According to the documentation. https://lucene.apache.org/solr/guide/8_6/enabling-ssl.html
ZooKeeper does not support encrypted communication with clients like Solr. There are several related JIRA tickets where SSL support is being planned/worked on: ZOOKEEPER-235<https://issues.apache.org/jira/browse/ZOOKEEPER-235>; ZOOKEEPER-236<https://issues.apache.org/jira/browse/ZOOKEEPER-236>; ZOOKEEPER-1000<https://issues.apache.org/jira/browse/ZOOKEEPER-1000>; and ZOOKEEPER-2120<https://issues.apache.org/jira/browse/ZOOKEEPER-2120>. However three of those linked tickets are closed. Wondering if there is a more recent update on this and if it is possible now to encrypt between Solr and Zookeeper. Thanks, Mathew This email and the information contained herein is proprietary and confidential and subject to the Amdocs Email Terms of Service, which you may review at https://www.amdocs.com/about/email-terms-of-service <https://www.amdocs.com/about/email-terms-of-service>