https://community.cloudera.com/t5/Support-Questions/Knox-Response-status-401/m-p/231775#M193618 <P>can you correct the user search base seems to be incorrect.<BR />Refer : <A href="https://cwiki.apache.org/confluence/display/KNOX/Using+Apache+Knox+with+ActiveDirectory">Using Apache Knox with ActiveDirector</A></P><PRE> &lt;param&gt; &lt;name&gt;main.ldapRealm.userSearchBase&lt;/name&gt; &lt;value&gt;Users,OU=Domain Users &amp; Groups,DC=ragaca,DC=com&lt;/value&gt; &lt;/param&gt;</PRE> Sat, 06 Jan 2018 11:33:55 GMT pbhagade 2018-01-06T11:33:55Z