# Pool Development **URL:** https://community.ntppool.org/c/dev/5.md?page=1 [Latest](https://community.ntppool.org/latest.md) · [Categories](https://community.ntppool.org/categories.md) · [Tags](https://community.ntppool.org/tags.md) **Page:** 2 --- ## [NTPpool.org down?](https://community.ntppool.org/t/ntppool-org-down/3814)
**Author:** [@DeveloperDan](https://community.ntppool.org/u/DeveloperDan)\ **Replies:** 3\ **Last updated:** [April 5, 2025, 5:25pm UTC](https://community.ntppool.org/t/ntppool-org-down/3814 "2025-04-05T17:25:21Z")
I’m getting ‘503 Service Unavailable’ for all my links on NTPpool.org --- ## [Issues with some pool backend systems?](https://community.ntppool.org/t/issues-with-some-pool-backend-systems/3775)
**Author:** [@MagicNTP](https://community.ntppool.org/u/MagicNTP)\ **Replies:** 13\ **Last updated:** [February 24, 2025, 9:35am UTC](https://community.ntppool.org/t/issues-with-some-pool-backend-systems/3775 "2025-02-24T09:35:17Z")
Is it just me, or are others seeing symptoms as well that seem to indicate issues with some pool backend systems? @Ask, seems some APIs don’t return proper data, e.g., for the offset/scores graphs and client distributio… --- ## [Suggestions for API features?](https://community.ntppool.org/t/suggestions-for-api-features/3765)
**Author:** [@ask](https://community.ntppool.org/u/ask)\ **Replies:** 4\ **Last updated:** [February 3, 2025, 8:22pm UTC](https://community.ntppool.org/t/suggestions-for-api-features/3765 "2025-02-03T20:22:41Z")
As part of some work I have been doing to improve the workflows for managing monitors the system now has facilities for authentication with APi keys. Someone recently suggested it’d be nice to have an api for changing “… --- ## [Official NTP Servers in the pool](https://community.ntppool.org/t/official-ntp-servers-in-the-pool/3750)
**Author:** [@ebahapo](https://community.ntppool.org/u/ebahapo)\ **Replies:** 8\ **Last updated:** [January 20, 2025, 4:46pm UTC](https://community.ntppool.org/t/official-ntp-servers-in-the-pool/3750 "2025-01-20T16:46:27Z")
Many countries provide an official, legal time through their own NTP servers to be used inside their jurisdictions, oftentimes open to the general public, but sometimes only by permission (using keys). A few of such off… --- ## [Scores gone on beta site](https://community.ntppool.org/t/scores-gone-on-beta-site/3721)
**Author:** [@avij](https://community.ntppool.org/u/avij)\ **Replies:** 2\ **Last updated:** [January 3, 2025, 1:24pm UTC](https://community.ntppool.org/t/scores-gone-on-beta-site/3721 "2025-01-03T13:24:11Z")
All my servers on the beta site show blank score graphs and the CSV log links show only the header. I suppose it’s “work in progress”, but here’s a heads up in any case. --- ## [Website updates](https://community.ntppool.org/t/website-updates/3714)
**Author:** [@ask](https://community.ntppool.org/u/ask)\ **Replies:** 0\ **Last updated:** [December 30, 2024, 2:15am UTC](https://community.ntppool.org/t/website-updates/3714 "2024-12-30T02:15:55Z")
I’ve been working on an update to the monitoring system to make the monitors easier and safe to manage at scale. One of the “side quests” in that work was fixing up some of the manage.ntppool.org website infrastructure … --- ## [Monitor in South America?](https://community.ntppool.org/t/monitor-in-south-america/3688)
**Author:** [@r00t](https://community.ntppool.org/u/r00t)\ **Replies:** 6\ **Last updated:** [December 16, 2024, 8:46pm UTC](https://community.ntppool.org/t/monitor-in-south-america/3688 "2024-12-16T20:46:03Z")
What is required to run a monitor in South America and are there any plans for that? --- ## [Regulating the load of the NTP servers](https://community.ntppool.org/t/regulating-the-load-of-the-ntp-servers/3614)
**Author:** [@NTPman](https://community.ntppool.org/u/NTPman)\ **Replies:** 15\ **Last updated:** [November 27, 2024, 2:41pm UTC](https://community.ntppool.org/t/regulating-the-load-of-the-ntp-servers/3614 "2024-11-27T14:41:19Z")
Got you. How can this problem be addressed? …, should the distribution logic be modified? What do you suggest? There is a need for regulating the load an NTP server is receiving. And not relative to other NTP server… --- ## [Load feedback from the NTP servers to the pool infrastructure?](https://community.ntppool.org/t/load-feedback-from-the-ntp-servers-to-the-pool-infrastructure/2888)
