https://community.cloudera.com/t5/Support-Questions/Nifi-1-1-site-to-site-permissions-are-disabled-within-the/m-p/224586#M186450 <P><A rel="user" href="https://community.cloudera.com/users/78176/xaviercoudre.html" nodeid="78176" target="_blank">@Xavier COUDRE </A> </P><P>Couple things here....</P><P>1. None of the components in NiFi (processors, remote process groups, ports, etc...) are running as the user who is authenticated in to the NiFi UI. So authorizing users on input/output ports will have no affect here. </P><P>2. The source NiFi/MiNIFi must be configured with SSL certificates. NiFi's Site-To-Site protocol uses SSL to authenticate between NiFi instances.</P><P>3. Your screenshot below shows you authorizing what appears to be a user and not the source NiFi instance(s) to a Input port on the root canvas level. But did you also authorize the source NiFi instance(s) for the "GLOBAL" "retrieve site-to-site details" policy:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="72473-screen-shot-2018-04-26-at-83852-am.png" style="width: 223px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/15491i829059AFDA92FAA9/image-size/medium?v=v2&amp;px=400" role="button" title="72473-screen-shot-2018-04-26-at-83852-am.png" alt="72473-screen-shot-2018-04-26-at-83852-am.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="72474-screen-shot-2018-04-26-at-83953-am.png" style="width: 290px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/15492i45A0429F23C5E07E/image-size/medium?v=v2&amp;px=400" role="button" title="72474-screen-shot-2018-04-26-at-83953-am.png" alt="72474-screen-shot-2018-04-26-at-83953-am.png" /></span></P><P>As you can see by the above, I authorized my 3 NiFi instances in my cluster to retrieve site-to-site details.</P><P>-</P><P>And then on my input port itself, I authorized my 3 NiFi instances access to the input port:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="72475-screen-shot-2018-04-26-at-84258-am.png" style="width: 620px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/15493i51FC06868E0F8763/image-size/medium?v=v2&amp;px=400" role="button" title="72475-screen-shot-2018-04-26-at-84258-am.png" alt="72475-screen-shot-2018-04-26-at-84258-am.png" /></span></P><P>-</P><P>Hope this helps,</P><P>Matt</P> Sun, 18 Aug 2019 01:42:50 GMT MattWho 2019-08-18T01:42:50Z