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Can we see the full iptables ruleset? You can PM it if you have security concerns. This should provide it:
iptables -S
You could also try disabling iptables completely, running those commands again, then re-enabling iptables. Though I know nothing about this machine so i'm not sure if that's a completely good idea.
Do you have any additional services running on this Ubuntu machine that could be filtering in-bound tcp/udp traffic?
I set up an AWS account to test this. Are you using "Ubuntu Server 16.04 LTS (HVM), SSD Volume Type - ami-a58d0dc5" from the marketplace, something else from the marketplace, or something you built from scratch? Thanks!
dwhitfield wrote:I set up an AWS account to test this. Are you using "Ubuntu Server 16.04 LTS (HVM), SSD Volume Type - ami-a58d0dc5" from the marketplace, something else from the marketplace, or something you built from scratch? Thanks!
It the "Ubuntu Server 16.04 LTS (HVM), SSD Volume Type - ami-f4cc1de2".