title: Not able to connect to redis on ec2 from another ec2 instance
body: <p>I am running redis 2.8.7 on one box. From other box (both are aws ec2) i am issuing  this command
  redis-cli -h , but I get this error </p>
  
  <p>Could not connect to Redis at :6379: Connection refused</p>
  
  <p>port 6379 on box 1 is open for box2
  Also, there is no id/pwd for redis</p>