.ntppool.org/t/steady-traffic-increase-be-since-around-midnight-cet-yesterday/4182 "2025-12-24T18:49:48Z")
On my server in the Netherlands that is helping out in the BE zone, I have seen a steady increase in traffic since about midnight local time yesterday, more than doubling so far, see attached throughput graph. Anyone… --- ## [I take a big hit in queries](https://community.ntppool.org/t/i-take-a-big-hit-in-queries/4076)
**Author:** [@Bas](https://community.ntppool.org/u/Bas)\ **Replies:** 111\ **Last updated:** [December 15, 2025, 8:26pm UTC](https://community.ntppool.org/t/i-take-a-big-hit-in-queries/4076 "2025-12-15T20:26:14Z")
@Ask, I noticed that my Stratum 1 server takes a big hit in Belgium and WORLD! on queries. Where my other stratum 2 servers get far less. All are set to 512K, but my Belgian Str-1 server has a massive higher number of… --- ## [Big time providers tech report](https://community.ntppool.org/t/big-time-providers-tech-report/4159)
**Author:** [@giovane](https://community.ntppool.org/u/giovane)\ **Replies:** 10\ **Last updated:** [December 6, 2025, 3:30am UTC](https://community.ntppool.org/t/big-time-providers-tech-report/4159 "2025-12-06T03:30:28Z")
Folks, We have just released a new tech report (PDF) on analyzing other time services providers than the NTP Pool. Why does this matter? There’s been plenty of academic papers bashing the NTP Pool – and yet, there ha… --- ## [Server CSV/JSON logs stopped updating 04:33 on 5 Dec](https://community.ntppool.org/t/server-csv-json-logs-stopped-updating-04-33-on-5-dec/4168)
**Author:** [@bjh21](https://community.ntppool.org/u/bjh21)\ **Replies:** 3\ **Last updated:** [December 5, 2025, 6:13pm UTC](https://community.ntppool.org/t/server-csv-json-logs-stopped-updating-04-33-on-5-dec/4168 "2025-12-05T18:13:05Z")
I’ve just noticed that the CSV and JSON logs of monitor readings for my servers, and hence the graphs on the server pages, stopped updating at 04:33 today. The live scores don’t seem to be affected, though. For example… --- ## [NTS certificate monitoring](https://community.ntppool.org/t/nts-certificate-monitoring/4143)
**Author:** [@cincura.net](https://community.ntppool.org/u/cincura.net)\ **Replies:** 13\ **Last updated:** [November 21, 2025, 5:39pm UTC](https://community.ntppool.org/t/nts-certificate-monitoring/4143 "2025-11-21T17:39:09Z")
I wanted to monitor certificate expiration on my NTS server on Uptime Kuma, so I wrote a simple HTTP tool for that. More info here. --- ## [Time.cloudflare.com survived the outage](https://community.ntppool.org/t/time-cloudflare-com-survived-the-outage/4141)
**Author:** [@giovane](https://community.ntppool.org/u/giovane)\ **Replies:** 0\ **Last updated:** [November 18, 2025, 8:35pm UTC](https://community.ntppool.org/t/time-cloudflare-com-survived-the-outage/4141 "2025-11-18T20:35:36Z")
So Cloudflare had an outage today, but it did not seem to affect their time servers: pool.ntp.org: Statistics for 162.159.200.123 pool.ntp.org: Statistics for 162.159.200.1 pool.ntp.org: Statistics for 2606:4700:f1::1… --- ## [Leap second in October 2026?](https://community.ntppool.org/t/leap-second-in-october-2026/4132)
**Author:** [@Maurice](https://community.ntppool.org/u/Maurice)\ **Replies:** 17\ **Last updated:** [November 15, 2025, 1:11pm UTC](https://community.ntppool.org/t/leap-second-in-october-2026/4132 "2025-11-15T13:11:21Z")
Hi, I just noticed that my LeoNTP 1200 thinks that there will be a leap second in 351 days. So that would be somewhere in October next year. That seems pretty unlikely to me, not to say total nonsense. Anyone else see… --- ## [I HATE IPv6! Address changes when MAC changes?!](https://community.ntppool.org/t/i-hate-ipv6-address-changes-when-mac-changes/4136)
**Author:** [@errolt](https://community.ntppool.org/u/errolt)\ **Replies:** 24\ **Last updated:** [November 14, 2025, 8:44pm UTC](https://community.ntppool.org/t/i-hate-ipv6-address-changes-when-mac-changes/4136 "2025-11-14T20:44:31Z")
Do I get this right? Your public IPv6 address is linked to your firewall/router!? So if you change your firewall/Router then you get a new IPv6 address and you have to deregister your ntp server and re-register a new se… --- ## [Found me a new GPS + PPS cheap](https://community.ntppool.org/t/found-me-a-new-gps-pps-cheap/4126)
