Re: Firewall blocking my new Debian 11 server ports 80 and 443

[IL Ka]

> When running those, I'm told neither the arptablrs nor the ebtables are
> registered (not installed). Should I install them?
>
No.

So, you now have legacy (classic) iptables, right?
What is the output of ``iptables -L -v -n`` and ``iptables -S`` ?