Add the following to the $HBASE_CONF_DIR/hbase-site.xml file for every REST gateway:

    <property>
      <name>hbase.rest.keytab.file</name>
      <value>$KEYTAB</value>
    </property>
    <property>
      <name>hbase.rest.kerberos.principal</name>
      <value>$USER/_HOST@HADOOP.LOCALDOMAIN</value>
    </property>
    

Substitute the appropriate credential and keytab for $USER and $KEYTAB respectively.

The REST gateway will authenticate with HBase using the supplied credential. No authentication will be performed by the REST gateway itself. All client access via the REST gateway will use the REST gateway's credential and have its privilege.