**Author:** [@NTPman](https://community.ntppool.org/u/NTPman)\ **Replies:** 8\ **Last updated:** [November 17, 2024, 7:44pm UTC](https://community.ntppool.org/t/load-feedback-from-the-ntp-servers-to-the-pool-infrastructure/2888 "2024-11-17T19:44:58Z")
I think it is a valid concern. That made me thinking of the following: What if the NTP servers would be able to report back the actual QPS value to the pool system? That creates regulatory closed loop and permits the … --- ## [Minor questions from observations of new monitoring system](https://community.ntppool.org/t/minor-questions-from-observations-of-new-monitoring-system/3019)
**Author:** [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Replies:** 11\ **Last updated:** [September 1, 2023, 8:56am UTC](https://community.ntppool.org/t/minor-questions-from-observations-of-new-monitoring-system/3019 "2023-09-01T08:56:57Z")
I understand the new monitoring system is still evolving. Seeing some behavior, I am just wondering if that behavior is as intended. I endeavored to follow the discussions, but apologize in case I missed that an aspect h… --- ## [Improving NTP Pool Server Selection Accuracy for Better Regional Performance](https://community.ntppool.org/t/improving-ntp-pool-server-selection-accuracy-for-better-regional-performance/3503)
**Author:** [@rosshaden](https://community.ntppool.org/u/rosshaden)\ **Replies:** 4\ **Last updated:** [November 8, 2024, 11:35am UTC](https://community.ntppool.org/t/improving-ntp-pool-server-selection-accuracy-for-better-regional-performance/3503 "2024-11-08T11:35:39Z")
Hello, I am facing a challenge with how NTP Pool servers are selected for clients. :upside\_down\_face: It appears that clients are sometimes directed to servers that are geographically distant or have higher latency; e… --- ## ["Measuring and Visualizing DNS Watersheds"](https://community.ntppool.org/t/measuring-and-visualizing-dns-watersheds/3586)
**Author:** [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Replies:** 0\ **Last updated:** [October 31, 2024, 10:25am UTC](https://community.ntppool.org/t/measuring-and-visualizing-dns-watersheds/3586 "2024-10-31T10:25:42Z")
As discussed in various other threads, when a client accesses the global pool zone, the pool tries to determine the location of the client at a country granularity, and will then provide IP addresses of servers registere… --- ## [Offset graph Y axis blown out by unsynced response](https://community.ntppool.org/t/offset-graph-y-axis-blown-out-by-unsynced-response/3047)
**Author:** [@davehart](https://community.ntppool.org/u/davehart)\ **Replies:** 2\ **Last updated:** [September 26, 2024, 12:26am UTC](https://community.ntppool.org/t/offset-graph-y-axis-blown-out-by-unsynced-response/3047 "2024-09-26T00:26:07Z")
I noticed the graph for robin.davehart.net had the offset Y axis blown out by a 765ms offset reported by a monitor after a restart, when ntpd had not yet synced and was properly reporting as much with leap=011 (3). It s… --- ## [Minor improvement suggestion for pool DNS selection](https://community.ntppool.org/t/minor-improvement-suggestion-for-pool-dns-selection/3493)
**Author:** [@davehart](https://community.ntppool.org/u/davehart)\ **Replies:** 10\ **Last updated:** [September 19, 2024, 6:35am UTC](https://community.ntppool.org/t/minor-improvement-suggestion-for-pool-dns-selection/3493 "2024-09-19T06:35:32Z")
Right now, 2.\*.pool.ntp.org domains sometimes return both IPv4 and IPv6 addresses of the same server. I realize the internal implementation is nearly entirely name-agnostic, but it would be spiffy if this were avoided a… --- ## [Monitors mishandling empty responses](https://community.ntppool.org/t/monitors-mishandling-empty-responses/3490)
**Author:** [@davehart](https://community.ntppool.org/u/davehart)\ **Replies:** 2\ **Last updated:** [August 26, 2024, 12:05pm UTC](https://community.ntppool.org/t/monitors-mishandling-empty-responses/3490 "2024-08-26T12:05:25Z")
@ask please take a look at this discussion: It appears when a NTP server responds with no UDP payload it’s treated as a perfect 0 offset and included in the pool. --- ## [Gradually add/remove server to/from pool in parallel to score increase/decrease](https://community.ntppool.org/t/gradually-add-remove-server-to-from-pool-in-parallel-to-score-increase-decrease/3366)
