Red Hat Satellite 6 upgrade failing with error Procedures::Installer::Upgrade: Reverse DNS failed.

Issue

• Red Hat Satellite 6 upgrade failing with error Procedures::Installer::Upgrade: Reverse DNS failed:

Procedures::Installer::Upgrade: Reverse DNS failed. Looking up 11.22.33.44 gave xxx.example.com, expected to match satellite.example.com
Your system does not meet configuration criteria
                                     [FAIL]
Failed executing LANG=en_US.utf-8 satellite-installer --upgrade, exit status 20
--------------------------------------------------------------------------------
Scenario [Migration scripts to Satellite 6.5] failed.

The following steps ended up in failing state:

 [installer-upgrade]

Resolve the failed steps and rerun
the command. In case the failures are false positives,
use --whitelist="installer-upgrade"