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AD Authentication No Longer Works After Oracle Linux Upgrade from 7.x to 7.4 (Doc ID 2370649.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 7.4 and later
Linux x86-64

Symptoms

AD Authentication no longer works after system upgrade from 7.x to 7.4. The system was working fine before the upgrade and all other OL7.0-7.3 systems do not have this problem. Below error might be displayed under /var/log/messages after the upgrade to OL7.4.

You can see below error under the /var/log/messages file :

[sssd[krb5_child[13525]]]: KDC has no support for encryption type

Changes

Oracle Linux 7.x system was updated to 7.4.

Cause

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