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Updrading vshpere 5.0 Certificates - Are communications between ESXi and vCenter disrupted while vCenter is updated?

We are updating vCenter certificates (for vShpere 5.0) as per KB 2015383:
Implementing CA signed SSL certificates with vSphere 5.0

We are ready to intsall a cetrtificate for vCenter server (using OpenSSL and local Microsoft CA). Please confirm implications of installing certificate on vCenter server before Step 3 is completed .i.e Configuring CA signed SSL certificates with ESXi 5.x hosts,(2015499).

Will communication between ESXi 5.0 hosts cease with vCenter while certificate is installed on vcenter and not yet on conducted on hosts, or is this not an issue? We need to know whether it is is manadatory to install the ESXi hosts certificates 'immeditately' after vcenter certificate installation to ensure continued functionality of HA etc..
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Bethanie
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Bethanie
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BethanieAuthor Commented:
We require a response asap on this pls..
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
No it is not manadatory to install the ESXi hosts certificates.

Only if you want to replace the VMware self signed certificates.

Now that you have already added the hosts to vCenter, by replacing the certificates, will break the "trust" between vCenter and the host, so you will need to remove the host from vCenter, and re-add, once you have added new certificates.

This should not cause any issues to HA or other vCenter functionaility.
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BethanieAuthor Commented:
Many thanks..
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