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Update FAQ for duplicate host enrollment (#3698)

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Zach Wasserman 2022-01-14 09:58:56 -08:00 committed by GitHub
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docs/02-Deploying/FAQ.md
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@ -134,8 +134,20 @@ You can deploy MySQL or Maria any way you want. We recommend using managed/hoste
## What is duplicate enrollment and how do I fix it?
Duplicate host enrollment is when more than one host enrolls in Fleet using the same identifier (hardware UUID or osquery generated UUID). This can be caused by cloning a VM Image with an already enrolled
osquery client. To resolve the issues, it's advised to configure `--osquery_host_identifier` to `uuid`, and then delete the single host record for that whole set of hosts in the Fleet UI. You can find more information about
Duplicate host enrollment is when more than one host enrolls in Fleet using the same identifier
(hardware UUID or osquery generated UUID).
Typically, this is caused by cloning a VM Image with an already enrolled
osquery client, which results in duplicate osquery generated UUIDs. To resolve this issue, it is
advised to configure `--osquery_host_identifier=uuid` (which will use the hardware UUID), and then
delete the associated host in the Fleet UI.
In rare instances, VM Hypervisors have been seen to duplicate hardware UUIDs. When this happens,
using `--osquery_host_identifier=uuid` will not resolve the duplicate enrollment problem. Sometimes
the problem can be resolved by setting `--osquery_host_identifier=instance` (which will use the
osquery generated UUID), and then delete the associated host in the Fleet UI.
Find more information about
[host identifiers here](./03-Configuration.md#osquery_host_identifier).
## How long are osquery enroll secrets valid?