I'm trying to setup new IPA server and when I run 'sudo su' I get prompted with password, which is fine. However, when I successfully type my password on a RHEL7 instance running FreeIPA version 4.6 I get a kerberos ticket as the logged-in user in "root-mode", but when I do the same in the newer IPA instance I do not get any kerberos ticket when in root.
How do I get kerberos ticket when I run 'sudo su'?