Enabling and disabling Kerberos security 

Turn Kerberos authorization on and off by changing the authenticator in cassandra.yaml.

After setting up Kerberos users, you can turn Kerberos authorization on and off by adding and removing the Kerberos as an authentication scheme in the cassandra.yaml file:

The location of the cassandra.yaml file depends on the type of installation:
Package installations /etc/dse/cassandra/cassandra.yaml
Tarball installations install_location/resources/cassandra/conf/cassandra.yaml
The location of the dse.yaml file depends on the type of installation:
Installer-Services /etc/dse/dse.yaml
Package installations /etc/dse/dse.yaml
Installer-No Services install_location/resources/dse/conf/dse.yaml
Tarball installations install_location/resources/dse/conf/dse.yaml