title: Redis Configuration, need to allow remote connections but need security
body: <p>I need my about two EC2 instances which need to connection to an outside redis server. The redis conf is binded to <code>0.0.0.0</code> to allow this. Is there some sort of a password/auth system for redis connections? I need to way to allow my servers to connect to remote redis but block everyone else.</p>
  
  <p>I know I can do this with <code>iptables</code> by whitelisting only those EC2 ip addresses for port <code>6379</code> but I was wondering if there was a proper way to do this.</p>