title: ssh: connect to host 18.116.70.233 port 22: Connection timed out
body: <p>When I try to connect ec2 instance using this command from ubuntu terminal:
  ssh -i &quot;private_key.pem&quot;  ubuntu@ip_address</p>
  <p>after taking some times it shows:
  ssh: connect to host 18.116.70.233 port 22: Connection timed out</p>
  <p>Note:
  1.firewall is inactive
  2.rebooted 3-4 times
  3.ssh is installed
  didn't work</p>