## FROM https://stackoverflow.com/questions/54794217/opening-port-80-on-oracle-cloud-infrastructure-compute-node

#First check if there's a bunch of crap from Oracle with

sudo iptables -L

#It should appear a lot of messages with:

#"/* See the Oracle-Provided Images section in the Oracle Cloud Infrastructure documentation for security impact of modifying or removing this rule */"

​

#If so, execute the rest:

​

sudo iptables-save > ~/iptables-rules

​

sudo iptables -P INPUT ACCEPT

sudo iptables -P OUTPUT ACCEPT

sudo iptables -P FORWARD ACCEPT

sudo iptables -F

​

sudo iptables --flush