As you are on a Debian based system, follow this:
1. First, install the Cassandra Debian package
% apt-get update % apt-get install cassandra
So, Cassandra will be installed and running now but it is not configured for a multi-node cluster.
2. Now, you can simply use Debian’s package management tool to inquire about Cassandra. Type the below command:
% dpkg -s cassandra