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55 lines
2.2 KiB
Markdown
55 lines
2.2 KiB
Markdown
# Configuring SNTP Servers in Windows terminal
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```
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w32tm /config /syncfromflags:manual /manualpeerlist:"time.cloudflare.com nts.netnod.se time.mikes.fi 0.pool.ntp.org 1.pool.ntp.org 2.pool.ntp.org 3.pool.ntp.org"
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w32tm /resync
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w32tm /query /peers
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```
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* The list is space separated NTP servers, while I think Windows uses SNTP instead
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of NTP.
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* `/resync` may sync current time, but is also required for the GUI
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(Windows + I, Date & time) and following command to get aware of peers.
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* Shows where time is synced from and statistics.
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* There is also `net time` to sync, I am unsure of the differences while
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that may be blocked while the second keeps working. It may also not
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show all the peers, just the primary one, while `w32tm` is more verbose
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and has all of them.
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## Variations
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Variations of the timeserver setting command to be kept at hand
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Note: `time.cloudflare.com` and `nts.netnod.se` probably work everywhere and
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I am keeping the second at hand in hopes of Windows implementing support for
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NTS. Additionally Sweden is a neighbouring country and thus doesn't seem
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too bad location for an NTP server.
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### Elisa
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Finnish WISP that I seem to often be a customer of.
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```
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w32tm /config /syncfromflags:manual /manualpeerlist:"time.cloudflare.com nts.netnod.se ntp1.kolumbus.fi ntp2.kolumbus.fi ntp.saunalahti.fi time.mikes.fi pool.ntp.org"
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```
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* https://elisa.fi/asiakaspalvelu/ohje/tiedonsiirtoportit-porttiohjaukset-palvelimet/
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## Information about servers
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* https://www.cloudflare.com/time/
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* https://www.netnod.se/nts/network-time-security
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* https://www.vttresearch.com/fi/palvelut/suomen-aika-ntp-palvelu#julkinen
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* https://www.ntppool.org/use.html
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* Also mentions the syntax for multiple servers, but considering this Elisa
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list has so many servers I am only picking one pool address just in case
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the others somehow fail.
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## Additional reading
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* Above links
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* https://jasoncoltrin.com/2018/08/02/how-to-set-clock-time-on-ad-domain-controller-and-sync-windows-clients/
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* this file might not exist without this post, while it doesn't mention
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multiple servers, uses `time.windows.com` and I am yet to actually touch
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NTP on Windows Server environment.
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