Restrict Cassandra cluster node joins to a list of named hosts
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                 Key: CASSANDRA-2274
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2274
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
    Affects Versions: 0.7.2
         Environment: All
            Reporter: Andrew Schiefelbein


Because firewalls and employees are not infallible it would be nice to restrict 
the ability of any node to join a cluster to a list of named hosts in the 
configuration so that someone would be unable to start a node and replicate all 
the data locally.  I understand that in order to do this the person must know 
the seed servers and the cluster name and to extract the data they will need a 
userid and password but another level of security would be to force them to 
execute any brute force attack from a locked down server instead of replicating 
all the data locally.  

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