Provide credentials for CQLSH

Provide a username and password to connect to a node on an authentication enabled HCD cluster using credentials:

Debugging cqlsh authentication

If problems occur while authenticating, then use the --debug option to show CQL shell settings and connection details.

Locate the cqlshrc file. The location of this file depends on the type of installation:
- Package installations: /etc/hcd/cassandra
- Tarball installations: <installation_location>/resources/cassandra/conf
Set credentials in the cqlshrc file:
1. Create or modify the ~/.cassandra/cqlshrc file by adding an [authentication] section with a username and password.
  [authentication] username = <role_name> password = <password>
  See cqlshrc.sample for an example.
2. Save the file in <$HOME>/.cassandra directory.
3. Set permissions on the file to prevent unauthorized access, because the password is stored in plain text.
  chmod 440 <$HOME>/.cassandra/cqlshrc
4. Check the permissions on <$HOME>/.cassandra/cqlshrc_history to ensure that plain text passwords are not compromised.

On the command line: