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Do some initial Checks :

• Login as “ranger” user: 

      If ranger user not found then create it i.e. useradd ranger

      E.g :  su - ranger

• Check for HTTP Principal

> kinit -kt <HTTP keytab path> HTTP/<FQDN_OF_Ranger_Admin_Cluster>@<REALM>

 E.g : kinit -kt /etc/security/keytabs/spnego.service.keytab HTTP/mp-ranger-0703-3.novalocal@EXAMPLE.COM

 (After above command there should not be any error u can check using “klist” whether the above command was successful)

            > kdestroy (Please don't miss kdestroy after above step)

For Ranger Admin:

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• Create rangeradmin/<FQDN of Ranger Admin>@<REALM>

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