I have the same problem as aws1971. The save commands are not working: "No such file or directory". Also the commands make no difference for me
Was not aware that I need to install them separately, I did now via
sudo apt-get install iptables-persistent
Now I have them and the commands work but they don't fix the problem. The request still run into a timeout
Have you installed the iptables-save commands?
Edit: Moved to new topic. Somehow this comment is after your latest comment.
What are you using to test this timeout? Also, share the output of these commands:
sudo iptables -L INPUT
sudo ip6tables -L INPUT
The details about how I test the related timeout are in the GitHub issue: 1879
$ sudo iptables -L INPUT
Chain INPUT (policy ACCEPT)
target prot opt source destination
REJECT tcp -- anywhere anywhere tcp dpt:https reject-with icmp-port-unreachable
REJECT tcp -- anywhere anywhere tcp dpt:https reject-with tcp-reset
~ $ sudo ip6tables -L INPUT
Chain INPUT (policy ACCEPT)
target prot opt source destination
REJECT tcp anywhere anywhere tcp dpt:https reject-with icmp6-port-unreachable
REJECT tcp anywhere anywhere tcp dpt:https reject-with tcp-reset