**Author:** [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Replies:** 78\ **Last updated:** [August 22, 2024, 7:27pm UTC](https://community.ntppool.org/t/gradually-add-remove-server-to-from-pool-in-parallel-to-score-increase-decrease/3366 "2024-08-22T19:27:20Z")
Hi, I was wondering whether it would be possible, as well as make sense, to have the pool gradually add/remove a server to/from the pool (i.e., scale the inclusion in DNS responses) in parallel to the server’s score inc… --- ## [Issues downloading user information data](https://community.ntppool.org/t/issues-downloading-user-information-data/3471)
**Author:** [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Replies:** 2\ **Last updated:** [August 8, 2024, 8:51am UTC](https://community.ntppool.org/t/issues-downloading-user-information-data/3471 "2024-08-08T08:51:29Z")
Since a few days, I am having trouble downloading user information from the pool system. I can request for the system to collate the relevant information, but when it is done assembling the info, and offering me a link t… --- ## [TXT records in pool.ntp.org](https://community.ntppool.org/t/txt-records-in-pool-ntp-org/3465)
**Author:** [@marco.davids](https://community.ntppool.org/u/marco.davids)\ **Replies:** 3\ **Last updated:** [July 25, 2024, 6:34am UTC](https://community.ntppool.org/t/txt-records-in-pool-ntp-org/3465 "2024-07-25T06:34:49Z")
I was hoping for some interesting information in TXT records of vendor zones, like ‘debian.pool.ntp.org’, but instead found this: ;; ANSWER SECTION: pool.ntp.org. 118 IN TXT "\_globalsign-domain-verification=mVYWxIl-2ab… --- ## [How to synchronize time between two devices on a local network using NTPD, with one device serving as both client and server on separate interfaces?](https://community.ntppool.org/t/how-to-synchronize-time-between-two-devices-on-a-local-network-using-ntpd-with-one-device-serving-as-both-client-and-server-on-separate-interfaces/3228)
**Author:** [@BalajiG](https://community.ntppool.org/u/BalajiG)\ **Replies:** 11\ **Last updated:** [July 21, 2024, 5:22pm UTC](https://community.ntppool.org/t/how-to-synchronize-time-between-two-devices-on-a-local-network-using-ntpd-with-one-device-serving-as-both-client-and-server-on-separate-interfaces/3228 "2024-07-21T17:22:16Z")
I am using STM32MP1 based two devices which runs on Yocto platform(Kernel version 4.19.9). Among them one has two network interfaces (wlan0, wlan1) where wlan0 is used for connecting with internet servers & wlan1 will be… --- ## [Server deletion only possible every third day](https://community.ntppool.org/t/server-deletion-only-possible-every-third-day/3399)
**Author:** [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Replies:** 0\ **Last updated:** [May 25, 2024, 9:17am UTC](https://community.ntppool.org/t/server-deletion-only-possible-every-third-day/3399 "2024-05-25T09:17:36Z")
More a curiosity than an issue, but it seems as if starting with dates in June, the deletion of a server can only be scheduled to happen every third day. E.g., June 1, June 4, June 7 etc., but not in between. Also, sche… --- ## [Recentmedian scoring bug](https://community.ntppool.org/t/recentmedian-scoring-bug/3395)
**Author:** [@davehart](https://community.ntppool.org/u/davehart)\ **Replies:** 0\ **Last updated:** [May 24, 2024, 10:39am UTC](https://community.ntppool.org/t/recentmedian-scoring-bug/3395 "2024-05-24T10:39:58Z")
I think I’ve found a bug in the scoring visible only in the unusual case of a monitor and a monitored server being behind the same misbehaving firewall. For some reason, this system is unreachable from the internet desp… --- ## [RFC for ntp server on physical machine](https://community.ntppool.org/t/rfc-for-ntp-server-on-physical-machine/3322)
**Author:** [@RobertGamma](https://community.ntppool.org/u/RobertGamma)\ **Replies:** 7\ **Last updated:** [May 4, 2024, 10:48pm UTC](https://community.ntppool.org/t/rfc-for-ntp-server-on-physical-machine/3322 "2024-05-04T22:48:15Z")
I’m not able to find official document which suggests to not implement ntp server using virtual machine; I’d like to know reasons but specially what RFC shows this recommendation. --- ## [Adding New Monitor](https://community.ntppool.org/t/adding-new-monitor/3349)
