For tarball installations, execute the command from the <installation_location>/bin directory.

If a username and password for RMI authentication are set explicitly in the cassandra-env.sh file for the host, then you must specify credentials.

nodetool disablehintsfordc operates on a single node in the cluster if -h is not used to identify one or more other nodes. If the node from which you issue the command is the intended target, you do not need the -h option to identify the target; otherwise, for remote invocation, identify the target node, or nodes, using -h.

[--] can be used to separate command-line options from the list of arguments, when the list might be mistaken for options.