**Author:** [@Bas](https://community.ntppool.org/u/Bas)\ **Replies:** 33\ **Last updated:** [November 14, 2025, 5:42pm UTC](https://community.ntppool.org/t/found-me-a-new-gps-pps-cheap/4126 "2025-11-14T17:42:15Z")
Hi all, Ordered me a new GPS with PPS to be used on RS-232: https://nl.aliexpress.com/item/1005009458614732.html I have StarTech.com RS-232 card in use that has the option to send 5V via the RS-232 port by jumper it t… --- ## [Here is live data from my NTP-NTS server](https://community.ntppool.org/t/here-is-live-data-from-my-ntp-nts-server/4134)
**Author:** [@magnemann](https://community.ntppool.org/u/magnemann)\ **Replies:** 60\ **Last updated:** [November 13, 2025, 10:53pm UTC](https://community.ntppool.org/t/here-is-live-data-from-my-ntp-nts-server/4134 "2025-11-13T22:53:11Z")
You may use the data to compare to your own server. I’m curious of the accuracy of this server, what is normal numbers? Also Im interested in NTS and NTS pool. What does the future holds? @Bas --- ## [Stop abuse clients/IP's](https://community.ntppool.org/t/stop-abuse-clients-ips/4122)
**Author:** [@Bas](https://community.ntppool.org/u/Bas)\ **Replies:** 43\ **Last updated:** [November 7, 2025, 4:26pm UTC](https://community.ntppool.org/t/stop-abuse-clients-ips/4122 "2025-11-07T16:26:04Z")
Hi all, I got from my friend in Leuven some rules top stop abuse of NTP-servers by some bad clients. First, follow this website and install iptables-persistant: https://linuxconfig.org/how-to-make-iptables-rules-persi… --- ## [Anyone had experience with Teltonika NTP001 NTP Server](https://community.ntppool.org/t/anyone-had-experience-with-teltonika-ntp001-ntp-server/4119)
**Author:** [@NTPclock](https://community.ntppool.org/u/NTPclock)\ **Replies:** 16\ **Last updated:** [November 6, 2025, 1:54pm UTC](https://community.ntppool.org/t/anyone-had-experience-with-teltonika-ntp001-ntp-server/4119 "2025-11-06T13:54:33Z")
Anyone in the forum tried this server? It looks cheaper than competitors. --- ## [How does one do maintenance on a time server?](https://community.ntppool.org/t/how-does-one-do-maintenance-on-a-time-server/4128)
**Author:** [@errolt](https://community.ntppool.org/u/errolt)\ **Replies:** 6\ **Last updated:** [November 5, 2025, 8:05am UTC](https://community.ntppool.org/t/how-does-one-do-maintenance-on-a-time-server/4128 "2025-11-05T08:05:04Z")
How does one do maintenance on a time server, such as firewall upgrade/reboot? Does one remove the time server from the pool, wait a week(or a year according to the “add a server” page) for the traffic to go away, then … --- ## [A tool to help monitor pool DNS results](https://community.ntppool.org/t/a-tool-to-help-monitor-pool-dns-results/4123)
**Author:** [@gombadi](https://community.ntppool.org/u/gombadi)\ **Replies:** 5\ **Last updated:** [November 1, 2025, 7:30pm UTC](https://community.ntppool.org/t/a-tool-to-help-monitor-pool-dns-results/4123 "2025-11-01T19:30:04Z")
Hi All I have uploaded a tool I have been running over the last few months as it may be useful to others. You can run it from a number of locations over a period of time and gather the information into files that can… --- ## [Large-scale GPS interruption Effect on NTP Pool](https://community.ntppool.org/t/large-scale-gps-interruption-effect-on-ntp-pool/4118)
**Author:** [@Kets\_One](https://community.ntppool.org/u/Kets_One)\ **Replies:** 22\ **Last updated:** [October 30, 2025, 6:24pm UTC](https://community.ntppool.org/t/large-scale-gps-interruption-effect-on-ntp-pool/4118 "2025-10-30T18:24:39Z")
With the international tensions running high and correct time being of the essence for a correct functioning of the internet, i started to wonder what would happen during a large-scale disruption of the GPS signals. Sce… --- ## [Is my chrony.conf safe & good to use?](https://community.ntppool.org/t/is-my-chrony-conf-safe-good-to-use/4109)
