Added by Stephen Benjamin over 4 years ago.
Updated over 4 years ago.
Is duplicate of
Added by Stephen Benjamin over 4 years ago
Fixes #22291 - update DNS check for broken Rubies
Older rubies don't correctly reverse resolve IPv6, causinga potential issue when a host has a IPv6 forward record.
Copied from katelo-installer issue #22173.
Applied in changeset ff03034a8fa87b52fbe1ba1a57be9dd8fedfad2e.
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