~$ ssh -i ~/.ssh/aws-key ubuntu@3.124.183.136
 
ubuntu@ip-172-31-33-155:~$ ip a s eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc fq_codel 
          state UP group default qlen 1000
    link/ether 06:81:3f:17:b3:7e brd ff:ff:ff:ff:ff:ff
    inet 172.31.33.155/20 brd 172.31.47.255 scope global dynamic eth0
       valid_lft 2160sec preferred_lft 2160sec
    inet6 fe80::481:3fff:fe17:b37e/64 scope link 
       valid_lft forever preferred_lft forever
