title: Can't start Cassandra server with public IP(Port 7000 error)
body: <p>I'm seting up cassandra server on centos 6.8 and change to public IP
  by using <a href="https://stackoverflow.com/a/17164723/10206109">https://stackoverflow.com/a/17164723/10206109</a> method but it stuck when start server with cassandra -f -R and I got this error:</p>
  
  <pre><code>ERROR [main] 2019-09-10 11:42:31,684 CassandraDaemon.java:749 - Fatal 
  configuration error
  org.apache.cassandra.exceptions.ConfigurationException: Unable to bind to 
  address /&lt;public ip&gt;:7000. Set listen_address in cassandra.yaml to an 
  interface you can bind to, e.g., your private IP address on EC2
      at org.apache.cassandra.net.MessagingService.getServerSockets(MessagingService.java:739) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.net.MessagingService.listen(MessagingService.java:681) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.net.MessagingService.listen(MessagingService.java:665) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.service.StorageService.prepareToJoin(StorageService.java:796) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.service.StorageService.initServer(StorageService.java:683) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.service.StorageService.initServer(StorageService.java:632) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:388) [apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:620) [apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:732) [apache-cassandra-3.11.4.jar:3.11.4]
  </code></pre>
  
  <p>I try to change in /cassandra.yaml </p>
  
  <pre><code>rpc_address: 0.0.0.0
  listen_address: &lt;public ip&gt;
  broadcast_rpc_address: &lt;public ip&gt;
  </code></pre>
  
  <p>but it still stuck in this point</p>