By default, communication between the repository and Solr is protected by SSL with mutual authentication. Both the repository and Solr have their own standard public/private key pair. To secure the two-way communication between the repository and Solr, you must generate your own keys.
Note: For security reasons, you must generate a new set of keys to secure the
Solr communication and access to the Solr Admin Console. Note: The Admin
Console is only available when you are using Alfresco Content Services
Enterprise.
For more information, see Configure using the Admin Console and Secure keys.