1. [ec2-user@fedora ~]$ ss -lnt
  2. State Recv-Q Send-Q Local Address:Port Peer Address:Port
  3. LISTEN 0 128 :::22 :::*
  4. LISTEN 0 128 *:22 *:*
  5. LISTEN 0 10 127.0.0.1:25 *:*
  6. LISTEN 0 128 *:80 *:*