{"id":18689251,"url":"https://github.com/endail/aus-ntps","last_synced_at":"2025-11-08T05:30:37.972Z","repository":{"id":251401093,"uuid":"820366935","full_name":"endail/aus-ntps","owner":"endail","description":"A collection of Australian NTP servers","archived":false,"fork":false,"pushed_at":"2024-08-02T16:01:13.000Z","size":153,"stargazers_count":0,"open_issues_count":5,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2024-12-28T01:40:12.600Z","etag":null,"topics":["australia","australian","australian-addresses","ntp","ntp-client","ntp-server","ntp-servers","ntpd","ntpdate","ntpdig","ntpsec"],"latest_commit_sha":null,"homepage":"","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/endail.png","metadata":{"files":{"readme":"README-header.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-06-26T10:26:13.000Z","updated_at":"2024-08-02T16:01:17.000Z","dependencies_parsed_at":null,"dependency_job_id":"60dc042d-a959-47b5-a463-0d0a5c299df3","html_url":"https://github.com/endail/aus-ntps","commit_stats":null,"previous_names":["endail/aus-ntps"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/endail%2Faus-ntps","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/endail%2Faus-ntps/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/endail%2Faus-ntps/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/endail%2Faus-ntps/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/endail","download_url":"https://codeload.github.com/endail/aus-ntps/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":239550002,"owners_count":19657538,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["australia","australian","australian-addresses","ntp","ntp-client","ntp-server","ntp-servers","ntpd","ntpdate","ntpdig","ntpsec"],"created_at":"2024-11-07T10:41:53.701Z","updated_at":"2025-11-08T05:30:37.942Z","avatar_url":"https://github.com/endail.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# aus-ntps\n\nA collection of Australian NTP servers\n\nEach table contains the following information:\n\n- **Endpoint**: the hostname (or IP address) and port number of the NTP server being queried\n- **IP Address**: the IP address of the host\n- **Version**: the NTP version of the NTP server\n- **Stratum**: the reported [stratum value](https://en.wikipedia.org/wiki/Network_Time_Protocol#Clock_strata) of the NTP server\n- **Leap**: the reported leap indictor of the NTP server\n\nAn endpoint may have zero or more IP address, version, stratum, and leap combinations. An endpoint with no entries indicates that a DNS record exists for the host, but that no NTP server exists or it was otherwise inaccessible by the Python script. For example, Aussie Broadband's NTP servers [only respond to customers](https://www.aussiebroadband.com.au/help-centre/internet/ntp-settings/). You may find it useful to test these endpoints yourself for this reason, particularly if the subdomain name of the endpoint begins with `ntp`, `time`, or one of the other [predefined names](src/NtpDnsProbeDiscoveryService.py#L14-L40). Further details about the information above can be obtained [here](https://docs.ntpsec.org/latest/ntpdig.html).\n\nYou should use the endpoint when configuring an NTP client or server. For example:\n\n```conf\n# /etc/ntpsec/ntp.conf\n...\nserver tic.ntp.telstra.net iburst\n```\n\n## Useful Resources\n\n- If you are looking for the Australian Government's NTP servers, please be aware they are only available to [registered users](https://www.industry.gov.au/national-measurement-institute/physical-measurement-services/time-and-frequency-services).\n\n- Some ISPs may drop NTP traffic if the [outbound source port is port 123](https://docstore.mik.ua/orelly/networking_2ndEd/fire/ch22_05.htm) (well known NTP port number) and restrict access to some predefined ISP-controlled NTP servers. You may be able to bypass this restriction by altering the source port. One method is to add the [following iptables rule](https://superuser.com/a/1380558) to your router.\n\n```shell\niptables -t nat -I POSTROUTING -p udp -m udp --sport 123 -j MASQUERADE --to-ports 49152-65535\n```\n\n## Servers\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fendail%2Faus-ntps","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fendail%2Faus-ntps","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fendail%2Faus-ntps/lists"}