**Author:** [@ncryptd](https://community.ntppool.org/u/ncryptd)\ **Replies:** 18\ **Last updated:** [April 17, 2024, 9:16am UTC](https://community.ntppool.org/t/adding-new-monitor/3349 "2024-04-17T09:16:16Z")
Hello, We currently run a number of dual-stack NTP servers. However, we regularly see issues in the monitoring of 2 of these. As most of the monitoring servers are in the US/EU, how can we sponsor a monitor server in … --- ## [Server verification beta](https://community.ntppool.org/t/server-verification-beta/3119)
**Author:** [@ask](https://community.ntppool.org/u/ask)\ **Replies:** 77\ **Last updated:** [March 30, 2024, 3:59pm UTC](https://community.ntppool.org/t/server-verification-beta/3119 "2024-03-30T15:59:08Z")
Hi everyone, The beta system now has a verification feature ready for testing. Please try it out! It doesn’t do much yet other than set a flag in the database, but assuming it’s reasonable to work with it can go on the … --- ## [Setting up a pool development environment](https://community.ntppool.org/t/setting-up-a-pool-development-environment/3285)
**Author:** [@Sebhoster](https://community.ntppool.org/u/Sebhoster)\ **Replies:** 4\ **Last updated:** [March 17, 2024, 10:48pm UTC](https://community.ntppool.org/t/setting-up-a-pool-development-environment/3285 "2024-03-17T22:48:11Z")
Hi, I’m currently trying to set up a development environment of the NTP Pool. My aim is to have a working copy running on my infrastructure to play around with, and to eventually be able to make and test changes of the P… --- ## [Drop in number of checks per minute by monitoring probes](https://community.ntppool.org/t/drop-in-number-of-checks-per-minute-by-monitoring-probes/3269)
**Author:** [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Replies:** 3\ **Last updated:** [March 10, 2024, 5:27am UTC](https://community.ntppool.org/t/drop-in-number-of-checks-per-minute-by-monitoring-probes/3269 "2024-03-10T05:27:06Z")
I note that the number of monitoring probes seems to have dropped slightly since the early hours of April 4. At the same time, the number of checks per minute performed by the monitoring probes seems to have dropped to a… --- ## [Where do I get the dev-values.yaml for a dev environment](https://community.ntppool.org/t/where-do-i-get-the-dev-values-yaml-for-a-dev-environment/3243)
**Author:** [@Sebhoster](https://community.ntppool.org/u/Sebhoster)\ **Replies:** 0\ **Last updated:** [February 14, 2024, 12:31am UTC](https://community.ntppool.org/t/where-do-i-get-the-dev-values-yaml-for-a-dev-environment/3243 "2024-02-14T00:31:13Z")
I am currently trying to set up a development instance of the ntp pool on a VPS. I have already installed kubernetes and helm, and I found this command here: helm -n ntpdev install --wait ntppool -f dev-values.yaml ntpp… --- ## [Selecting "3 Gbit" netspeed gets me "100 Mbit" instead](https://community.ntppool.org/t/selecting-3-gbit-netspeed-gets-me-100-mbit-instead/3130)
**Author:** [@bjh21](https://community.ntppool.org/u/bjh21)\ **Replies:** 8\ **Last updated:** [February 7, 2024, 8:00am UTC](https://community.ntppool.org/t/selecting-3-gbit-netspeed-gets-me-100-mbit-instead/3130 "2024-02-07T08:00:04Z")
I noticed more netspeed options appeared once I’d verified my servers, so I tried increasing that setting for some of them. Choosing “2 Gbit” seems to work as expected, but if I choose “3 Gbit” (as I just did for 2a05:b4… --- ## [Happy 2024 everyone!](https://community.ntppool.org/t/happy-2024-everyone/3186)
**Author:** [@marco.davids](https://community.ntppool.org/u/marco.davids)\ **Replies:** 1\ **Last updated:** [January 3, 2024, 12:29pm UTC](https://community.ntppool.org/t/happy-2024-everyone/3186 "2024-01-03T12:29:25Z")
Happy New Year everyone! I have a feeling this is going to be a good year. A year where the pool-domains all will get an AAAA-record, instead of just 2.pool.ntp.org. --- ## [Metrics error: Unexpected token '\<', "\\ **Author:** [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Replies:** 8\ **Last updated:** [December 22, 2023, 12:32pm UTC](https://community.ntppool.org/t/metrics-error-unexpected-token-html-bod-is-not-valid-json/3154 "2023-12-22T12:32:46Z") Every now and then, I get the following message instead of the expected statistics in the “Client distribution” section of a server’s details page (e.g., this server as of right now): Metrics error: Unexpected token ‘\<’… [Previous page](https://community.ntppool.org/c/dev/5.md) [Next page](https://community.ntppool.org/c/dev/5.md?page=2)