**Author:** [@NTPclock](https://community.ntppool.org/u/NTPclock)\ **Replies:** 11\ **Last updated:** [October 29, 2025, 2:46pm UTC](https://community.ntppool.org/t/is-my-chrony-conf-safe-good-to-use/4109 "2025-10-29T14:46:51Z")
Hello; I use public pools here are my conf file for chrony; server time dot cloudflare dot com iburst nts server time dot google dotcom iburst nts pool ntp dot ubuntu dotcom iburst maxsources 4 pool pool dot ntp dot… --- ## [Best Rack Server Configurations for NTP Server Use](https://community.ntppool.org/t/best-rack-server-configurations-for-ntp-server-use/4120)
**Author:** [@arthurleo](https://community.ntppool.org/u/arthurleo)\ **Replies:** 6\ **Last updated:** [October 29, 2025, 2:30am UTC](https://community.ntppool.org/t/best-rack-server-configurations-for-ntp-server-use/4120 "2025-10-29T02:30:37Z")
Hi everyone, I’m planning to set up a rack server to contribute to the NTP pool and would love to get some input on the best configurations for a reliable and efficient NTP server. I know that NTP servers need to prior… --- ## [What NTP servers are you running?](https://community.ntppool.org/t/what-ntp-servers-are-you-running/3254)
**Author:** [@Kets\_One](https://community.ntppool.org/u/Kets_One)\ **Replies:** 70\ **Last updated:** [October 26, 2025, 8:13pm UTC](https://community.ntppool.org/t/what-ntp-servers-are-you-running/3254 "2025-10-26T20:13:17Z")
The other day I was wondering what type of type servers everyone donates to the pool. Wouldn’t it be nice to ‘show-off’ our respective servers? Or is this a bit too sensitive a piece of information (for a possible attack… --- ## [Does all zones serve US requests?](https://community.ntppool.org/t/does-all-zones-serve-us-requests/4106)
**Author:** [@errolt](https://community.ntppool.org/u/errolt)\ **Replies:** 39\ **Last updated:** [October 26, 2025, 3:10pm UTC](https://community.ntppool.org/t/does-all-zones-serve-us-requests/4106 "2025-10-26T15:10:02Z")
This might have been answered before, so please excuse the dumb question. A quick forum search didn’t have any answers. It has been raised in other threads that if there is even only one server in a zone then all traffi… --- ## [Server Management Pages Down?](https://community.ntppool.org/t/server-management-pages-down/4117)
**Author:** [@Kets\_One](https://community.ntppool.org/u/Kets_One)\ **Replies:** 2\ **Last updated:** [October 26, 2025, 1:05pm UTC](https://community.ntppool.org/t/server-management-pages-down/4117 "2025-10-26T13:05:22Z")
When trying to reach server management pages i’m getting the “# 503 Service Unavailable No server is available to handle this request” message. @ask Could you please investigate? --- ## [Using domain PTR vs Only IP?](https://community.ntppool.org/t/using-domain-ptr-vs-only-ip/4110)
**Author:** [@NTPclock](https://community.ntppool.org/u/NTPclock)\ **Replies:** 2\ **Last updated:** [October 24, 2025, 2:12pm UTC](https://community.ntppool.org/t/using-domain-ptr-vs-only-ip/4110 "2025-10-24T14:12:49Z")
Hello; NTP poll allows us to add only with ip for public servers. Why some servers have PTR records + a record? What is the difference between them\_? Thank you! --- ## [Hourly server overload?](https://community.ntppool.org/t/hourly-server-overload/4103)
**Author:** [@errolt](https://community.ntppool.org/u/errolt)\ **Replies:** 24\ **Last updated:** [October 20, 2025, 9:13am UTC](https://community.ntppool.org/t/hourly-server-overload/4103 "2025-10-20T09:13:48Z")
Hi All. I’m new here. I brought my first server up a week ago. And I see hourly, on the hour, “abuse” of my server. If, and that is a big if, I have set my appliance up correctly, then it can handle 40K requests per se… --- ## [General statistics questions](https://community.ntppool.org/t/general-statistics-questions/4105)
**Author:** [@hans-mayer](https://community.ntppool.org/u/hans-mayer)\ **Replies:** 18\ **Last updated:** [October 19, 2025, 8:26pm UTC](https://community.ntppool.org/t/general-statistics-questions/4105 "2025-10-19T20:26:33Z")
Dear All, since years I have some NTP servers in the AT pool for IPv6. As we changed the IP address I had to remove the old IPs and create new entries for the pool. This caused me to look into the statistics again. For… [Previous page](https://community.ntppool.org/c/server-operators/6.md?page=1) [Next page](https://community.ntppool.org/c/server-operators/6.md?page=3)