cqlsh connecting to remote host

cqlsh connecting to remote host.

error: cqlsh 159.65.236.256
Connection error: ('Unable to connect to any servers', {'159.65.236.256': error(111, "Tried connecting to [('159.65.236.256', 9042)]. Last error: Connection refused")})

How to avoid:
1) Edit the cassandra.yaml, look for rpc_address and set it to its nodes IP address and restart the service.
rpc_address: 204.48.257.10 (respecitive hosts IP)
service dse/cassandra restart

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