# Commit to Apache Cassandra
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This section walks you through making the connections to an Apache Cassandra cluster to commit the data model created or edited with NoSQL Workbench.

**Note**  
Only data models that have been created with `SimpleStrategy` or `NetworkTopologyStrategy` can be committed to Apache Cassandra clusters. To change the replication strategy, edit the keyspace in the data modeler.

1. 
   + **User name** – Enter the user name if authentication is enabled on the cluster.
   + **Password** – Enter the password if authentication is enabled on the cluster.
   + **Contact points** – Enter the contact points.
   + **Local data center** – Enter the name of the local data center.
   + **Port** – The connection uses port 9042.

1. Choose **Commit** to update the Apache Cassandra cluster with the data model.

![\[Console screenshot that shows a connection to Apache Cassandra.\]](http://docs.aws.amazon.com/keyspaces/latest/devguide/images/workbench/key_nosql_cassandra.png)