I have solved the problem. It was simple issue but all new to this and none of the examples online show this fix. First you need to have a keystore and there is a link above on creating one of those. Then this is what was missed you need to download the certificate from the site providing the data. echo -n | openssl s_client -connect newsapi.org:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /tmp/examplecert.crt Then import to your keystore sudo keytool -import -keystore truststore.jks -file /tmp/examplecer.crt -alias <sitename> Then set up the Control Service Device for the StandardSSLContextService ... View more

Please check out below KB articles https://community.hortonworks.com/articles/46258/iot-example-in-apache-nifi-consuming-and-producing.html https://community.hortonworks.com/articles/178747/mqtt-with-apache-nifi.html Note: Please upvote and accept this answer if you found it useful ... View more