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#1 2021-01-19 22:31:03

admin
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Registered: 2017-04-21
Posts: 1,779

(c)XSIBackup-DC Key is generated with a zeroed out MAC address

This isn't really an (c)XSIBackup bug, but some bug in (c)ESXi. We have been able to detect it in (c)ESXi 6.7.0. It may be present in other editions/ builds as well though.

The issue is triggered by (c)ESXi returning an error like the following:

IO error: [Errno -2] Name or service not known

When simply invoking esxcli.

It seems clear that due to this bug systems without a proper DNS server configurations fail even at tasks which have nothing to do with DNS, but that for some reason try to perform a resolve operation prior to executing esxcli, and not only that but fail with an unrecoverable error.

Workaround
The problem is easily solved by adding some DNS server.

Many sysadmins like not to configure DNS for their ESXi hosts. Still, at least for the request.key and subsequent license.key generation, you will need to enable it. We are sorry about this inconvenience, it's not our fault in this case though.

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