title: Change security group on AWS RDS Database Instance
body: <p>I've created a Postgresql database instance via AWS RDS. I am now trying to connect to it from my django app, so I created a new security group and changed the imbound rules. </p>
  
  <p>However how do I make this new rule active? I go onto my database instance and under "Security Groups" it only says: </p>
  
  <pre><code>default (sg-9a15a9f0)
  ( active )
  </code></pre>
  
  <p>and doesn't show the new security group I created. In the Security Group UI, I can't find a button to make the new security group active. </p>
  
  <p>Any idea?</p>