The data center light time synchronisation » History » Version 1
Nico Schottelius, 02/06/2021 06:31 PM
| 1 | 1 | Nico Schottelius | h1. The data center light time synchronisation |
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| 3 | h2. Architecture |
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| 5 | * We use 3 nodes per data center that use 2.pool.ntp.org (this pool is IPv6 enabled) as a source |
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| 6 | ** Usually this is based on APUs |
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| 7 | * All other nodes use ntp.placeX.ungleich.ch as a time source |
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| 8 | * All nodes have chronyd installed and running |
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| 9 | ** ntp seems to be unreliable |
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| 10 | ** ntpdate does not exist in alpine linux |
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| 11 | ** chrony exists on alpine/debian/devuan/ubuntu |
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| 13 | Due to network firewalls, ntp.placeX.ungleich.ch is only reachable from the server network and not for public usage. |
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| 15 | h2. Configuration |
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| 17 | * We use the __dcl_ntp cdist type |