anchor.diff:  `-updateIncludeFileOnly`::
   When *true*, only the settings in `bin/solr.in.sh` or `bin\solr.in.cmd` will be updated, and `security.json` will not be created.
   
  -// TODO 6.6 clarify when this is required
   `-z`::
  -Defines the ZooKeeper connect string.
  +Defines the ZooKeeper connect string. This is useful if you want to enable authentication before all your Solr nodes have come up.
   
   `-d`::
  -Defines the Solr server directory, by default `$SOLR_HOME/server`. It is not common to need to override the default.
  +Defines the Solr server directory, by default `$SOLR_HOME/server`. It is not common to need to override the default, and is only needed if you have customized the `$SOLR_HOME` directory path.
   
   `-s`::
  -Defines the location of `solr.solr.home`, which by default is `server/solr`. If you have multiple instances of Solr on the same host, you likely need to define this.
  +Defines the location of `solr.solr.home`, which by default is `server/solr`. If you have multiple instances of Solr on the same host, or if you have customized the `$SOLR_HOME` directory path, you likely need to define this.
   
   === Disabling Basic Authentication
   
  
positive.code: 
  The `bin/solr auth enable` command makes several changes to enable Basic Authentication:
  
  * Creates a `security.json` file and, if using SolrCloud, uploads it to ZooKeeper. The `security.json` file will look similar to:
  +
  [source,json]
  ----
  
negative.code: 
  The `bin/solr` script allows enabling or disabling Basic Authentication, allowing you to configure authentication from the command line.
  
  Currently, this script only enables Basic Authentication, and is only available when using SolrCloud mode.
  
  === Enabling Basic Authentication
  
  