disable Ubuntu default firewall on Oracle Cloud
sudo iptables -F
sudo netfilter-persistent save
iptables -F
: Flush (remove all) iptables rulesnetfilter-persistent save
: Save empty ruleset to disk so it will be reloaded on reboot.
sudo iptables -F
sudo netfilter-persistent save
iptables -F
: Flush (remove all) iptables rulesnetfilter-persistent save
: Save empty ruleset to disk so it will be reloaded on reboot.