Create rangersync/<FQDN_of_Ranger_Admin>@<REALM>:

> kadmin.local
> addprinc -randkey rangersync/<FQDN_of_Ranger_Usersync>
> xst -k /etc/security/keytabs/rangerusersync.keytab
> exit

Verify that rangersync created principal:

> kinit -kt  /etc/security/keytabs/rangersync.keytab rangersync/<FQDN_of_Ranger_usersync>@<REALM>

After using the kinit command, there should not be any errors. You can use the klist command to verify that your kinit command was successful.

Use the kdestroy command to destroy your active Kerberos authorization tickets by overwriting and deleting the credentials cache that contains them:

kdestroy