Something

$ sudo iptables -vL
Chain INPUT (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
   45  3720 ACCEPT     all  --  lo     any     anywhere             anywhere
    9  1428 ACCEPT     all  --  any    any     anywhere             anywhere            state RELATED,ESTABLISHED
    0     0 ACCEPT     icmp --  any    any     anywhere             anywhere            limit: avg 30/min burst 5
    0     0 ACCEPT     tcp  --  any    any     anywhere             anywhere            tcp dpt:ssh