Enabling and disabling Kerberos authentication 

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 authentication_options section of the dse.yaml file, add or remove kerberos as an authentication scheme: default_scheme: kerberos or other_schemes: kerberos

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